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Pontiac 455 duet

The LeMans (on the left) has a mild, non-rebuilt 455 with ported & polished 6X heads, c. 9:1 compression, Edelbrock Performer intake, Holley 800 Street Avenger, Comp XE274 cam, making maybe 300-350 horsepower. The Grand Am (right) has a .030 over 455 with Edelbrock heads (87 cc chambers), 10:1 compression, same Comp cam but with 1:65 roller rockers, slightly better Exhaust (H-pipe), Edelbrock Performer RPM intake and Edelbrock 750 carb. About 500 horsepower at the flywheel. The heads make all the difference. The Grand Am has the Flowmaster American Thunder Exhaust system, which has the 50-series mufflers. LeMans has a Summit Exhaust system, which was cheap and went on nice & easy.


 


More Videos...


Pontiac 455 Dyno
.030 Over 455 , 10:1 forged rotating assembly, 4 bolt mains, e-heads. Full Roller motor. 475hp/560ft lbs@ 5000 rpm.





1973 Pontiac LeMans - NED 08-Oct-2008
1973 Pontiac LeMans drag race video





'72 Pontiac Trans Am 455 HO Burnout
As I was walking along the road I was passed by the car followed by the mysterious fog... I wondered what that might have been... The answer is... the Bandit and his T/A are back in town!!!!!!





Horsepower TV - Pontiac 455 ( 474 ) - 612 Pump Gas HP - Dyno Pull
Thanks to the guys on HP TV !!!!! - 12/30/2000 - Factory Distributor - Here you go Pontiac People redid this for your viewing pleasure !!!! .





1976 Pontiac Trans Am with 455 testing out the new engine
In car video of a 1976 Pontiac Trans Am with a 455 in it. This has one of the comp cams extreme 276 cams in it. Probably the most potent cam I have used in any of my pontiac engines and still maintained excellent street manners. Unfortunately, one of the rod bearings did not hold up as well. The purpose of these runs was to try to get the car to blow up if it was going to. It has a slight noise in it that I couldn't figure out. Wound up being top rod bearing on number 7. Was torn down never to be assembled again. Car was awesome though. Sold to Volo auto sales in Chicago. They painted it and sold it as a 50th anniversary clone car for $20k more than they paid me for it.





1974 Trans Am Super Duty 455 Four-Speed FUN
This is a very rare 1974 Pontiac Trans Am Super Duty. Less than 1,000 of this 455-powered, specially built monsters were produced from 73-74. Today they command ever increasing prices approaching six figures.





68 Pontiac GTO Car Craft Dyno Challenge 7/17/09
68 GTO on the Dyno at 2009 Car Craft Nationals. Car made 488HP and 454FTlb torque. This burgundy GTO is equipped with a 455, 72cc Edelbrock heads, and a NOS shot I forgot how much. TH400 with 4.11 posi. Sounded great through open headers. Owned by a nice guy from southern Minnesota.





1973 Pontiac Grand Am 2
1973 Pontiac Grand Am 4 Speed walk around





350 with World heads
.040 over 350, speed pro forged pistons, rebuilt bottom end, double roller chain (note the green over spray lol, it was dark when i painted it, and I probably had a few too) World Sportsman II heads, orginally came with umbrella seals and shitty crack prone single valve springs, now have positive seals, comp dual springs with a dampner and 10degree locks. Performer Intake, with 600cfm Edelbrock, Comp XE274 cam, Comp Pro Magnum rockers 1.52 ratio. 9.3:1 compression, TCI Rattler balancer...and thats really all for the motor...its going in my 82 Monte Carlo, no rust, still needs body work, interior work...and well...it just plain needs work.





MVI 5021
1973 GTO





Pontiacs for 1964
John DeLorean replaced Pete Estes as general manager, and he continued the same emphasis on performance that Bunkie Knudsen and Estes had begun. The big news for 1964 For 1964, the Tempest and LeMans' transaxle design was dropped and the cars were redesigned under GM's new A body platform; frame cars with a conventional front-engine, rear-wheel-drive layout. The most important of these is the GTO, short for "Gran Turismo Omologato," the Italian for "Grand Touring, Homologated" used by Ferrari as a badge to announce a car's official qualification for racing. In spite of a GM unwritten edict against engines larger than 330 ci in intermediate cars, DeLorean (with support from Jim Wangers from Pontiac's ad agency), came up with the idea to offer the GTO as a dealer option package that included a 389 ci engine rated at 325 or 348 horsepower (260 kW). Source: Wikipedia http://en.wikipedia.org/wiki/Pontiac





1972 Trans Am off-idle throttle response
Razor sharp tuning provides instant throttle response from the 455 HO engine.





Pontiac 350 - 350 Horsepower For Less Than $500.00
A short video describing the modifications done to the 65,000 original mile Pontiac 350 engine in my 1975 Formula. Using heads, cam, pushrods, rocker arms and an intake that I had laying around, this Pontiac 350 developed 353 horsepower and 385 lbs/ft of Torque, for less than $500.00 invested.





1969 Pontiac GTO Judge, 625 hp 455, 10 sec. Drag Race Car
This is a short video with some of the best clips from my other GTO videos. If you want more details about the car, it's construction and evolution, check out my first/oldest GTO video (its 7:02 long). I hope you enjoy this video and Thanks for watching.





Camaro Z28 messing with 455 GTO on the street
Late-Model Camaro Z28 with bolt-ons messing with a classic 455 swapped GTO. The GTO jams it and then one of the passengers thought they were being tailed by an unmarked B4C (special service police) Camaro holding a radar gun (video camera, lol) notice the nervous and unsure look on his face as we roll beside, then his complete and total relief once he recognized a couple old pals in just a regular Camaro, lol. (This Camaro made 280hp at the wheels and ran 13.1 at Mason Dixon Dragstrip) This footage was shot way back, many years ago, with an old junky analog camera, so apologize for the poor video quality. Produced by nedaCFilms / Mustang-Town.com & V8ponycars.com





Which car is faster? Which Car is Faster?




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