Especially if you use the longer case bolts, that'll make a world of difference. 10-15 threads can hold 20-25ft-lb a whole lot better than 4-5 threads which is all the FP bolts really give you. I never really understood why they do that. They drill that manifold deep and only use 1/4-1/3 of the available threads.
Surfriding Striped Manifold Factory b 62t helicoils?
- Thread starter shaunsteezy
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