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dirtdevil
09-29-2012, 05:56 PM
I know it has been asked - but here goes again.

4.125 bore, iron block and aluminum head. Fel-Pro 1004 or 1034 ??

perfconn
09-29-2012, 07:07 PM
1034 Fel Pro

SLM98
10-03-2012, 05:33 PM
So what would be the problem with a 1003 if it didn't hang over on the head. More gasket material between cylinders.

perfconn
10-03-2012, 05:47 PM
1003 will work.The 1034 is just better.The gasket between cylinders doesn't make much difference.The metal fire ring is what seals the compression.