ARP fasteners Single Head / Main Stud ARAR4.750-1LB Boosted by Aeroflow Each flange is precision cut

Each flange is precision cut to reduce warping

Each manifold is finished with a black enamel coat for shipping purposes only

Our ball bearing design reduces the required amount of oil to provide adequate lubrication

GM LS1 with T56 ManualTransmission Wiring Harness

5mm Spark Plug Wire Sets

ARP fasteners Single Head / Main Stud ARAR4.750-1LB Boosted by Aeroflow Each flange is precision cutSingle Head Main Stud1 2" Thread X 4. 750" OAL Brand: ARP Part Number: ARAR4. 750 1LB Description: 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