What kind of valve springs does GM sp383 use?
What kind of valve springs does GM sp383 use? Beehive-style valve springs enable great high-rpm performance and durability, allowing the SP383 to rev higher and build more horsepower. † Parts and labor warranty when installed by a GM Dealer or qualified installing independent Service Center (ISC) or when sold over the counter and REPAIRED by a GM Dealer or qualifying ISC. What makes the GM crate SP350 engine unique? The SP350’s unique capability lies in its lightweight aluminium cylinder heads, which feature a valvetrain with beehive style valve springs, similar to the design of the high-revving LS engine family. What...