ZZ6 Base Tech Specs:
P/N: 19417576
Power: 405 hp @ 5,600 rpm / 406 lb.-ft. @ 4,600 rpm
Engine Type: Chevy Small-Block
Displacement (cu in): 350
Bore x Stroke (in): 4.000 x 3.48
Block: Cast-iron with 4-bolt mains (P/N 10105123)
Crankshaft: Forged steel, shot peened (P/N 12556307)
Connecting Rods: Forged powder metal (P/N 10108688)
Pistons: Hypereutectic aluminum (P/N 10159436)
Intake Manifold: Single plane aluminum (P/N 12496822)
Camshaft Type: Steel hydraulic roller (P/N 10185071)
Valve Lift (in): .474 intake/.510 exhaust
Camshaft Duration (@.050 in): 208° intake/221° exhaust
Cylinder Heads: Fast Burn aluminum; 62cc chambers (P/N 19300955)
Valve Size (in): 2.000 intake / 1.550 exhaust
Compression Ratio: 9.7:1 nominal
Rocker Arms: Aluminum roller style (P/N 19210724)
Rocker Arm Ratio: 1.5:1
Recommended Fuel: Premium pump
Distributor: HEI (P/N 93440806)
Ignition Timing: 36º Total @ 4,000 rpm
Maximum Recommended rpm: 5,800 rpm
Balanced: External
Flexplate: 12.750″ (P/N 14088765)