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Re: 307 engine
Correct.^^ a 283 + 327 (large journal) crank= 307. The 327 w/a 283 crankshaft (small journal) created the high revving 302 for the autocross of the late '60's. Stay at or under the 1.94 I valve for that small bore. What other SBC got or gets a bad reputation? The 400.
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