Also intriguing is a complete '96 to '02 L31 truck and van 350 Vortec engine (PN 12530282). This engine already has the right heads, plus it uses a hydraulic roller cam.

The GM Performance Parts PN 12499529 350/290hp engine used in this test is based on a GM Goodwrench long-block with a sturdy 4-bolt main bottom end and production-spec cast aluminum dished pistons.

In this tech article HOT ROD shows you how to hop-up a Chevy 350 engine equipped with the ... If I use a '96 to '02 truck and van engine ... on marine versions of the L31 Vortec engines.

The 4.2-liter Vortec came and went with the GMT360 platform encompassing the 2002 to 2009 model years. While GM-designed, the engine's popularity earned it a place in other manufacturers' lineups.

When the Vortec heads were released in '96 ... water brake engine dyno, the Vortec TPI conversion twisted the ... a new and unique intake manifold to mate the Vortec heads to the tuned-port 350.

General Motors' LS and Vortec V8 engines are very similar, to the point that some people consider them one and the same. There are slight differences, though.