I see this question come up far too often on Dodge forums.
As many of you know, the ARP main studs listed for the 2.2
correctly fit only the early non-common blocks.
Currently, ARP
does not have a listing in their catalog for common block applications, but they certainly do have the correct studs available if you know what to order.
These studs will fit any variety of 2.2/ 2.5 common block engines. If using balance shafts, some very slight massaging will need to be done on the aluminum frame at main cap #2 & 3. This will in no way effect strength of the balance shaft frame.
At this time, cost is under $70/set less shipping.
Here are the part #'s
4) ATP 3.350-1LB (11x1.5x7/16-20 stud 1&5 main caps)
6) ATP 3.750-1LB ( 11x1.5x7/16-20 stud 2,3,4, main caps)
10) APN 1116 (7/16-20 hex main nut)
10) APW 1316N (7/16 washer)
The sales rep I talked to in the past has made a notation of it for future reference, but if you do place an order, it wouldn't hurt to ask them to pkg. these part #'s under one part # and list them in future catalogs.
Hopefully our suppliers of turbo Dodge parts will take note of this and finally stock these parts. If not, I have an account set up at ARP and could order these, or any other ARP hardware for you for a nominal charge.
You can reach me at:
Omnishelby@yahoo.com
Todd Nelson - AKA 4 L-bodies
MPLS, MN