Correct set of oil pan bolts for all Oldsmobile 307 / 330 / 350 / 400 / 403 / 455 engines. its a variety of 1964-79 GM models equipped with Olds engines including the popular 1977-80 Firebird and Trans Am 403ci equipped...
New OEM valve cover bolts with NL on head. These were used on all Ram Air IV, H/O , and Super Duty engines. Bolts have a 5/16? head by 18 thread, and are 21/32? long. These reproduction valve cover bolts are for use on all...