BBC Install: Head bolst interfere with header flange?
Thread Starter
Melting Slicks
Joined: Sep 2001
Posts: 2,068
Likes: 1
From: Gig Harbor WA
BBC Install: Head bolst interfere with header flange?
Could I be this cursed?
I started installing the new motor.
It's been together before, but now it seemd the flange can't clear the head bolts, but maybe they need to bre turned
I started installing the new motor.
It's been together before, but now it seemd the flange can't clear the head bolts, but maybe they need to bre turned
Melting Slicks
Joined: Feb 2002
Posts: 2,298
Likes: 1
From: Sodertalje/Sweden
Re: BBC Install: Head bolst interfere with header flange? (Evan Ginsberg)
When i switched to ARP bolts i had to grind the flange to make it fit.Theres more grinding if you use Studs.. :smash: :cheers:
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Re: BBC Install: Head bolst interfere with header flange? (Evan Ginsberg)
I've never heard that before...I'm using Hooker Super Comps...2.125" tubes, and no problems with the bolts and flanges....are u using header bolts or std head 3/8" bolts?
Race Director
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
Re: BBC Install: Head bolst interfere with header flange? (GDaina)
Same thing with my edelbrock aluminum heads. The deck is thicker on many aftermarket heads, especially aluminum and require clearencing on the header flange.
Thread Starter
Melting Slicks
Joined: Sep 2001
Posts: 2,068
Likes: 1
From: Gig Harbor WA
Re: BBC Install: Head bolst interfere with header flange? (zwede)
THe motor has been rebuilt, he must have used different head bolts.
Thes are stock heads and super comp sidepipe headers.
the bolt corners point toward the head and I was thinking "if I could just turn them so the flat side of the bolt was parallel to the head then the flange would slip in. But it doesn't seem like a good Idea to start turning head bolts.
So which would be better to clearence?
the header flange (very little material there), or the head bolt. even if it lost a corner, it would still turn.
I haven't touched this car in a year, so I've been off this board. Ive been building a C4 racecar but the car is all custom fab and the C4 boards haven't been that helpful.
link to pics below in sig
Evan
C4R, Vette Viper Challenge car http://community.webshots.com/user/wavslav
Thes are stock heads and super comp sidepipe headers.
the bolt corners point toward the head and I was thinking "if I could just turn them so the flat side of the bolt was parallel to the head then the flange would slip in. But it doesn't seem like a good Idea to start turning head bolts.
So which would be better to clearence?
the header flange (very little material there), or the head bolt. even if it lost a corner, it would still turn.
I haven't touched this car in a year, so I've been off this board. Ive been building a C4 racecar but the car is all custom fab and the C4 boards haven't been that helpful.
link to pics below in sig
Evan
C4R, Vette Viper Challenge car http://community.webshots.com/user/wavslav
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Re: BBC Install: Head bolst interfere with header flange? (GDaina)
Daaaaaaah.... :banghead: :banghead: :banghead: I should read what is written.... :banghead: :banghead: :banghead: ....had to grind the flange as well to clear the head bolts.....
