BORED 30 OVER

1998 Jeep Grand Cherokee

Tiny

Sabo 258

November, 4, 2010 AT 6:33 PM

Engine Mechanical problem
1998 Jeep Grand Cherokee V8 Four Wheel Drive Automatic 0

I just finished rebuilding a 318 out of a grand cherokee I had to bore the cylinders 30 over everthing is new with the exception of the cam and lifters. It starts up easily but runs rough between 800 and 1600 rpms after that it runs smooth as silk. Do I need to reprogram the computer?

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