so iwill be replacing the gaskets on my longtube headers soon ,wel next day or so.
i was thinking go i got aluminum gaskets for Sure Seal i think is the brand and i got bolt from APD? i think (as u can see im not great with brands ) anyway the bolt came with nomal washer but i also went and bought some lock waashers what to yall think of locking them doown with lock tite HD and lock-nuts or would i risk striping the threds and being forever screwed
fyi the truck is a 1991 F-250 supercab 8ft 4WD 351w

 

This style works good…
STAGE 8 LOCKING HEADER BOLTS from STAGE 8 LOCKING FASTENERS | RaceIndustry.com

Not cheap…

You may get away with blue loctite… red may work too good. Headers have always been a real pain to keep tight. Those with heavy flanges seem to do better at staying tight than the el cheapo versions…

 

i got the red locktite those maybe the next step there is also some other kinda bolt i saw but without the lil flap thing when i tightn the Hex inside the bolt it flanges outs to hole inplace

 

Don't use lock-tite. Get a set of the Stage 8 locking header bolts and a good gasket. I recommend Remflex as they are extra thick and compress well to seal any imperfections. I tried the dead soft aluminum ones and they leaked like no other. Then when you assemble everything use anti-seize on the bolts so you can take things out again if you need to.

 

What Evan said times a million use anti seize. Do not use
loc-tite.

 

NEVER use lock-tote, ALWAYS use anti-seeze

Stage 8 lock bolts as well

 

Take your header bolts, drill the heads, and grab some safety wire and a set of safety wire pliers and safety them. I never have had them back out since.