The Ultimate Guide to the Chevy 383 Stroker

Mild-412HP 383
This is a simple and relatively inexpensive combination of a one-piece roller cam block with a stroker crank, 9:1 compression with dished pistons, a tame GM Performance Parts hot hydraulic roller cam, 1.6:1 roller rockers, factory roller lifters, a set of modified Vortec iron heads, an Edelbrock Performer RPM Air-Gap intake, a 750-cfm mechanical-secondary carburetor, and a set of 13/4-inch headers. The only upgrade necessary is some machine work and better valvesprings for the Vortec heads to accommodate the additional valve lift. This combo makes excellent torque with 466 lb-ft at 3,500 and 415 at 5,500 rpm. Even with a stock converter, this is a tire shredder.

Medium-480HP 383
This combination steps up the compression, the heads, and the cam over the mild combo and is rewarded with 70 more horsepower and is still peaking below 6,000 rpm. Overall torque is greater across the board because of the better-flowing TFS 215cc aluminum cylinder heads outfitted with 2.08/1.60-inch stainless valves. This is great overall power because the motor makes more than 450 lb-ft from 3,000 to 5,500. In a 3,400-pound Camaro with an automatic and a 3,000-stall-speed converter, this could run very low 12s, assuming sufficient traction to stick all that torque to the pavement.

By Jeff "Smith,"

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