Posted by pmer on August 25, 2012 at 12:36:28 from (220.127.116.11):
I'm thinking about taking out the 425 LP and putting in a 504 LP. Using it for 7000 lb county fair pulling. I understand the 504 has more power and probobly a better head, cam and governor too?
I do have some 605 parts. But it's an older 605. Is there a piston with compression height to match the short 4 5/8" cylinder block to a 6 inch stroke?
If this 504 is healthy I might run that way for a season to see how it does. I have ran the 425 a few times with 16.9 x 38s in 7000Lb. I don't pull to win but want to have fun. Best it done so far is a third place and that day it beat a 4010 and a 3010. The track was wet and I think I had a better tire for that day.
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