Chevrolet Performance 17800568 Cylinder Head Bolt Kit, LS3/4

Chevrolet Performance cylinder head bolts are built to exact tolerance and extreme durability for high-performance applications and are the best choice for your GM LS series engine. For GM LS series generation iii and iv engines, january 2004 and later. Chromoly cylinder head bolts. Hex head. Cadmium plated finish. Includes (10) 100 mm long bolts and (5) 45 mm long bolts. The second design uses 2 lengths, 5 mm shorter than the previous design. Sold as a set (enough for one cylinder head)