ON THE DYNO: Pontiac 455 H.O. engine with cast iron #197 rd. port heads. Low compression and very mild custom grind hyd roller cam with a F.A.S.T. EZ 2.0 EFI system. Very nice and streetable combo for this customer's 1972 Formula Firebird. Made over 480 HP and 530 ft/lbs torque. (Engine pics in comments) | Butler Performance Pontiac
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ON THE DYNO: Pontiac 455 H.O. engine with cast iron #197 rd. por…
4.2K viewsApr 23, 2016
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34K views · 1K reactions | Butler built #’s matching 455ci 1973...
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34K views · 1K reactions | Butler built #’s matching 455ci 1973...
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Butler Performance Rebuilt This 455 Super Duty Pontiac
Butler Performance Rebuilt This 455 Super Duty Pontiac
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Imagine this pulls up next to you at the light... Pontiac Trans Am with Butler 455 engine This has a 455 cu in 1971 block with all new Butler internals, new crank, all new roller with big cam. New Miloden oil pan. All premium and quality parts 1 3/4 inch ceramic coated headers with flowmaster 40s. B&M quick silver. Transmission just installed 700R4 4vspd Auto, 2800 Stall. All new Billet distributor, new MSD 6AL rev limiter, all new wires, plugs, 770 Avenger Holley, Rear gears 3.73 all 4 corners
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Imagine this pulls up next to you at the light... Pontiac Trans Am with …
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455 H.O. Engine Fix-Up - Part 2
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