I have just started to mess with installing the crankshaft on my 1969 engine in a 1971 coupe, it has a 351w bored out .30 over, on the crank its .10 under on the journals and i do believe on the connecting rod journals as well. i was wondering if anyone knew the spacing for the main bearings for both the main journals and connecting rod journals?

 

for mild mod could use specs in tom monroe's sbf book.

otherwise you must factor in rpm, pump flow, etc.

 

I assume you're talking about Bearing Clearance

Main bearings .0015-.0020
Rod Bearings .0015-.0020

http://www.popularhotrodding.com/tec...ine_specs.html