1972 Buick GS 455 'Stage 1'
455/270 HP
280 HP @ 4400 RPM's {Rated at BHP. SAE Net}
390 Ft/Lbs. Torque @ 3000 RPM's
Compression............... 10.5 -1
Pistons........................ Dish Type
Deck Height................ -.010" {Below Deck}
Cylinder Head.............. #1238148
Intake Valve................. 2.130"
Exhaust Valve............... 1.755"
Combustion Chamber... 59.0 CC
Carburetor.................... Rochester #7042242 {Factory Modified}
Throttle Sizes................ 1.375" Primary ~ 2.250" Secondary
Venturi.......................... 1.218" Primary ~ Automatic Vacuum
Distributor................... AC Delco {Factory Advanced}
Camshaft..................... .490" / .490" Lift
