the SBB shares many overall design principles ( not dimensions ) with the BBB.
try the FAQ page for BBB oil mods:
http://www.teambuick.com/forums/show...ht=oil+passage
and pay special attention to the page on checking oil pump clearances:
http://www.buickperformance.com/oilpumpwear.htm
timing cover wear is probably what took out the main bearings originally but you need to check with your mechanic on what clearances he put on the bearings. .002" is the MOST clearance that you should have on your main and rod bearings for a Buick. Chevy guys aren't used to building our engines.
if you want more oil pressure simply shim the bypass valve spring with washers. you can put enough pressure on the stock pump to blow an oil filter can apart.
AM&P has a page specifically for building a 350 here:
http://automachperf.com/350.html
any good Buick turbo v6 builder or Land Rover mechanic would be a good choice to work on your engine. the Buick v6 is a short deck version of the 350 with two less cylinders and the Land Rover v8 from 1965 up through 2004 is a metric version of the original SBB, the 215ci aluminum v8 from 1961-63.
i believe you can source neoprene front and rear main seals for your engine by using parts for the Buick 231. you can also swap timing covers with the v6.
Last edited by bob k. mando; 11-17-2010 at 03:27 PM.
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