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7/16 Exhaust Stud Kit for 7M Cylinder Head
7/16 Exhaust Stud Kit for 7M Cylinder Head

Our Price: $79.99
Part Number: 7/16 Exhaust Stud Kit

Availability:: Usually Ships in 2 to 3 Business Days
Product Code: DM139

Exhaust Stud Kit Type*:

7/16 Exhaust Stud Kit for 7M Cylinder Head.
Most of you know that there is a big problem when you go to replace a manifold, and the studs strip before you get even close to 29ft/lbs. Some people have them start to back out on their own creating a big exhaust leak. I have seen engines where a stud is just completely missing So I came up with a fix/upgrade. We go up to a 7/16 stud with coarse thread on the head side and fine on the manifold side with a 7/16 helicoil in the head. The coarse side has larger diameter threads that will not strip out of the head. The fine side lets you get accurate torque like stock. We use metal locknuts like stock too. I have had helicoils of the origional stud size pull out because the aluminum gets brittle and weak after all those years of heat cycles.

Kit includes: Eight helicoils (one extra just in case), seven studs, seven stover lock nuts, one 29/64 drill bit (standard length), a helicoil tap, a helicoil insertion tool, one tap holder tool, and some antiseize.

We added an option to purchase a new set of studs and nuts without the other items in the kit, for people who are rebuilding an engine that was previously upgraded to 7/16" studs.

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