Chevrolet Performance

Chevrolet Performance 604 Circle Track Engine - 19433604

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All GM 604 Engines are currently on back order

This is a factory sealed crate engine designed for circle track 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.

Engine Specifications:  
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”
Balance: Internal  
Maximum GM Recommended RPM: 5800
Ignition Timing: Base 10 degrees BTDC, 32 degrees total

Engine Includes:
• 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.

$150.00 (Fixed Shipping Cost)