Buick 231 Specs?

Does anyone have engine specs for a 231? I'm looking for bearing sizes & clearances, cylinder bore size, torque values, etc. I just finished the teardown on my 231 and I need to check things out before I start buying parts.

Either my google-fu is failing me or the info just isn't available on the 'net.

Thanks in advance for any info.

 

What year 231? Is it odd fire or even fire? Huge difference there. Lots of changes in 231's over the years. I have a few fsm's that cover them but need more info.


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Sorry, it's a 1978 even fire.

By the looks of things, if I can get the specs, I may not have to take any of the shortblock to the shop. I suspect the PO did a rebuild. The crank journals look nice and there isn't much of a ridge in the cylinder bores. I'm finding between .003" and .004" bearing clearances, which isn't too bad. I hoping for a ring and bearing replacement, a quick hone, a valve job and reassembly. That would fit my budget nicely...

 

I would still take block to machine shop and have it dipped . and have cam bearing replaced

 

Main journal diameter 2.499" with .0015" max out of round. Clearance .0003-.0017" . Endplay .004-.008"
Crank pin diameter 2.2495-2.2487" Rod side clearance .006-.020".
Cylinder bore 3.800". Out of round .0005" max
Taper .0005" max. Piston to bore clearance .0008-.0020".
Piston ring groove clearance compression rings
Top. .003-.005"
2nd. .003-.005"
Ring end gap compression. .010-.020"
2nd ring. .010-.020"

Oil rings:
Groove clearance .0035" max
Gap .015-.035".

This is from my 1978 chev Monza fsm.



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^That's what I needed! Thanks a million!^

I have a hot tank at work, so I'll be doing the dip myself. And I have everything needed to do the cam bearings here at the house. Hopefully with the above info and some measurements, I should be avoiding any block/crank work from my local shop....