Chevrolet Performance SP350 385 HP Crate Engines

Chevrolet Performance SP350 385 HO crate engines use the proven ZZ4 short block and ads to it the Fast Burn aluminum cylinder heads for 375 value packed horsepower. With value in mind, these crate engines use stamped steel rocker arms and the same ZZ4 camshaft that powers thousands of hot rods.

The SP350 385 HP crate engines are an excellent choice for the basis of a custom engine. They are strong forged steel crankshaft and forged powdered metal connecting rods have been proven to 500 horsepower—and its Fast Burn cylinder heads are hungry for a little more cam.

Value priced small-block power, great durability, easy power upgrades—the SP350 385 HP crate engine is all that and more from the "more than just power" people at Chevrolet Performance.

Specifications:

* Power: 385 hp @ 5600 rpm, 405 lbs.-ft. of torque @ 3600 rpm
* Displacement: 350 c.i.d., 5.7L
* Bore x Stroke: 4.00 in. x 3.48 in.
* Compression Ratio: 9.6:1
* Recommended Fuel: 92 Octane
* Block: cast iron, one-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 in. intake/.510 in. exhaust
* Cam Duration @ .050 in.: 208 deg. intake/221 deg. exhaust
* Lobe Separation: 112 degree
* Cylinder Heads: dual bolt pattern Fast Burn aluminum, 3/8 in. screw-in rocker studs
* Combustion Chamber: 62cc
* Valves: .200 in. intake/1.55 in. exhaust
* Rocker Arms: stamped steel, 1.5:1 Ratio
* Valve Springs: LS Beehive 12625033
* Balance: external
* Maximum GM recommended rpm: 5800
* GM recommended torque converter: 3000-3400 Stall
* Ignition Timing: base 10 degrees BTDC, 36 degrees total @ 4000 rpm

Engine includes:

* Fully GM assembled long block
* Polished aluminum valve covers
* Oil pump, pick-up and oil pan
* Aluminum performance intake
* HEI distributor and spark plugs
* 12 3/4 in. auto trans flexplate
* 8 in. harmonic balancer
* Front timing cover
* Cast-iron long water pump
* Oil filter and adapter
* Passenger side RH oil dipstick and tube Show Less