ARP Cylinder Head Stud Kit Other Gauge Accessories Fits most 39mm x 65mm

Fits most 39mm x 65mm non-hooked fuel pump application* including (*see notes below):

Base Dwell: 3

These have been tested on multiple chassis' including Nissan S-Chassis with the K24 block

Accuracy: < 1

and timing to produce the most power possible for a given fuel or mixture of fuels

ARP Cylinder Head Stud Kit Other Gauge Accessories Fits most 39mm x 65mmIt 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 uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is placed vertically in special racks and precisely heat treated to 200,000 psi. This procedure ensures complete heat