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Old 05-22-2012, 09:30 PM
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You might read about the crate 383 sold by GMPP. it uses a 350 block but with a standard 4" bore and a 3.8" crank stroke to get the "383" designation.
But almost all other SBC stroker combinations will be based around a 3.75" stroke crank and a 350 SBC block bored to whatever oversize is necessary to get a good bore, usually not over 0.060" over bore- 0.060" over makes the engine 388 cid.
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