Steven Bryant
Well-Known Member
- Joined
- Jun 22, 2012
- Messages
- 632
As the title says i'm looking for a MAC 45 p/l, brand new or used but in great condition.
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The wrist pins are the same size. The crank pins are different due to the Mac being needle bearings and the AA being bushed.How did you get the pin to fit? The piston pin dia is different between the steel mac rod and the AA piston. It's not a direct fit, if I remember right the MAC steel rod pin is a larger dia then the hole in the AA piston..
I pulled out all my parts and I did use the AA wrist pin. Never even checked the Mac pin due to it not being in great condition. It is .001 larger and would not fit. Sorry for the mis information Steven.The wrist pins are the same size. The crank pins are different due to the Mac being needle bearings and the AA being bushed.How did you get the pin to fit? The piston pin dia is different between the steel mac rod and the AA piston. It's not a direct fit, if I remember right the MAC steel rod pin is a larger dia then the hole in the AA piston..
YupSo you used a AA wrist pin in a Mac steel rod even though AA wrist pin is a .001-.003 smaller then the hole in the MAC steel rod. No issues running a smaller dia wrist pin in the connecting rod then what is was designed for? Just asking? Thanks, Josh-
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