Q on stock LT1 heads

[black hawk]

stock 1995 LT1 heads. what is the thread size and length for the exhaust manifold bolts? i need to get ones that lock. __________________

[PipesTA]

They're 3/8-16. Stock are 3/4" length. I'm running 1" long ARP's and haven't had any problems with them. You could also look into some Stage8 locking bolts.

[black hawk]

i was looking at these ones. any pros Vs. cons?
http://store.summitracing.com/largeimage.asp?part=PHP-21100&Prod=Percy%27s+Split+Lock+Friction+Lock+Header+Col lector+Bolts&img=php-20100_w.jpg
http://store.summitracing.com/largeimage.asp?part=PHP-21100&Prod=Percy%27s+Split+Lock+Friction+Lock+Header+Col lector+Bolts&img=php-20100_w.jpg

[PipesTA]

I think those are going to be easier to lock VS the retainer style from Stage 8.

[black hawk]

that's what i was thinking too

[PipesTA]

I'm running these and they've never backed out.

http://store.summitracing.com/partdetail.asp?part=ARP-400-1210

[black hawk]

I'm running these and they've never backed out.

http://store.summitracing.com/partdetail.asp?part=ARP-400-1210

a guy i know in the carclub who is super knowledgeable on the LT1 called and suggested them