Description
True roller rockers a must. 7/16th rocker studs required. Moderate chop in exhaust. Suggested compression ratio 9.6 to 9.9. Stall speed suggested minimum 2400 for automatic transmission applications. Can be used with manual transmission as well. Suggested gear ratio with automatic 3.42 to 3.90. Manual transmission gear ratio suggested 3.55 to 4.10. Aftermarket intake, headers, enhanced ignition system suggested. RPM range 2400 to 5800
@.050 228 int.
@.050 235 exh.
Lobe separation 112
Int. Lift .538
Exh. Lift .522
suggested lifters https://oldsperformanceproducts.com/product/lifters-hydraulic/
