Sep 12, 2006 #1 B BAGN God Bless America!!! Joined Feb 8, 2004 Messages 1,155 I need Part # for ARP bolts/studs for 4.1 block w/3.8 heads. Any info would be great.
Sep 12, 2006 #2 4 49-blues Active Member Joined May 30, 2001 Messages 7,628 I think the head studs are #123-4203 for iron heads- you can get them off arp website and summit usually has the best price.
I think the head studs are #123-4203 for iron heads- you can get them off arp website and summit usually has the best price.