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Quickly and easily step down the size of an NPT port with the NPT reducer
Will Not fit factory intake manifold will require use of 10mm spacers
These modular mounts can easily be flipped and reinstalled into different threaded holes on the fuel rail itself allowing it to suit GM LS1
AF4250-5310
45° ORB to Male AN Full Flow Adapter -4 ORB to -4AN 902-04S AF902-04S With Jam Nut
Single Head / Main Stud ARAR6.120-1LB Fittings Quickly and easily step downSingle Head Main Stud1 2" Thread X 6. 120" OAL ARAR6. 120 1LB AR6. 120 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,
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