Chevrolet Performance 383 C.I. Deluxe Crate Engine 435HP

This engine (CMP19433035) brings 435 high-RPM horsepower using a 3.8" stroke and 4.0" bores. It has large intake runners and lightweight aluminum cylinder heads for fast burn. Beehive-style valve springs allow for bolder revving power!

Features and Benefits:
- Engine Type: Chevy Small-Block V8
- Displacement (cu in): 383
- Bore x Stroke (in): 4.005 x 3.800
- Block: Cast-iron with 4-bolt main caps
- Crankshaft: Forged steel
- Connecting Rods: Heavy-duty forged steel
- Pistons: Hypereutectic aluminum
- Camshaft Type: Hydraulic roller
- Camshaft Lift (in): .509 intake / .528 exhaust
- Camshaft Duration (@.050 in): 222° intake / 230° exhaust
- Cylinder Heads: Fast Burn aluminum; 62cc chambers
- Valve Size (in): 2.000 intake / 1.550 exhaust
- Compression Ratio: 9.6:1
- Rocker Arms: Aluminum roller style
- Rocker Arm Ratio: 1.5:1
- Recommended Fuel: Premium pump
- Ignition Timing: 36° Total @ 4,000 rpm
- Maximum Recommended rpm: 6000
- Balanced: External
- Flexplate: 12.750

Additional Notes:
- 435 horsepower rating achieved during GM testing with high-rise single-plane intake manifold and a 770-cfm carburetor with vacuum secondaries (carburetor NOT included).
- Chevrolet Performance dual-plane intake manifold may be used to avoid hood clearance problems, but peak power may decrease by approximately 15-20 horsepower
- Comes with 12.750" externally balanced 153-tooth automatic transmission flexplate. Requires externally balanced flywheel for manual transmission.
- Not intended for marine applications
- Distributor with melonized steel gear MUST be used with long-blocks and Partial engines with steel camshafts, or engine damage will occur.

*Only for use on pre-pollution controlled vehicles: Designed for pre-1976 street vehicles or any off-road vehicle.