ENGINE. SP383 DELUXE ENGINE PACKAGE. COMPLETE WITH CARB AND DISTRIB ETC.

GM Chev SP383 crate engine as per picture and including HEI distributor, leads, Holley 80713 carburetor and GM air gap intake manifold

Chevrolet Performance 383 C.I.D. 435 HP Long Block Crate Engines

The all-new SP383 offers big block performance with a small block price tag! Chevrolet Performance starts with the legendary Fast Burn cylinder heads and the 383 c.i.d. bottom end, to offer an incredible 445 lbs.-ft. of torque at 4,600 rpm with a smooth, linear delivery. The combination of a 3.800 steel crank and a stout .509/.528 lift hydraulic roller camshaft produces 435 hp at 5,600 rpm, making the SP383 the benchmark by which all other 383 c.i.d. small blocks will be measured.

GM's testing was completed using a GM single-plane intake manifold, a 750 cfm Demon mechanical secondary carb, and 1 3/4 primary x 33 length headers with a four collector. A dual-plane intake manifold can be used, but will affect overall peak performance numbers by 15-20 hp.

TECH SPECS for the Chevrolet Performance 383 c.i.d. 435 hp long block crate engine:

* Power: 435 hp at 5,600 rpm, 445 lbs.-ft. of torque at 4,600 rpm
* Displacement: 383 c.i.d.
* Bore x Stroke: 4.00 in. x 3.80 in.
* Compression ratio: 9.6:1
* Recommended fuel: 92 Octane
* Block: Cast iron, one-piece rear seal, 4-bolt main caps
* Crankshaft: 4340 forged steel
* Connecting rods: HD powdered metal steel
* Pistons: Hypereutectic aluminum
* Camshaft: Steel hydraulic roller tappet
* Cam lift: .509 in. intake / .528 in. exhaust
* Cam duration @ .050 in.: 222 deg. intake / 230 deg. exhaust
* Lobe separation: 112 degree
* Cylinder heads: GM Fast Burn aluminum dual bolt pattern, 3/8 in. screw-in rocker studs
* Combustion chamber: 62cc
* Valves: .200 in. intake / 1.55 in. exhaust
* Rocker arms: Aluminum roller, 1.5:1 ratio
* Valve springs: 12625033
* Balance: External
* Maximum GM recommended RPM: 6000
* Ignition timing: Base 10 degrees BTDC, 36 degrees total at 4,000 rpm
* Chevrolet Performance recommended converter stall 2,400-2,800

Engine Includes:

* Fully GM assembled long block
* Black aluminum valve covers
* GM Eliminator single-plane Vortec intake manifold
* 770 cfm Chevrolet Performance carb
* Oil pump, pickup and oil pan
* 12 3/4 in. auto trans flexplate
* 8 in. harmonic balancer
* Front timing cover
* Cast iron long water pump
* HEI distributor, ignition wires, and spark plugs
* Oil filter and adapter
* Passenger side RH oil dipstick and tube