Thread: 307 engine
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Old 01-22-2019, 10:40 PM   #3
Warrens69GMC
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Join Date: Jan 2003
Location: Safford,AZ
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Re: 307 engine
What heads did you put on it. All 307's i have seen have had 1.72 heads...
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1969 307, t350
1950 Chevy Wagon
1978 Big 10
1967 C10, 250,3-OTT
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