Grand national turbo headers fit a 3.4?
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Joined: Jan 2009
Posts: 139
Likes: 7
From: Howell, NJ
Car: 94 Camaro
Engine: 3.5 turbo
Transmission: Performabuilt 4l60E
Axle/Gears: Strange rear, 3.42
Grand national turbo headers fit a 3.4?
I was looking at these headers from a buick grand national and realized that they look similar to the 3.4 liter rwd motors exhaust port pattern. The 3.4 motor has two ports that are close to each other and the third port is farther away. The bolt pattern is not correct but could be modified to match up. Also the port shape is different but looks like it might work. Maybe with a little modding these could be used on our motors.
This would open up some options to turbo the 3.4 motor. I was thinking if anyone had a exhaust manifold gasket from a buick GN we could see if these headers could be used.
This would open up some options to turbo the 3.4 motor. I was thinking if anyone had a exhaust manifold gasket from a buick GN we could see if these headers could be used.
Joined: Mar 2006
Posts: 4,370
Likes: 19
Car: 1973 Datsun 240Z/ 1985 S-15 Jimmy
Engine: Turbo LX9/To be decided
Transmission: 5-speed/T-5
Axle/Gears: R200 3.90/7.5" 3.73
Re: Grand national turbo headers fit a 3.4?
They are a lot more different than you think.
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