Description
Our largest grind that can still be used with a factory oem rocker system. Deep exhaust tone. Radical chop in exhaust. Works well with the factory rocker arms, roller tip rockers or true roller rocker arms. Compression ratios of 10.5 to 10.8. Aftermarket single plane intake manifold , Holley 750 or 950 cfm carb. Enhanced ignition suggested. Works well with 3.73 to 4.30 gear ratios. Headers, True dual exhaust, 2600 to 3500 stall speed converter for automatic transmission. Manual transmission 3.90 to 4.30 gear ratios. RPM range 3000 to 6500.
@.050 234 int.
@.050 241 exh.
Lobe separation 109
Lift Int. .490
Lift exh. 478
suggested lifters https://oldsperformanceproducts.com/product/lifters-hydraulic/
