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.

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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





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





Pontiac 455 Crower Camshaft 60210
Stock pontiac 455 with Crower camshaft 60210 and crower vslve springs. Its obviously wsy too big of a camshaft for the stock 8.5 compression ratio but it runs with thr timing advanced to 25 degrees.




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