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Old 07-15-2026, 06:59 AM
Onestone Onestone is offline
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Join Date: Oct 2025
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Quote:
Originally Posted by TXSTARFIRE View Post
No reason to not reuse them.
Well, 70 year old bolts, no clue if any of the preowners had overtightened them, since they have marks on their heads wich say they have been turned before.

If I have the chance I would prefer new ones, now that I will spend so much money on the engine job anyway.

Isn't there an Fel-Pro set with at least some matching 1/2-13 bolts?

What I need is:
- 1/2-13x2-1/2, 8 pcs
- 1/2-13x4-5/8, 6 pcs
- 1/2-13x4, 4 pcs
- 1/2-13x4 with 3/8-UNF thread on top, 2 pcs

I already tried to find them on Rockauto with the original partnumbers from the master catalogue, with no luck. Same on the Fel-Pro catalogue, looks like FelPro doesn't have single bolts at all, just sets

OR - if any of you can honestly say "just use normal grade 8 bolts, worked fine on my engine the last 20 years", I would get them. The only problem I see here, is that standard grade 8 bolts dont have the thickening below the head, since the holes in the cylinderheads are bigger...