ZZ520: The Ultimate Chevy 350 Crate Engine?
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Comp’s Endure-X mechanical roller lifter (PN 888-16) has an extra oiling groove for low-rpm durability, and a heavy-duty inner-bearing race that distributes the load over a greater area. The 0.300-inch–taller body allows it to fit in late-model roller-cam blocks. View Related Article
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