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01GTtoCobra · 02-17-2006, 01:55 PM

Hey budy.

Well I did the same thing. I have an 01 GT vert auto. Bought some 01 Cobra heads off e-bay for about that price. Originally thought it would be an easy swap - Don't do it. Get a blower! Spend the extra cash and get your HP up in the high 300's. The cobra heads and associated swap won't even come close. You need uppper/lower cobra manifold and intake - sometimes you can find these on e-bay with all the hook ups -fuel rain and injectors. Got mine from e-bay brand new. You will need the get the stock exhause manifolds but that's its. Everything else on the exhause bolts right up.

Basically the crapy part is all the little stuff you will need. THe engin wiring harness is the biggest problem! YOu can pay a ton of money form the dealer or just get some pig tails and splice them in. You will need new ignition coils because the stock GTs don't fit. You will need to lengthen your existing GT harness to fit the new coils and then install the pig tails for the injectors because the GTs are too different - although for a while I had them pushed on so I could get the motor running. You will need a cobra alternator, and (not sure what it is called) but manifold cooling tube. You will need to get the cobra thermostadt housing and thermostade because you now have extra openins you have to attached to the cooling system. Don't forget the Cobra heads have a cooling tube attached to them that needs to go to the heater. Forgot those and had to plug the holes and rerout the heater hose. You WILL need a dyno tune - because it will run like crap. Went to Shawn at SoCal and he fixed the idle and top end and have an appoitment on MOnday to try to fix the off idle to 2000 range - really crappy in that range. However it is all mechanically good and screams at top end - will smoke stock GTs and 05 GTs (stock).

Too many other things to go on here - if you have some questions shoot me an e-mail at jfawcett2@cox.net and I can tell you more of what you need to do if you serisouly want to do this. I did it because my stock crapy heads kept blowing the spark plug and the dealer wanted 3K just to replace on head. So far the whole expense has costed me about 2500 to 3K. Maybe a little less. So for that money, and if you stock heads are in good conditions, buy a blower! Again if you want to do this you might want to e-mail me because there are a LOT of small things to make sure you check! I'm done expect for the last (hopefully) dyno tune to get everything running good.

02-17-2006, 01:55 PM	#15 (permalink)
01GTtoCobra Junior Member Join Date: Dec 2005 Posts: 4	Hey budy. Well I did the same thing. I have an 01 GT vert auto. Bought some 01 Cobra heads off e-bay for about that price. Originally thought it would be an easy swap - Don't do it. Get a blower! Spend the extra cash and get your HP up in the high 300's. The cobra heads and associated swap won't even come close. You need uppper/lower cobra manifold and intake - sometimes you can find these on e-bay with all the hook ups -fuel rain and injectors. Got mine from e-bay brand new. You will need the get the stock exhause manifolds but that's its. Everything else on the exhause bolts right up. Basically the crapy part is all the little stuff you will need. THe engin wiring harness is the biggest problem! YOu can pay a ton of money form the dealer or just get some pig tails and splice them in. You will need new ignition coils because the stock GTs don't fit. You will need to lengthen your existing GT harness to fit the new coils and then install the pig tails for the injectors because the GTs are too different - although for a while I had them pushed on so I could get the motor running. You will need a cobra alternator, and (not sure what it is called) but manifold cooling tube. You will need to get the cobra thermostadt housing and thermostade because you now have extra openins you have to attached to the cooling system. Don't forget the Cobra heads have a cooling tube attached to them that needs to go to the heater. Forgot those and had to plug the holes and rerout the heater hose. You WILL need a dyno tune - because it will run like crap. Went to Shawn at SoCal and he fixed the idle and top end and have an appoitment on MOnday to try to fix the off idle to 2000 range - really crappy in that range. However it is all mechanically good and screams at top end - will smoke stock GTs and 05 GTs (stock). Too many other things to go on here - if you have some questions shoot me an e-mail at jfawcett2@cox.net and I can tell you more of what you need to do if you serisouly want to do this. I did it because my stock crapy heads kept blowing the spark plug and the dealer wanted 3K just to replace on head. So far the whole expense has costed me about 2500 to 3K. Maybe a little less. So for that money, and if you stock heads are in good conditions, buy a blower! Again if you want to do this you might want to e-mail me because there are a LOT of small things to make sure you check! I'm done expect for the last (hopefully) dyno tune to get everything running good.