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D. Ken Bender
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Posted - Dec 01 2011 :  12:16:30  Show Profile  Reply with Quote
I swapped my original engine and found cylinder 4 half full (half empty of antifreeze). Looks like a thumb sized oval broke, and is supported by a rib in the water jacket. The original cylinder machining marks have worn half away in 160k miles. This crack either needs welding and honing, or a wet sleeve installed - not originally designed for that of course. I do have a 0.90" thick SCE copper gasket that would need 3 figure 8 shaped o-rings installed or 6 true o-rings in a rebate at the top of the cylinders. What sorts of plumbing changes are needed to the rubber boots - replacement by metal to support higher pressures?

Let me know your experiences or thoughts on these engineering changes, or is it better to get another block and full dimension head? It would be possible to simply add boost to the operating engine that is in place...


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Posted - Nov 11 2012 :  17:41:31   View scottie's Photo Gallery  Show Profile  Visit scottie's Homepage  Send scottie an AOL message  Reply with Quote
Ken, that's a big chunk. Sounds like you need a block.

Scottie Sharpe
San Jose CA
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