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Old 12-22-2014, 10:28 AM   #7
Ross F-1
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Default Re: I always wondered why exhaust port bolts are different?

Quote:
Originally Posted by George/Maine View Post
To add to this a 53 truck 8rt engine they are the same size.
When I was putting headers on mine I was expecting bigger in front they had a y pipe that year.
That is not my experience on truck engines. Could those holes have been helicoiled? (Note: I have not seen any '53's, only 48-52)
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