Re: More Specifics on Main / Rod Bearings

[RAHosmer@aol.com]

>From the AH Factory Workshop Manual:

Journal Diameter:   2.3742 to 2.3747"

Crankpin Diameter:   2.0000" to 2.0005"

Undersizes available:    -0.010" , -0.020" 

Note that there IS a difference between the BN4 and later 3000 engines - the 
-0.030" and -0.040"     undersizes, listed for the BN4, are apparently NOT 
"factory approved" for the later, more powerful engines.  The experienced 
engine 
rebuilders out there may pooh-pooh that - I'm only passing along what the book 
says!

Dick Hosmer
HBT7L18556