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mar400ex
07-16-2004, 09:58 PM
has anyone had major problems with 12.5:1 compression on a 440 kit for a 400?

yellerfour00
07-17-2004, 09:15 PM
no other than that fact u have to run race gas i running the same compression i just run striaght VP 110 gas

Florida400EX
07-17-2004, 09:44 PM
Make sure you have a stronger rod, race gas, and let it cool down every now and then... 440's heat up pretty quick.

TC426EX
07-17-2004, 10:45 PM
Running that compression, you obviously need race gas. You also really should be running a heavy duty rod in there with that compression like the Carillo or Curtis Sparks rod.

cals400ex
07-18-2004, 10:26 AM
heavier head studs will be needed probably.