Thread: NOS Chevy "factory high performance" 307 engine?
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Old 06-15-2016, 01:47 PM
lowmile lowmile is offline
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Default Re: NOS Chevy "factory high performance" 307 engine?
I know where Chevy found the extra 45 HP in these 307's An nice set of 186 heads. The engine casting dates are June and July of 1970.
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