LT1 Engine Build - Small-Block 2.0
Besides adding the readily apparent Comp Cams 1.6:1 rocker arms, GES beefs up the valvetrain of its ported LT1 heads by increasing the rocker stud size to 7/16-inch. "We've all seen 3/8-inch studs break," says Chad Golen. He maintains that pushrod guideplates are also a must: "Self-aligning rockers can pop off."
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