Chevrolet Big Block 396-502 1965-1996 Adv. Duration: 272/280Duration @ .050":219/227Lift: .555/.555Lobe Separation: 110 LCIncluded Lifters: 91167 Hyd. Roller1600-5000. Good idle, Performance Street. Great low to mid-range. Headers suggested.
Chevrolet Big Block Adv. Duration: 280/280Duration @ .050": 227/227Lift: .555/.555Lobe Separation: 108 LCIncluded Lifters: 91167 Hyd. Roller2000-5600. Mild rough idle, hot street. Should have good exhaust, 2500+ stall & 9.5:1 CR.
Chevrolet Big Block Adv. Duration: 280/280Duration @ .050": 227/227Lift: .555/.555Lobe Separation: 110 LCIncluded Lifters: 91167 Hyd. Roller2000-5600. Mild rough idle, hot street. Should have good exhaust, 2500+ stall & 9.5:1 CR.
Chevrolet Big BlockAdv. Duration: 282/288Duration @ .050": 229/235Lift: .589/.601Lobe Separation: 108 LCIncluded Lifters: 91167 Hyd. Roller2000-5700. Street/strip, 10.0:1+ CR, aftermarket dual plane intake recommended.
Chevrolet Big Block Adv. Duration: 284/288Duration @ .050": 231/235Lift: .578/.618Lobe Separation: 108 LCIncluded Lifters: 91167 Hyd. Roller2400-6000. Fair idle, performance usage. Great mid-range torque & power.
Chevrolet Big Block Adv. Duration: 286/286Duration @ .050": 233/233Lift: .601/.601Lobe Separation: 108 LCIncluded Lifters: 91167 Hyd. Roller2500-6100. Rough idle, Performance Street/Mild Strip. Nice mid-range. 9.5:1+ CR, 2500+ stall.