Street/strip, 3000+ stall, likes headers and gears, rough idle.
2,400-6,800 RPM Operating Range
244/252 Duration at .050". 110 Degree Lobe Separation Angle
.590"/.598" Valve Lift
Excellent performance in street carbureted applications.
More vacuum allows an increase in duration for improved performance and assists power brakes.
Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
Best performance with aftermarket intake manifolds, headers and lower gear ratios.
Fits Chevrolet 396-454 Mark IV Big Block
Made in USA