Chevrolet Performance 350 C.I.D. 9.4:1 Truck Long Block Crate Engines 19432779

Built for GM trucks and SUVs, this new Chevrolet Performance 350 long block (part 19432779) is a 5.7L, 350 cubic inch small-block carrying cast-iron block and cylinder heads at a 9.4:1 compression ratio, with a hydraulic roller camshaft chosen for valvetrain life under work-truck duty cycles.

A work-focused long block

This engine ships fully assembled with the oil pan, valve covers, and timing cover installed along with the harmonic balancer, and it carries a single-piece rear main seal and internal engine balance. Missing from the box are the intake manifold, throttle body, fuel injectors, and distributor, so GM leaves those choices to match your truck's existing fuel and ignition setup.

Where it fits

This long block replaces GM trucks and SUVs originally built around a 5.7L, 350 cubic inch small-block, and it pairs with OEM parts as readily as it does with aftermarket carburetors and ignition. Plan on regular 87 to 91 octane pump gasoline for daily running, and check local emissions rules before putting it on the road, since it is not certified for that purpose.

Before you order

Do I still need an intake manifold and distributor? Yes, both are excluded from this long block and must be sourced separately, along with a carburetor or fuel injection system to match. Is this covered under warranty? Coverage terms are set by the supplier you buy from, so ask before you commit. What octane does it need? Standard 87 to 91 octane gasoline is fine for this compression ratio.

Specifications