Pro-Gram 4 Bolt Billet Main Caps!

[Turbo3Iroc]

Kelly,
Here is the ARP hardware that most all of us used on the Pro-gram outer bolts.
M10X1.5x50uhl ARP # 662-1007 Bolts and washers. Blisterpak 5 to pack. You will need 2 packs, and you'll have some spares.
I have found on some blocks that you will need to double up on washers even after using bottoming tap. Careful with this as the bolts will be real close to bottoming out. One block was tapped deep enough while the other wasn't, so you need to check it.
Obviously also need to drill and tap block for the outer #4 cap, as the balance shaft cage stopped at #3.
Todd

Thanks Todd. I'll pass that on to my machinist.

[Dave]

ARP-AM2725-2B is the PN for a 69.2mm OAL stud ARP2000. 1.500"/1.250" thread lengths. In case anyone wanted to know. This is the closest stud length ARP sells off the shelf.