4 Port Intake on a 6 Port motor?
Thread Starter
Joined: Sep 2003
Posts: 7,252
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From: Spring Hill TN 37174
4 Port Intake on a 6 Port motor?
I feel like a newb....
Ok I have a 6 port 13B out of a 2nd gen in my 85 gs.... I found a carb and manifold for a 4 PORT 13B out of a 70's cosmo for dirt cheap....
Q- can i use the 6 port motor like a 4 port by using this set-up?
Q- will this manifold bolt up?
Q- Will the car run ok with the 5th and 6th basically blocked off...
Q- wouldn't this be perfect for a blowthrough?
Thx a lot..
trevor
Ok I have a 6 port 13B out of a 2nd gen in my 85 gs.... I found a carb and manifold for a 4 PORT 13B out of a 70's cosmo for dirt cheap....
Q- can i use the 6 port motor like a 4 port by using this set-up?
Q- will this manifold bolt up?
Q- Will the car run ok with the 5th and 6th basically blocked off...
Q- wouldn't this be perfect for a blowthrough?
Thx a lot..
trevor
Admitted Sevenaholic
Joined: Feb 2001
Posts: 1,910
Likes: 0
From: Ashland, OH
some people have modified the T2 4 port manifold to fit the 6 port engines.
I think the 70's had something blocking the later manifolds so no clue
bolt pattern should be the same
if you grind out the 4 port intake it will blend into the 6 ports.
not the perfect blow thru.
I think the 70's had something blocking the later manifolds so no clue
bolt pattern should be the same
if you grind out the 4 port intake it will blend into the 6 ports.
not the perfect blow thru.
The 70's 4 port bolt pattern is way different. Add to that the fact that they had really small primary intake runners. I wouldn't suggest it. Yes it can be adapted but I don't think you are going to get the performance out of it that you want.
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