4g61t.org

Hey guys i was woundering if there was much diffrance if any between the 1g and the 2g 4g63t heads and does it matter if there from a 6bolt of 7bolt? is the intake manifold and exhuast manifold bigger on the 2g's thanks for the help

_________________
Turboed FwD laser
90 Dodge colt 4g63t swap ,680cc injectors, Greddy Profec-b Spec ll Boost controller, Greddy full auto turbo timer, Apex'i S-afc ll, Front mount intercooler, 2.5 inch piping, 3" GM MAF/With MAFT

A 2g head is completely different than a 1g head when it comes to the intake ports. The intake ports on a 2g head are way smaller than a 1g, but the exhaust ports are the same. If you wanted to put a 2g head on a 1g you'd need a 2g intake manifold, or you'd have to port the 2g head to match the 1g intake manifold runners. Then you'd have to port the throttle body hole on the intake manifold to match the 1g throttle body, which is larger than a 2g throttle body.

The 2g heads also use a smaller diameter head stud than a 1g head, so you'd have to drill out your block to accept those. There are a lot of other little differences such as the water neck/thermostat housing and the water pipe going to the water pump. I'm sure there are a lot of other things i'm forgetting too.

_________________
91 GSX - 511fwhp and 352 lb/ft 25psi 110 octane, 7.68 @ 95.9mph 1/8th 21psi 91 octane, 11.93 @ 112.9mph, 117.7mph best trap speed, 20psi 91 octane
98 Volvo S70 T5 - DD

http://www.facebook.com/captaintonus

So it wouldnt be worth the time to make it work wright i just had a good 6 bolt block laying around and i found a local boy trying to sell a 99 gst head for around 75 has 3000 miles on rebuild was just going to throw it togeather to sell

_________________
Turboed FwD laser
90 Dodge colt 4g63t swap ,680cc injectors, Greddy Profec-b Spec ll Boost controller, Greddy full auto turbo timer, Apex'i S-afc ll, Front mount intercooler, 2.5 inch piping, 3" GM MAF/With MAFT

Yeah, it's not exactly a drop-in affair. It would be quite time consuming.

_________________
91 GSX - 511fwhp and 352 lb/ft 25psi 110 octane, 7.68 @ 95.9mph 1/8th 21psi 91 octane, 11.93 @ 112.9mph, 117.7mph best trap speed, 20psi 91 octane
98 Volvo S70 T5 - DD

http://www.facebook.com/captaintonus

I might need that head if you don't take it. You could make a little bit of money off of it but only if shipping wasn't outrageous. PM if your willing to work out something

-bit