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Your cart is empty.Stage 8 1 inch Locking Header Bolt kit for Ford Small Block features locking header bolts for Ford small blocks260 - 351 cu/inches including 351W and 5.0 liter using 1 inch bolts. It includes (16 ea) 3/8-16 X 1 inch 6 point bolts with double hex head (includes 3/16 inch recessed allen head) and 16 each locking retainers and clips.
Riley
2025-08-19 15:22:44
3/4 inch header bolts were too short on SBF.The headers and thick gasket required a longer bolt. 1 inch worked perfect. Fast shipping!!
Customer
2025-08-18 17:11:43
These are the answer to leaking headers. Use a good gasket and these, torque the once, lock and forget about it. Don’t have to touch them again
Nicolas S Kitchen
2025-07-07 18:00:02
Worked great on my SBF TRI-Y headers on AFR185 heads no real issues.
Bobby Geer
2025-06-21 12:58:13
better than most locking header bolts ive used. Wasnt able to use the locks on a header bolt though.... this is because the half moom washer doesnt always hit in right spot. all in all i like them
Matthew V.
2025-05-29 15:39:56
After losing half of my arp bolts, I swapped these in.. After I stopped swearing, I'm happy to have done it.I do wish they were 12 point, with the Allen drive, but I guess you can't have everything.
Jon
2025-05-18 17:56:22
Get the right bolts (these!). Get the right gaskets. And your new headers won't leak! Something that's extremely useful during install with these is that you can use the hex pattern on the outside of the bolt head with you socket/wrench....OR you can use the hex pattern inside the head with an allen key. It just gives you another option when your shorties limit your space.
Customer
2025-02-12 14:49:25
They do not fit on a 1990 5.0 mustang.should not be recommended with other purchase
Michael
2025-01-09 19:29:33
Worked fine
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