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cnavarro cnavarro is offline
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Join Date: Oct 2001
Location: Momence, IL 60954
Posts: 1,847
If you end up using the cast iron cylinders, I would stick to a 1mm overbore to 85mm and use some total seal rings like Tim recommended. What kind of mileage are you planning of putting on the engine and what usage will it see (track/street)? I would sincerely recommend finding some birals at the very least and bore then out to 85mm if you're using the 2.4 crank, since you're asking a lot of the cast iron cylinders if you exceed 20-ish horsepower per cylinder and still expect to be as reliable as it was in stock form. With 200 horses, I would expect an overall reliablity of maybe 50,000mi between overhauls, maybe less, depending on how hard you drive it.

BTW, I would recommend cryo'ing the cast iron barrels, it helps them stay round longer and burn less oil.

Charles Navarro
LN Engineering
http://www.LNengineering.com
Aircooled Precision Performance
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http://www.LNengineering.com
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Old 05-05-2005, 07:03 AM
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