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maximum overbore gs1100
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maximum overbore gs1100
I am looking at some new pistons for my 82 1100 motor and was wondering if is possible to safely bore the stock cylinders to 79mm.This will be a low compression turbo motorTags: None
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To my knowledge 75mm is the max bore.1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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amxsteve
Originally posted by rapidray View PostSteve, you can go 75mm on a stock 1100 block, 77mm on a stock 1150 block, or with a re-sleeve you can go 80mm on a race only setup on a stock block. Anything over 3mm overbore on a stock I HIGHLY recommend a "big block".
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