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Bored&Stroked · 05-03-2024, 01:10 PM

You always need to install the rear-main seal (in the block) before you put the crankshaft in. I prefer to use the graphite impregnated ones from BestGasket.

Question, did you wash the block with a lot of hot soapy water after it came back from the machine shop? The includes running rifle bore-brushes through all the oil-galley holes?

Or, did the machine shop wash it thoroughly before they gave it to you? There can be a lot of grime/grit impregnated into the bores as well as metal shavings in various places. Some machine shops have big "block washers" - some don't.

05-03-2024, 01:10 PM	#145
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,233	Re: 276 stroker from 35 years of parts You always need to install the rear-main seal (in the block) before you put the crankshaft in. I prefer to use the graphite impregnated ones from BestGasket. Question, did you wash the block with a lot of hot soapy water after it came back from the machine shop? The includes running rifle bore-brushes through all the oil-galley holes? Or, did the machine shop wash it thoroughly before they gave it to you? There can be a lot of grime/grit impregnated into the bores as well as metal shavings in various places. Some machine shops have big "block washers" - some don't.