Pontiac 455 On Dyno

These one piece type headers are easy to install. "Pontiac Intake Manifold Tests on a well tuned stock type 455 in a 3900# vehicle. Check out this sweet first-time engine build of a Pontiac 455 Tri-Power. Now, all our engines get one. 060 over with TRW Forged pistons. The Pontiac Firebird is an American automobile built by Pontiac from the 1967 to the 2002 model years. 5 L) engine, and the final year of any 455 HO engine or package. If you've ever thought about "stepping it up a notch", now's the time. Model year 1976 was the last year that Pontiac produced the 455 cu in (7. The 455 it seems is a problematic issue I have had 0 luck with these all have blown up or failed in some way. 62 heads 69. Used Pontiac V8 timing chain cover. 1 kgm) at 2700. High Performance Pontiac V-8 Engine Builds? And only the dyno or the strip will be a true indicator of 450+ hp. 5L/455 Crane Cams Parts and Accessories. 65:1 Harland rockers,Performer intake w/Holley 800 DP,HEI w/MSD 6al,coated 1 3/4" Hedmans dump into Pypes 2 1/2" crossflow system w/X pipe into transverse muuffler. Low compression and very mild custom grind hyd roller cam with a F. Find Pontiac 455 on sale below with the biggest choice of Pontiac 455 anywhere online. 540 Horsepower @ 5600 RPM. The Pontiac 400ci engine arrived in '67, followed in 1970 by the 455. By 1963 Pontiac decided it was time to release the 421 V8 officially to the general public and the motor would continue to be available until the end of the 1966 model year. [email protected] on real street tires and pump gas in a 4800 pound 72 455 SportWagon. 62 heads 69. Edelbrock's E-Tuner app contains dyno developed base setting calibration and gives you complete control of the Pro-Flo 4 system; with the ability to adjust air-fuel ratios, ignition curve, idle speed, acceleration fuel, coolant. port heads. 1973 Pontiac Trans Am 455, Garrett 77mm turbo (now 88mm!) & Methanol injected There is a video in the links here to a webpage showing the dyno run. Posted on June 4, 2015 by Jefferson Bryant in Engine, Racing, Tech // 0 Comments. Engineers did their best to squeeze out as much horsepower as they could. Small Comp Cams hydrauilic roller cam - pump gas. No, it's not the small block Chevy, it's an entirely different engine, although development started around the same time. Pontiac V-8 Camshafts Sorted by Type and Intake Duration Lftr H = Hydraulic, S = Solid (mechanical), HR = Hydraulic Roller, SR = Solid (mechanical) Roller CMC = Camshaft Machine Company. The seller describes this as a "rebuilt correct engine with original top end… completely rebuilt and run in on the dyno. Pontiac Performance Parts by LARRY WENZLER Pontiac Performance Parts at reasonable prices Just click on any of the items below for more PONTIAC PARTS info. It has the original block (see pics) I am not a dealer or a car flipper. GET YOURS NOW. It has since been upgraded by ARC Race Cars in New Oxford PA with a chrome moly roll cage, chrome Strange Strut Front end, double frame rail and 9″ rear, NHRA certified to 7. ENGINES We are your one-stop source for Pontiac Performance from parts to complete dyno-tested engines! We have engines for any application from 12 second daily drivers to 10 second pump gas street engines to 7 second race engines. Block 1974 455, standard bore, honed cylinders, standard 1970 455 pistons and rods(the pistons and rods are a set of used ones I had) std crank, polished journals, standard. Posted on June 4, 2015 by Jefferson Bryant in Engine, Racing, Tech // 0 Comments. All parts are top shelf components that are listed below. One day I hope to find my brother's old '71 GTO hardtop and build it up with a 455 HO/4sp. Pontiac 400 and 455 engines make good torque and horsepower, even with a stock stroke crankshaft, but an Eagle Pontiac stroker engine kit will improve the performance of these engines even more. Ordering the 'L75' 455 in the Pontiac Firebird Trans Am included the same packaged items as the previous model year, with the sole exception that the 'shaker' hood scoop call out now simply read "455". With a small investment, a basic 455 can easily be built to deliver well over 450 horsepower at a very streetable rpm. 00 Total machine work. By 1974, most cars had gone away from a monster big block due to rising fuel economy concerns. 4-speed transmission. " Pontiac introduced this block in 1955 at 287 cubic inches and it grew internally to this 455 cubic inch monster. by Diego Rosenberg The only Pontiac that impressed me more was a 455 SD that had a mild cam that would run 12's all day in a 74 TA. Have HK Motorsports Dyno Shop take a look at your muscle / classical / traditional Pontiac after all others have worked on it and give you what your car really deserves, Horsepower and efficiency! Areas where we specialize in: Engine, horsepower, and high performance upgrades for your Firebird or GTO Power train modification. If you're looking for help and want to draw people in who can assist you, use a descriptive subject title when posting your message. For is a 1968 GTO clone custom pro-street the following modifications have been 1974 Pontiac 455 CID Engine that has been blue printed and balanced with 400 trw rocker arms v-max lifters, chrome m More Info ›. Pontiac gave that engine a 255 net hp rating for 1971. PowerNation TV is America's most watched automotive how-to programming. 5L/455 Crane Cams Parts and Accessories. "Cube for cube, carb for carb, when you put a Pontiac 455 on a dyno and add up the points, which are torque and horsepower, there is no better engine," Taylor said. It put down 848 rwhp and 861 lb-ft of torque on 23 psi. Port sizes are a match. 65:1 rockers. (7,488 cc) engine was available through 1976, but by then, it was down to 200 net horsepower (149 kW), almost shameful for such an enormous engine. 030 overbore by previous shop was not correctly toleranced for forged. 250" stroke to produce 461 cubic inches from a Pontiac 455 engine. Performer RPM Series manifolds. Pontiac Engines, Early (1955 to 1979) Pontiac V-8 engine parts and engine building. For is a 1968 GTO clone custom pro-street the following modifications have been 1974 Pontiac 455 CID Engine that has been blue printed and balanced with 400 trw rocker arms v-max lifters, chrome m More Info ›. Built by J&I Performance. With a small investment, a basic 455 can easily be built to deliver well over 450 horsepower at a very streetable rpm. Unusual Pontiac Grand Prix With Top-Dog 428 HO 31. The bore was kept the same and the stroke was extended. Home Forums > General Turbo Tech Sections > Dyno Results and Track Times Forum > 455 pontiac blow thru Discussion in ' Dyno Results and Track Times Forum ' started by KEVIN , Dec 14, 2011. Pontiac 400 and 455 engines make good torque and horsepower, even with a stock stroke crankshaft, but an Eagle Pontiac stroker engine kit will improve the performance of these engines even more. Jim Hand (big poncho builder) has taken the famous Pontiac "041" cam used in the 400 ram air 370 hp motors (needs about 10:1 and good gears in a 400 to work well) and run it in 455 and it is much more street friendly. No, it's not the small block Chevy, it's an entirely different engine, although development started around the same time. The initial plan was to offer the SD-455 in the 1973 GTO, Firebird Formula, and Trans Am. Pontiac 455 cam recommendation. The wonderful sound of a Rochester Quadrajet making a full-throttle pull on the chassis dyno in our 1972 Pontiac Trans Am with 455 H. engine with cast iron #197 rd. The book showed a few pics of a re-worked early Pontiac stock manifold that flowed just about as well, or better in many cases, than many of the expensive. Very nice and streetable combo for this customer's 1972 Formula Firebird. 1 kgm) at 2700. 1977 SE blocker II 450 hp. How hard to get 400 hp out of a 400 pontiac engine SE clone ,then maybe the direction a Guy should go is with pontiac's 455. 455 Pontiac Engine Parts. Designed for 1965-79 389-455 c. Posted on June 4, 2015 by Jefferson Bryant in Engine, Racing, Tech // 0 Comments. If you're looking for help and want to draw people in who can assist you, use a descriptive subject title when posting your message. 78 trans am Blocker SE 380 hp. 060" %428 bored. Edelbrock's E-Tuner app contains dyno developed base setting calibration and gives you complete control of the Pro-Flo 4 system; with the ability to adjust air-fuel ratios, ignition curve, idle speed, acceleration fuel, coolant. Pro Magnum┬Щ Hydraulic Lifters; Olds (V8 260-455) Pontiac (V8 326-455). The Pontiac Trans-Am turned into a hellishly successful car in the face of all the gloomy sales forecasts. You Have Selected. Features a Butler Performance 650 HP pump gas Pontiac Engine! This combo is based on a 455 block (4. For is a 1968 GTO clone custom pro-street the following modifications have been 1974 Pontiac 455 CID Engine that has been blue printed and balanced with 400 trw rocker arms v-max lifters, chrome m More Info ›. These parts can be difficult to find sometimes but since we have a large network of salvage yards and part suppliers chances are always pretty good that we'll be able to help you find the parts you need. 5L/455 Crane Cams and get Free Shipping on Orders Over $99 at Summit Racing! PONTIAC 7. Pontiac V-8 Camshafts Sorted by Type and Intake Duration Lftr H = Hydraulic, S = Solid (mechanical), HR = Hydraulic Roller, SR = Solid (mechanical) Roller CMC = Camshaft Machine Company. Note, though, that we used a '71 Q-jet, number 7041263 on our initial dyno tests. The wonderful sound of a Rochester Quadrajet making a full-throttle pull on the chassis dyno in our 1972 Pontiac Trans Am with 455 H. Dyno tested at low end and top speed to increase horsepower. The 1974 Pontiac Firebird Trans Am Super Duty 455 is regarded by many as the last of the greats from the original muscle car era. Yesterday 09:33 PM by PontiacJim. lunati cams for 265-455 cid pontiacs Wed, 2013-06-05 12:03 Throughout the 1960s and '70s Pontiac was known for pushing the limits - always finding a way to put its largest engines into its smaller cars, even when faced with ever-increasing governmental restrictions. I've always found it interesting that General Motors at that time had three 455 cubic-inch V8s from Buick, Oldsmobile, and Pontiac. How rare are these engines and are they reliable? I am thinking about pulling that engine out and putting in a LS3 pontiac engine in my Lemans Sport. by Diego Rosenberg The only Pontiac that impressed me more was a 455 SD that had a mild cam that would run 12's all day in a 74 TA. Super Duty 455's used Pontiac's legendary round port cylinder heads while the non Super Duty used standard D-port heads. SD performance rebuilt the 62 Pontiac heads with port work, stump puller roller cam, and Pontiac intake manifold ported. PerTronix D71200 Flame-Thrower HEI III Distributor, Pontiac 301-455 It's out with the little old 307 and to the dyno with our new 383 from BluePrint Engines!. The 455 Super Duty had seen its second and last year in the Firebird, with a net horsepower decrease, down from 310 to 290. Base, High Output, and Super Duty. 535 horsepower Pontiac 455 shortblock. Low compression and very mild custom grind hyd roller cam with a F. Pontiac Engines, Early (1955 to 1979) Pontiac V-8 engine parts and engine building. r with 7 psi boost on pump gas. 455 Oldsmobile High Performance Balanced Engine FREE professional crating and shipping in the contiguous US when you "Buy it Now"! International shipping available please contact us! This Oldsmobile 455 Crate Engine by Blue Monkey Performance would be EXCELLENT to bring your old Olds to life! This engine is custom built and can be built with a. Adams' team cleverly disguised the new motor as a warmed-over version of the high-volume production 455 in Pontiac's parts bin, but in reality, the SD-455 more closely resembled a detuned race motor and shared very little in common with the more pedestrian. Thus, the 1976 Trans Am was the last of the "Big Cube Birds," with only 7,100 units produced with the 455 engine. All parts are top shelf components that are listed below. Unusual Pontiac Grand Prix With Top-Dog 428 HO 31. This stroker combination uses a 4. I've always found it interesting that General Motors at that time had three 455 cubic-inch V8s from Buick, Oldsmobile, and Pontiac. Turbos are a pair of T04B 60-1's with. almost every kind of intake available for the Pontiac V8. Video: 1,800 Horsepower Twin Turbo 455 LSx Engine on the Dyno By Chris Demorro May 13, 2011 If you're looking to make a lot of power…and we mean a LOT of power, you're going to need some forced induction. This is a complete Pontiac rotating assembly / Eagle crank kit prepared by Tin Indian Performance. Pontiac V8's (except Ram Air V and 265/301 V8's). With our full range of services you can choose whether to have your engine built and tuned here or if you prefer to do it yourself we are more than happy to break it in on the dyno. Dyno tuning is an easy and accurate way to ensure that your Pontiac is running its best. The engine was used across the Oldsmobile lineup through 1976 and horsepower ranged from 275 up to 400. From the guy (me) who made low compression, pump gas, (93 or less,) reliable engines an. Want to upgrade stock oil pump to 60 lb. GET YOURS NOW. com, the official website for Hot Rod Magazine. Have HK Motorsports Dyno Shop take a look at your muscle / classical / traditional Pontiac after all others have worked on it and give you what your car really deserves, Horsepower and efficiency! Areas where we specialize in: Engine, horsepower, and high performance upgrades for your Firebird or GTO Power train modification. Used Pontiac V8 timing chain cover. These one piece type headers are easy to install. The base 1970-71 engine produced 200 hp and 455 lb/ft torque. On a dyno it performs similarly to a RARE Ram. 465" lift at the valve and a. This engine will be installed. Modified a 455 is going to beat a 400, but a stock 455 may have trouble (depending on year). Pontiac 326-455 V8 - Single Supercharger Kit Complete kit will mount one TorqStorm® Supercharger to a 326-455 Pontiac V8 carburator engine and 1967-1969 F-Body cars (please select proper kit from the options below). 4-speed transmission. The 455 was also burly enough to handle all the power accessories, such as air conditioning, that GTO owners were beginning to order. That project is the restoration of his 1969 GTO. Garage kept since restored. Howards Pontiac V8 Hydraulic Flat Tappet Camshafts at Competition Products! Howards, Hydraulic Flat Tappet Camshaft, Pontiac V8 265-455, Howards, Hydraulic Flat Tappet Camshaft, Pontiac V8, Custom. Engine was overbuilt to allow easy HP gain with bolt on parts later. 95 posts Power gain on the dyno was 146HP with cam change. lbs of torque to the wheels on a Mustang Dyno. Olds 455 Dyno Results. And probably the same numbers here for a Pontiac custom cam would apply: Part number: 51-000-9 Engine: P8 Pontiac V8 265-455 1955-1981. "400 HP - 500 Ft-Lb Torque Big Block 455 Oldsmobile Judgement Day" We bolted the 455 Olds to the DTS engine dyno to see what kind of power it would make. For its time, only the Cadillac 500 was more of a torque monster. Rocker arms. Pretty good huh? All of those part is not readily available from Pontiac and must ready to wait a little longer than expected. Dave was a co-partner with famed ace mechanic Demetri Kokkoris, the team originally known as SUPERJET SPECIALTIES of Queens, NY. The 455 Super Duty had seen its second and last year in the Firebird, with a net horsepower decrease, down from 310 to 290. The question becomes, which of these motors is most desireable, reliable or rebuildable. The factory air intake (drivers side panel) is more than acceptable to provide enough air-flow for an otherwise totally stock Fiero 2. 535 horsepower Pontiac 455 shortblock. Featuring a Pontiac 400 cubic inch block stroked to 455 cubic inches, this authentic Pontiac stroker is perfect for street and strip use. Designed for 1965-79 389-455 c. Olds", Joe Mondello, Joe and Mike finish the. Adams' team cleverly disguised the new motor as a warmed-over version of the high-volume production 455 in Pontiac's parts bin, but in reality, the SD-455 more closely resembled a detuned race motor and shared very little in common with the more pedestrian. Edelbrock has developed a dyno-matched, street proven camshaft (#2157 for 350-455 c. This is for 69-79 Pontiac 350-455 w/ 11-bolt water pumps Good condition If you see the ad, the item is still available $80. See photos. EngineLabs is launching a new feature titled Homegrown Horsepower. Pontiac Stroker Kits Eagle Pontiac 400 and 455 Stroker Kits. The three images on the left show a pontiac 455 before and after a custom cam install and tune while using our engine dyno. Very interesting results. And finally we get to the Judge, also known as "the Humbler. Unusual Pontiac Grand Prix With Top-Dog 428 HO 31. The engine was used across the Oldsmobile lineup through 1976 and horsepower ranged from 275 up to 400. Crower builds performance racing parts from camshafts to crankshafts. 1973 Trans Am Dyno and test drive. Now, all our engines get one. 461 cid Pontiac engine can be built with a stock Pontiac block or an MR-1 aftermarket block. " Note; The following summary of intake manifold tests was prepared prior to the formal article in "High Performance Pontiac" magazine published several years ago. Thus, there is technically no "big block" Pontiac though 455 cubes is a lot of displacement. almost every kind of intake available for the Pontiac V8. 060 over with TRW Forged pistons. Full Roller motor. I have a few projects (56 Buick , 55 Caddy) that could use a 455 Buick Olds or Pontiac engine. 5L/455 Crane Cams and get Free Shipping on Orders Over $99 at Summit Racing! PONTIAC 7. This stroker combination uses a 4. The stock Pontiac guideplates are fine to reuse as long as the pushrod diameter is the same as stock or if the pushrod OD is larger, the holes are tweaked to allow the pushrods to fit without interference. Yesterday 09:33 PM by PontiacJim. The factory air intake (drivers side panel) is more than acceptable to provide enough air-flow for an otherwise totally stock Fiero 2. You Have Selected. 79 trans am SE 4 speed. The Pontiac Firebird is an American automobile built by Pontiac from the 1967 to the 2002 model years. This is our first aluminum Pontiac head casting that we have brought to the marketplace. 040" over (4. As the years passed it lost some of the brutal acceleration it enjoyed during its 455. If you were interested in the same cam for a Pontiac 455 based combo you could call a Comp Cams tech rep and have a custom cam made using a Pontiac core and using these specifications. 042" (crushed) head gasket, 6 cc valve reliefs for 400 stock pistons, 5 cc for -. Super Duty 455's used Pontiac's legendary round port cylinder heads while the non Super Duty used standard D-port heads. Rex Gibsons King Street 455. They used the HO moniker to counteract the perception of lost performance. Base, High Output, and Super Duty. the pontiac which was a 455 had a set of 87cc performer heads, victor junior, 230/236duration cam @50with not very much lift, and a 750 or 850 holley or demon carb made 501hp and 570 foot pounds I believe. lbs of torque to the wheels on a Mustang Dyno. 461 cid Pontiac engine can be built with a stock Pontiac block or an MR-1 aftermarket block. The car's exterior is both modern and retro at the same time, featuring sleek body lines with classic elements. Old-school-cool Pontiac performance is alive and well. It has the original block (see pics) I am not a dealer or a car flipper. Balancing adds $200 to all of the. The building of a supercharged, 1,100-horsepower Hemi engine for the MAHLE Dodge Challenger, the grand prize in the 2019 MAHLE Drive with the Original technician promotion, is documented in the second in a series of videos posted by MAHLE Aftermarket North America. It has since been upgraded by ARC Race Cars in New Oxford PA with a chrome moly roll cage, chrome Strange Strut Front end, double frame rail and 9″ rear, NHRA certified to 7. Our site showcases an extremely large variety of listings at the best prices. High performance Pontiac 455, 428 and 400 blueprinted crate engines including stoker motors for traditional Pontiacs. Very interesting results. Edelbrock's E-Tuner app contains dyno developed base setting calibration and gives you complete control of the Pro-Flo 4 system; with the ability to adjust air-fuel ratios, ignition curve, idle speed, acceleration fuel, coolant. A nice 400 Pontiac or 455 will fit just, I built many Poncho motors for club members and they are all pleased with the results. Pontiac V-8 Camshafts Sorted by Type and Intake Duration Lftr H = Hydraulic, S = Solid (mechanical), HR = Hydraulic Roller, SR = Solid (mechanical) Roller CMC = Camshaft Machine Company. True output is 525 Hp @ 7500 for GTO and 475 Hp @ 7300 for Firebird. Looking for a shortcut. Same owners for 25 years. Rocker arms. The bore was kept the same and the stroke was extended. Its the last. These one piece type headers are easy to install. We drilled and tapped the #2 and #4 main caps to accept the earlier windage tray. When C&D tested a 1979 4-speed Trans Am with the emissions-controlled W72 400 engine, the one with a 220-hp net rating and the "T/A 6. The Pontiac V8 shared some design features with the Chevrolet small-block V8, but was overall a unique design, distinct from Buick, Chevrolet, or Oldsmobile engines. Cylinders bored. The building of a supercharged, 1,100-horsepower Hemi engine for the MAHLE Dodge Challenger, the grand prize in the 2019 MAHLE Drive with the Original technician promotion, is documented in the second in a series of videos posted by MAHLE Aftermarket North America. I was going in this direction primarily for the torque these engines produce. Old-school-cool Pontiac performance is alive and well. Crower builds performance racing parts from camshafts to crankshafts. That car had a 3. It has the original block (see pics) I am not a dealer or a car flipper. A dyno session is not a 30 minute assembly line job, it takes most of a day per engine to do the right kind of job. Header primary tube diameter should be 1-5/8" to 1-3/4" depending on engine displacement. The 400-455 is pump gas friendly for the mild daily driver. Base, High Output, and Super Duty. 040" overbore. " Note; The following summary of intake manifold tests was prepared prior to the formal article in "High Performance Pontiac" magazine published several years ago. Same owners for 25 years. 5" stroke) and Edelbrock heads. Only at www. 64 cylinder heads. The Pontiac GTO remains an icon of the muscle car era. Custom built Pontiac 400 crate engine. Proprietor Nick Panaritis has a reputation for screwing together some of Canada's more impressive engines, and provides a wide range of performance vehicle services. The book showed a few pics of a re-worked early Pontiac stock manifold that flowed just about as well, or better in many cases, than many of the expensive. The Pontiac V8 shared some design features with the Chevrolet small-block V8, but was overall a unique design, distinct from Buick, Chevrolet, or Oldsmobile engines. High Performance Pontiac V-8 Engine Builds? And only the dyno or the strip will be a true indicator of 450+ hp. Olds", Joe Mondello, Joe and Mike finish the. How rare are these engines and are they reliable? I am thinking about pulling that engine out and putting in a LS3 pontiac engine in my Lemans Sport. This stroker combination uses a 4. Dyers Blowers is one of the leading manufacturers of street strip superchargers. Car is a 1980 Turbo Trans Am that's run a best of 9. OK, here is my buildup for the page, this combo has gotten me a best time of 13. Small Comp Cams hydrauilic roller cam - pump gas. /455 block, very mild HYD ROLLER Cam, 8:1 c. They used the HO moniker to counteract the perception of lost performance. Pontiac's at idle & more donotwist; 1973 Brewster Green Pontiac Trans Am 455 Dyno. Designed as a muscle car to compete with the Mercury Cougar and Dodge Challenger , it was introduced February 23, 1967, the same model year as GM's Chevrolet division platform-sharing Camaro. These parts can be difficult to find sometimes but since we have a large network of salvage yards and part suppliers chances are always pretty good that we'll be able to help you find the parts you need. Home Forums > General Turbo Tech Sections > Dyno Results and Track Times Forum > 455 pontiac blow thru Discussion in ' Dyno Results and Track Times Forum ' started by KEVIN , Dec 14, 2011. or call: 414-764-4586. How rare are these engines and are they reliable? I am thinking about pulling that engine out and putting in a LS3 pontiac engine in my Lemans Sport. The Pontiac GTO remains an icon of the muscle car era. Muscle Cars. The result was the Super Duty 455 V8, a name which was a nod to the company's successful early 1960s efforts in NASCAR and the NHRA. Super Duty 455's used Pontiac's legendary round port cylinder heads while the non Super Duty used standard D-port heads. Used Pontiac V8 timing chain cover. Same owners for 25 years. SD-455 prices rose sharply, along with most Trans Ams, as 1980s high-school grads finally started buying their dream machines. The book showed a few pics of a re-worked early Pontiac stock manifold that flowed just about as well, or better in many cases, than many of the expensive. In 1970 Pontiac increased the displacement in an attempt to make up for reduced compression required by new government regulations. Read on as we take out our two-bolt 455 block engine out from out 1973 Pontiac Bonneville wagon and build up it's horsepower. Both have been infused with Pro Plasma Nitriding Treatment. You'll find in the following a complete line of finely tuned engine combinations. 461 cid Pontiac engine can be built with a stock Pontiac block or an MR-1 aftermarket block. #64 Heads, sevice replacement block. The 455 HO is a bored out version of the Pontiac 400 HO. Auction Lot T51, Harrisburg, PA 2019. Rob submitted his stroked 400 engine for consideration into the 1-to-1 Club. High Performance Pontiac V-8 Engine Builds? And only the dyno or the strip will be a true indicator of 450+ hp. The seller describes this as a "rebuilt correct engine with original top end… completely rebuilt and run in on the dyno. Turns over smoothly. The 455 wielded massive horsepower, but a new horsepower rating system and tighter emission controls drove the 455's power lower each year until GM abandoned the engine in 1976. Some of our popular engine combinations like our 350,400,455 and world renowned strokers like the 461 are best used for street/strip hot rods. Same owners for 25 years. Pontiac 455 Tri-Power #americanmusclecarsplymouth. Let us build you the engine you want in our full service shop. Rob submitted his stroked 400 engine for consideration into the 1-to-1 Club. My '77 T/A Special Edition 400W72 motor was built by me and was dyno tested, 475hp and 495ft. The initial plan was to offer the SD-455 in the 1973 GTO, Firebird Formula, and Trans Am. Fit For : 1964-1972 Pontiac GTO 326-455 V8 OBX High performance racing headers are made out of pure SUS-304 stainless steel. Thus, the 1976 Trans Am was the last of the "Big Cube Birds," with only 7,100 units produced with the 455 engine. or call: 414-764-4586. This is a very powerful motor that produced 437 HP, and 457 ft. Unusual Pontiac Grand Prix With Top-Dog 428 HO 31. On the seventh of February, 1973, our test Firebird Trans Am SD-455 swept through the quarter-mile at Orange County International Raceway in Irvine, California in an elapsed time of 13. 5L/455 Crane Cams Parts and Accessories. Performer RPM Series manifolds. 1970 Pontiac Trans Am Lucerne Blue 1 of 3,196 sold in '70,sold new in Waco,Texas Engine is Pontiac 455. An engine dyno uses a water brake to measure engine output. Torque @ 3800 RPM : This powerful and durable engine will replace your current Pontiac without modifications. It seems when you rebuild and try to hop up things get expensive and reliability goes out the door compared to a Ford or Chevy. 73 Trans Am 455 brewster green. EngineLabs is launching a new feature titled Homegrown Horsepower. PerTronix D71200 Flame-Thrower HEI III Distributor, Pontiac 301-455 It's out with the little old 307 and to the dyno with our new 383 from BluePrint Engines!. The 455 HO is a bored out version of the Pontiac 400 HO. For its time, only the Cadillac 500 was more of a torque monster. Welcome to the Nitemare Performance Dyno Laboratories. "Cube for cube, carb for carb, when you put a Pontiac 455 on a dyno and add up the points, which are torque and horsepower, there is no better engine," Taylor said. Read on as we take out our two-bolt 455 block engine out from out 1973 Pontiac Bonneville wagon and build up it's horsepower. The Pontiac 455 came in 3 versions. Pontiac gave that engine a 255 net hp rating for 1971. Old-school-cool Pontiac performance is alive and well. 461 cid Pontiac engine can be built with a stock Pontiac block or an MR-1 aftermarket block. I took my Twin Turbo Trans Am to the dyno today. Pontiac Rotating Assembly & Pontiac Stroker Kits. Pontiac 461 custom built crate engine 461 Pontiac Crate Engine 475 HP With Aluminum Heads He took a 455 crankshaft and machined it to fit in a 400 block. Rex Gibsons King Street 455. Engine uses a Crower hydraulic flat tappet cam, PRO Sport Cast Crankshaft, PRO Sport 6. Thus, the 1976 Trans Am was the last of the "Big Cube Birds," with only 7,100 units produced with the 455 engine. Critics said, however, they felt no performance change in the car. Edelbrock Part # 7157 Performer RPM Camshaft is designed for Pontiac 350-455 V-8 applications. One day I hope to find my brother's old '71 GTO hardtop and build it up with a 455 HO/4sp. 030 Over 455 , 10:1 forged rotating assembly, 4 bolt mains, e-heads. Muscle Cars. 040" over (4. The result was the Super Duty 455 V8, a name which was a nod to the company's successful early 1960s efforts in NASCAR and the NHRA. Pontiac 400 428 455ci Street Crate Engines Bill Cannon, the owner started racing with his first car, a 1965 GTO 428 4 Speed in 1975. 65:1 rockers. 250" stroke to produce 461 cubic inches from a Pontiac 455 engine. Custom built Pontiac 400 crate engine. "Pontiac Intake Manifold Tests on a well tuned stock type 455 in a 3900# vehicle. Now, all our engines get one. We are pleased to introduce to you, our aluminum D-port Pontiac head. General engine tech -- Drag Racing to Circle Track. It's not often that we can gather a group such as this in the same. The 400-455 is pump gas friendly for the mild daily driver. Find Pontiac 455 on sale below with the biggest choice of Pontiac 455 anywhere online. 455 Pontiac Engine Parts. Dyers Blowers is one of the leading manufacturers of street strip superchargers. 79 trans am SE 4 speed. " Pontiac introduced this block in 1955 at 287 cubic inches and it grew internally to this 455 cubic inch monster. Re: Disappointing Dyno Results (Pontiac 455) Not knowing what lifter used or bleed office size etc not ready to condemn lifter yet did you say under load it was rpming and using lots of fuel but no power 2 cyl with black plugs. Turbos are a pair of T04B 60-1's with. True output is 525 Hp @ 7500 for GTO and 475 Hp @ 7300 for Firebird. Very nice and streetable combo for this customer's 1972 Formula Firebird. 78 trans am Blocker SE 380 hp. The 421 SD Tri-Power engine offered during these years produced the highest horsepower of any motor in the Pontiac V8 lineup at 376 bhp. Where our motors come to life! At Nitemare Performance, we have built Pontiac motors with a wide range of performance levels, from 400 horsepower 'grocery getters' to streetable engines generating in excess of 750 horsepower. Have few parts laying around for a Pontic 400-455 Mallory unilite distributor sold Accel distributor 75, single plane intake sold, deep oil pan, Moroso possibly 9/3/4 deep sold Also two sets of 67-69 Camaro Oem control arms, rebuild with new ball joints and bushings, sandblasted and painted black One set has provisions for front mount rack and pinion (clear inner tie rods) 275. Model year 1976 was the last year that Pontiac produced the 455 cu in (7.