SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: doug olah on July 05, 2016, 05:12:27 AM

Title: BBC head bolts
Post by: doug olah on July 05, 2016, 05:12:27 AM

Need Advice on head bolts. I have a 454 V1 with aluminum heads. Bought headers and they hit the bottom 4 head bolts. Their about a 1/4 inch too high. So I need to change to a lower profile old type hex bolt. Any advice? I believe I still need to have washers under the bolt.
Anybody have this problem?

thanks in advance
Doug

Title: Re: BBC head bolts
Post by: doug olah on July 05, 2016, 06:58:06 AM

Dan'l did you have this problem with aluminum heads?

thanks!!!

Title: Re: BBC head bolts
Post by: mash on it on July 05, 2016, 08:57:38 AM

Quote from: doug olah on July 05, 2016, 06:58:06 AM

Dan'l did you have this problem with aluminum heads?

thanks!!!

No- logs and snails cleared fine

Yeah, needs the hardened washers.
ARP bolts should fit, pending whats in there now.

Dan'l

Title: Re: BBC head bolts
Post by: Six-Oh-Nine on July 15, 2016, 06:54:56 PM

Gonna need to notch the headers a little bit... It will not be as much as you think... It's typically the corner of the bolt that gets in the way.


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