International truck pistons

45M-meathead · Apr 18, 2009

I have a Farmall M that has been bored to 4 1/2 inches and is running 478 international pistons in it. I have a hole in one of the pistons. Does anyone know where I can get a new one? Also does the rings off a 549 engine fit the 478 and where can I get rings? Does the piston or rings in a 1468 tractor work for a 478 or 549 truck motor?

Anonymous-0 · Apr 18, 2009

I can,t tell you right of the top of my head. The 478 and 549 are the same eng except in cu in but don,t know whether it is bor or stroke that changes it. I am thinking they ran diffrent cranks so the diffrence would be stroke. Go to your local NAPA store find the old counter guy that has been there 30 years they have a book that gives part numbers and what they fit can cross it all out. I am almost certain the farm tractor has a diffrent pin placement, would not work .

International truck pistons

45M-meathead

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Anonymous-0

Well-known Member

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