Chevy Journals

bajasam96 · Post by **bajasam96** » Wed Jan 11, 2006 11:33 pm

Ok so when ya get a crank from CB or SCAT ect and its built for the chevy rods, what size rods and journals are they talkin about?

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Thu Jan 12, 2006 10:14 am

2" Buick....

Santas Brother · Post by **Santas Brother** » Thu Jan 12, 2006 10:24 am

Chevy rod journals come in two diameters: 2.000" and 2.100"

The Buick bearings are the same Id and OD,only narrower.

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Thu Jan 12, 2006 10:34 am

Clevite part # CB 610P
Extreme duty version is CB 745H (requires narrowing)

Extreme duty version with .001 added running clearance is CB 745HX (requires narrowing)

Post by **Marc** » Thu Jan 12, 2006 11:42 am

Santas Brother wrote:Chevy rod journals come in two diameters: 2.000" and 2.100"
The Buick bearings are the same Id and OD,only narrower.

Just to clarify, that's the 2". You could have a crank built for 2.1", but they always mean 2" when they say "Chev" in the VW world. There's not much to choose from in the narrow Buick V6 bearings but as Jake says you can use hipo bearings made for 2" Chev so long as they don't hit the fillets on the crank journals (hence the narrowing, which any competent machine shop should be able to do for you...they'll put the shells in a jig - perhaps a scrap 283 rod - and chuck the assembly in the lathe to rim the bearings' sides down).

Santas Brother · Post by **Santas Brother** » Thu Jan 12, 2006 9:25 pm

Yes,that's what the Chevy guys refer to as "small journals".
All the early V8s had small journals,into the late 60's.