2 Bolt Mains Studs FORD FE 390 428 Kit Multi 12 Point & #5 Cap Bolts, OEM Big Block Ford BBF blocks

ARP Main Studs Ford FE Big Bock 390 428 ENGINES 

12 POINT Multi Main Bolts & washers & #5 Main Cap using Bolts 

**Bolts are used for the No.5 cap to clear the rear OEM type sumps. As the bolt head will sit flush with the main cap. A stud will protude and hit the oil pan.  

High-Performance Main Studs Kits

ARP Pro Series Main Bolts

ARP Pro Series main bolts are application-specific and rated at 190,000 psi. Designed for use in competition engines, as well as to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.

Perfect upgrade Main Studs for your FE 390 or FE428 rebuild.

Fastener Style:  Studs

Undercut Stud:  No

Head Style:  12 Point

Socket Size: 9/16"

Bolt Size:  1/2"

Fastener Material:  Chromoly

Fastener Color:  Black

Washers Included:   Yes

Windage Tray:  No will not work.

ARP Tensile Strength:  190,000 psi 

Quantity:  Sold as a kit.

Notes:  You must chamfer the bolt holes in the top of the No .5 rear main cap to clear the underhead radius of the bolts. Otherwise the under head radius will interfere with the main cap and give a false torque reading.