1998 cobra c head swap

[98-svt-stang]

I put a mcleod street pro clutch in it when i had it apart. So i have been trying to take it easy on it but i couldn't help but get on it a few times. So far the motor feels quite a bit stronger than the old b head setup. This week i will be installing 4.30 gears. I cant wait to see how it feels after that.


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[Saleen_1977]

Your car should pull hard

 

[Saleen_1977]

What is our stock piston compression ratio?

 

[98-svt-stang]

What is our stock piston compression ratio?

9.85:1

 

[04DeadShort]

What spark plugs inserts did you use? The dyno sheet tells the story, torque jumps up there quick in the rpm's. Should be fun on the street.

 

[98-svt-stang]

Im not completely sure. L&m installed them. They look like some type of aluminum thread insert. He said they put them in ford lightnings all the time. And i just have always been scared of stripping the stock threads out.

 

[SPT98SNAKE]

I realize this is an old post, but do you have any updates on overall happiness with the head swap? The engine in my '98 COBRA is due for a refresh, and I'm seriously considering changing heads in a very similar build. Was there a reason why you used the MACH 1 intake instead of a 1999 or 2001 COBRA? Thanks.

 

[96GT226410]

I realize this is an old post, but do you have any updates on overall happiness with the head swap? The engine in my '98 COBRA is due for a refresh, and I'm seriously considering changing heads in a very similar build. Was there a reason why you used the MACH 1 intake instead of a 1999 or 2001 COBRA? Thanks.

People are happy with the C head swap. The heads are cheap and if you keep the stock intake cams it's a nice power increase. Todd Warren recommends that you advance the cams 8 degrees.

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[SPT98SNAKE]

Thanks.