Hey y'all,
I'm doing my manifold bolts and I'm wondering if anyone knows of an OEM type bolt set that is hardened. I'd like to keep the heat shields but there's no way I'm going with stock bolts. I'll ditch the shields and use regular Grade 8 bolts if I have to but I'd rather not. Moderate Googling and searching this forum found nothing. TIA

 

I just had two sets of these Dorman Exhaust Manifold bolt sets delivered a few days ago, that's about the best set out there for us. This bolt set is for the 4.7 engine, not sure if the 3.7 uses the same bolts, minus two of course.

These Dorman bolts are Grade 10.9.

 

The model-year 2005 3.7 and 4.7 use the same bolt and nut part#, from the 2005 parts list. The 4.7 also uses 2 stud-lengths, while the 3.7 uses one (which matches the part# of one of the 4.7 stud lengths).

 

Ah, I see. I had seen these listed in various places but somehow missed the grade. I see now they are 10.9 so that'll do! Rockauto has them for $17 btw. Thanks y'all.

 

...plus shipping.

BTW, there is a Rockauto discount code thread here on DF, I've been updating the last post with current codes since 2014.