Chevrolet Performance 604, IMCA Sealed, Circle Track Engine
This is a factory sealed crate engine with IMCA Seals, designed for circle track competition. It is legal for use in IMCA competition.
These engines come with a high rise single plane intake manifold, stamped steel valve covers with racing style breathers, and an 8 quart dual kick out oil pan.
Based on the "Fast Burn 385" street engine, this racing crate engine is a great value with it's 1053 forged steel crankshaft, aluminum heads with 2.00"/1.55" valves and hydraulic roller lifters.
The base engine is a Fast Burn 385 with the following parts changes: 8 quart circle track oil pan, special valve covers with breathers, 1.5 ratio aluminum roller rocker arms. Sealed fasteners on the timing cover, intake manifold and cylinder heads.
Power: 400 HP @ 5500 RPM, 400 ft. lbs. of torque @ 4500 RPM
Displacement: 350 CID, 5.7L
Bore x Stroke: 4.00” x 3.48” Compression Ratio: 9.72:1
Recommended Fuel: 92 Octane
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps.
Crankshaft: Forged Steel
Connecting Rods: Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .474” Intake / .510” exhaust
Cam Duration @ .050”: 208 deg. Intake / 221 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: Updated Dual Bolt Pattern Fast Burn Aluminum with beehive springs, 3/8” screw-in rocker studs.
Combustion Chamber: 62cc
Valves: .200” Intake/ 1.55” Exhaust
Rocker Arms: aluminum full roller, 1.5:1 Ratio
Valve Springs: 12625033 LS Beehive, rated for max lift .550”
Maximum GM Recommended RPM: 5800
Ignition Timing: Base 10 degrees BTDC, 32 degrees total
• Fully GM assembled long block
• Black Steel Valve Covers with Breathers
• Oil pump, pick-up and 8 quart oil pan
• 12496822 Eliminator Vortec Intake
• Spark Plugs
• 8” Nodular Iron Harmonic Balancer with 1-11/16” Inertia ring
• Front timing cover
GM Performance Parts Racing Crate Engines are excluded from the limited warranty.
This item ships by truck freight.