ARP Main Cap Studs Interfering with Oil Pump - Use Included Bolts on 7M

Engineintermediate✓ OP Confirmed

Problem

After installing ARP main cap studs on a 7M engine, the studs on one main cap interfere with the oil pump, causing a clearance issue that prevents proper assembly.

ARP main cap studs physically interfering with oil pumpClearance issue preventing proper oil pump fitment

Root Cause

The ARP main cap stud kit for the 7M includes 2 bolts specifically intended for the main cap nearest the oil pump, where studs would cause a clearance conflict. The installer used studs on all caps instead of using the included bolts on that specific cap.

Confidence

High confidence — Original poster confirmed this resolved the issue

View Original Thread →Posted August 2020 on SupraForums.com