Maximum street performance, very rough idle, needs headers, 3000+ stall and 9.5:1+ compression.
2,500-6,500 RPM Operating Range
248/248 Duration at .050". 110 Degree Lobe Separation Angle
.525"/.525" Valve Lift
Best with aftermarket torque converters and 9.5:1 compression.
Easy on valve train parts, and can be used with mild ratio rocker arms and traditional performance valve springs.
Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer.
Made in USA
Fit type: Vehicle Specific
Description
Maximum street performance, very rough idle, needs headers, 3000+ stall and 9.5:1+ compression.