LS3/L92 Rectangle-Port Cylinder Heads Test - The Even More Ultimate LS Cylinder Head Test - Speed Parts Testing

Loyal HRM readers will no doubt remember our "Ultimate Chevy LS Cylinder Head Test" in the Dec. '10 issue in which we tested 11 different LS1/LS6 cathedral-port-style heads. In this issue we're doing the same thing, but with LS3/L92 rectangular-port heads.Loyal HRM readers will no doubt remember our "Ultimate Chevy LS Cylinder Head Test" in the Dec. '10 issue in which we tested 11 different LS1/LS6 cathedral-port-style heads. In this issue we're doing the same thing, but with LS3/L92 rectangular-port heads. Included are dedicated castings from Mast Motorsports and Procomp Motorsport, five different CNC-ported stock castings from various manufacturers, and a baseline test of stock LS3 heads. It should not be overlooked that our test motor produced nearly 700 hp with those OE, as-cast cylinder heads.


Photo Gallery: LS3/L92 Rectangle-Port Cylinder Heads Test - 468ci Engine - Hot Rod Magazine

Photo Gallery: LS3/L92 Rectangle-Port Cylinder Heads Test - 468ci Engine - Hot Rod Magazine


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