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96 Gsx Awd
03-17-2006, 07:05 PM
i have a 7bolt motor in my car but i am looking to buy a 6bolt block here soon but i dont know if i should keep my 7bolt head or just get a 6bolt one. let me know what you guys think . thank you
Super Bleeder!!
03-17-2006, 07:59 PM
7 bolt heads are good :) there is a ton of information to go over on this topic, like port sizes and flow vs velocity etc.

but yes, i would keep the head you have.
slowbubblecar
03-19-2006, 04:26 PM
I would ditch it and go with a 6 bolt one. I heard the 6 bolt ones flow a lot better in factory form. Make sure you are able to get a good one though. I swapped 3 "good" 6 bolt heads on my car last spring and had to keep switching because they gave me bad compression results.
NOT THE BLUE LAMPSHADE
03-19-2006, 04:44 PM
I have a good 6 bolt head for sale, $200, pm me if youre interested and want to come out and get it

I also have my block for sale, but don't have the tools or anything to get it out of the car, $200

763 6077959 call if you want too

Tom
Kracka
03-19-2006, 06:41 PM
A 1G 7-bolt head is superior to a 1G 6-bolt head.
Kracka
03-19-2006, 06:41 PM
I would ditch it and go with a 6 bolt one. I heard the 6 bolt ones flow a lot better in factory form.
Wrong.
slowbubblecar
03-19-2006, 08:01 PM
I am assuming he has a 2g 7 bolt head since his car is a 96, so wouldn't a 6 bolt one perform better? That is what I was looking at.
Kracka
03-19-2006, 10:52 PM
I am assuming he has a 2g 7 bolt head since his car is a 96, so wouldn't a 6 bolt one perform better? That is what I was looking at.
Good call, a 1G 6-bolt head is better than a 2G head. The 2G head is better suited to be ported though once you decide to get crazy with stuff.
Super Bleeder!!
03-19-2006, 10:54 PM
depends on what you define as better. if all out drag is the goal, maybe. if drivability and part throttle are your thing, stick with the 2g.

also worth noting is evo heads have even smaller ports than 2g heads, do they seem to have trouble making power?
slowbubblecar
03-20-2006, 11:54 AM
I don't have any problems with part throttle or driveability and I have a 1g head on my 2g with a 6 bolt. I didn't even notice the difference and my head is ported, has springs and retainers and cams.

I almost bought mikes crazy ported 2g head a long time ago.