TECH SPECSPart Number: 19432060Engine Type: Chevy Tall-Deck Big-Block V-8Displacement (cu in): 632Bore x Stroke (in / mm): 4.600 x 4.750Block (P/N 19366599): Cast iron Bowtie with 4-bolt main caps – tall deck - Crankshaft (P/N 19366600): Forged 4340 steel - Connecting Rods (P/N ...TECH SPECSPart Number: 19432060Engine Type: Chevy Tall-Deck Big-Block V-8Displacement (cu in): 632Bore x Stroke (in / mm): 4.600 x 4.750Block (P/N 19366599): Cast iron Bowtie with 4-bolt main caps – tall deck - Crankshaft (P/N 19366600): Forged 4340 steel - Connecting Rods (P/N 19432392): Forged steel H-beam - Pistons (P/N 19366601): Forged aluminum 2618 alloy - Intake Manifold (P/N 19366614): Aluminum high-rise single-plane - Throttle Body (P/N 19366624): 4500-style - Valve Lift (in): 0.780 intake / 0.782 exhaust - Camshaft Duration (@ 0.050 in): 270o intake / 285o exhaust - Cylinder Heads (P/N 19431810): Aluminum spread-port; 70cc chambers – RS-X design - Valve Size (in): 2.450 intake / 1.800 exhaust, titanium (5/16-in stem OD)Ignition Type: 58X crank-triggered, coil-near-plug - Compression Ratio: 12.0:1 (nominal)Rocker Arms (P/N 19431272): Forged aluminum; roller-style - Rocker Arm Ratio: 1.8:1 (shaft-mount)Water Pump (P/N 14058915): Aluminum - Oil Pan (P/N 19366604): Steel 8-quart - Recommended Fuel: Premium pump (93 octane or higher)Maximum Recommended RPM: 7,000 rpm - Balanced: Internal. GM BBC Crate Engines, Chevrolet Performance, Pro Touring Store >ZZ632 Crate Engine 1004hp by Chevrolet Performance 19432060