12520270 - GM Goodwrench 1987-95 5.7L 350 Truck Engine

Small Block Chevy V8
Power & Performance

Applications
1987-95 trucks and vans (TBI)

Specifications

Block: 1986-Up 4-bolt main (8600lb GVW), 1-piece crankshaft seal (no mechanical fuel pump provision)

Connecting rods: powdered metal

Pistons: dished hypereutectic

Compression ratio: 8.75:1

Oil pump: high-volume

Timing chain: Morse link-type

Camshaft: flat tappet hydraulic (.382''/.402'' lift, 165.9°/174.8° at .050'' duration, and 111.9° lobe separation angle)

Cylinder heads: 76cc chamber, 1.94''/1.50'' valves, swirl port intake, center bolt valve cover, and 7-bolt exhaust flange. These are not performance heads. They are high-swirl intended for good low end torque and fuel economy. The intake runner is restrictive because it has a ramp cast into the bottom of the bowl.

Rated at 190 horsepower, 300 ft/lbs TQ when used with OE induction components

Engine includes:

4-quart oil pan (5 with filter)

Timing cover

8'' balancer

Valve covers

Warranty Information