Description
Great driveability. Slight exhaust chop. Suggested compression ratio 8.2-8.7. Years 1973-1977 4bbl. 1971-1972 2bbl. Factory exhaust manifolds acceptable. Headers will enhance torque and power. Suggestion to have true dual exhaust. Gear ratio with automatic 3.08 to 3.42. Works well with factory torque converter or even a slight 2200 stall speed. Manual transmission gear ratio suggested 3.42-3.73. Factory oem rocker arms acceptable. Roller tip or true roller rocker will add enhanced performance. RPM range 1800-5200
@.050 216 int.
@.050 220 exh.
Lobe separation 108
Int. Lift .468
Exh. Lift .460
suggested lifters https://oldsperformanceproducts.com/product/lifters-hydraulic/
