Single Head / Main Stud Valve seat Ideal for high horsepower street

Ideal for high horsepower street and drag builds

Part #: PH 4085     P/Steering: Yes Gasket: DSF 18 Air Con: Yes Primary Pipe: 1⅞" (48mm) Oxy Sen: N/A Secondary Pipe: - E

-12AN ORB Inlet/Outlet Ports

5mm bore and the 100mm stroker crank = 2297cc / 300cc increase

Single Head / Main Stud Valve seat Ideal for high horsepower street1 2" Thread X 5. 750" OAL Part Number : ARAR5. 750 1LB It 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, there's not a better stud setup on the market today. For openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000 alloy that are rated far superior to "aircraft" quality alloy steels. Secondly, each stud is placed