GM Performance Parts Valve Lock, 10 Degree, 11/32" Valve Stem, Single Groove, Steel, Black, Set of 16 (New Style 604 Crate) SKU GMP-19302868 $161.08 Quantity discounts available QuantityPrice (0)No Reviews yet Number of Pieces Item Custom Price Quantity -+ Add to Cart Details Legally upgrade your 604 crate engine with this valve lock set. Valve locks fit beehive springs. Sold as a complete set of 16 half locks (8 pairs) wh... Details Back DetailsLegally upgrade your 604 crate engine with this valve lock set. Valve locks fit beehive springs. Sold as a complete set of 16 half locks (8 pairs) which is for 1 cylinder head. Ratings & ReviewsNo reviews availableBe the first to Write a Review