Description
Excellent choice for a modified 400 engine. Heavy chop. Deep exhaust tone. Heavy lope. Stall speed of 2400 to 2800 suggested. Suggested for single plane intake manifolds such as Holley Street Dominator, Torker or Port O Sonic. Works well with OEM valve train, roller tip rockers. or ture roller rockers. Aftermarket ignition. Headers suggested. Compression ratio 10.0-10.5. Works well with manual transmission. Gear ratio suggestion for manual transmission 3.73 to 4.30. RPM range 2800 to 6000
@.050 234 int.
@.050 242 exh.
Lobe separation 110
Int. Lift .490
Exh. Lift .485
Suggested lifters https://oldsperformanceproducts.com/product/lifters-hydraulic/
