ARP 154-5410 Main Stud Kit for SB FORD 302. with girdle ymm_47 250˝ Thread Size 5/16˝ Fits

250˝ Thread Size 5/16˝ Fits Following Engines:Ford Big-Block FE

CK Pickup 1961

This system fits also on vehicles equipped with Otto particulate filter (OPF)

INSTALLATION INSTRUCTIONS

where the gases from both sides of the engine mix

ARP 154-5410 Main Stud Kit for SB FORD 302. with girdle ymm_47 250˝ Thread Size 5/16˝ FitsSpecifications Socket Size(s) 11 16 hex, 1 2 12pt, 3 16 Allen Material: 8740 Chromoly Kit Type: Stud Main Bolt Style: 2 Bolt Finish: Black Quantity: Kit Kit Instructions Fits Following Engines: 351C Ford Small Block V8 Fits Following Engines: 221 CID Ford Small Block V8 Fits Following Engines: 260 CID Ford Small Block V8 Fits Following Engines: 351 CID Cobra Jet V8 Fits Following Engines: 351M Ford Small Block V8 Fits Following Engines: 5. 4L Ford