ARP 135-3701 Head Bolt Kit for CHEVROLET Big Block 12pt ymm_46 7L air cooled engines

7L air cooled engines

Remapping is mandatory

The system is finished with two hand-crafted carbon fibre tailpipes that complement the titanium construction

remapping the ECU is mandatory to prevent potential “check engine light” warning signals

Material: Inconel

ARP 135-3701 Head Bolt Kit for CHEVROLET Big Block 12pt ymm_46 7L air cooled enginesIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, theres not a better stud setup on the market today. For openers, ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat treated to 200, 000 psi. This procedure ensures complete heat