Do I need to use locking header bolts for my MAC Header install or should I use the bolts with the kit ?
The cost is not an issue, I just do not want them coming loose.
I however do not want to spend the ~$50.00 on ebay for the latest "whiz-bang" locking bolts if the supplied ones will work fine.
I'm going with the Percy's Carbon header gaskets.

 

I used ARP bolts.

There are those that use the locking ones.

I would probably not use the ones in the kit.

Search around the board a bit. There is ALOT of header related posts.

 

A lot of people like the locking bolts but i just used mr gasket bolts and high temp loctite. Have not had a problem with them backing out.

 

i got Breslin bolts. They were like 60ish dollars or so. I believe they are stainless steel, and they are nice and easy to use, unlike the stage 8 ones. Ive had no problems with them thus far. Put them in, locked em, and left em that way.

 

I run the same bolts....I never use anything else

 

i just ordered the same bolts. I wanted something i could tighten and never touch again but it cost me like 86.00 i got the 3/8 x 1'00. I hope they are worth the money.