360 crank journal sizes

Anonymous · Post by **Anonymous** » Thu Apr 28, 05 4:45 pm

Can anyone give me the standard diameter for the Mains and rod journals on a 360 crank?

My book info suggests 2.81" for the mains but nowt for rod journals.
Urgent help required as crank is being re-ground and I want to (finally) build this engine up.
thanks

Anonymous · Post by **Anonymous** » Thu Apr 28, 05 5:02 pm

OK I found the journal diams (2.81 and 2.125"), can anyone tell me the factory tolerances for these suggested radiuses?

Anonymous · Post by **Anonymous** » Thu Apr 28, 05 9:08 pm

C'mon guys! I really need this info, the machine shop won't grind my crank 'till they know the tolerances involved

Dave-R · Post by **Dave-R** » Thu Apr 28, 05 9:17 pm

According to my book you need 0.002 to 0.003 inch of clearance on the mains and 0.0025 - 0.0035 on the rod throws. So select your bearings and adjust to that.

Anonymous · Post by **Anonymous** » Fri Apr 29, 05 7:48 am

Thanks Dave, thats just what i needed.Cheers