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#26 |
Registered User
Join Date: Aug 2009
Location: Alden NY
Posts: 2,705
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Re: 307 tbi
My 70 Burb was sold and in and came from California. It came with a factory 307.
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1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7 |
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#27 |
Who's got steelies?
![]() Join Date: Feb 2006
Location: Morrison, Oklahoma
Posts: 1,025
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Re: 307 tbi
The 305 is a smog motor, while the 307 was just a "base" V8. 305's un-smog pretty easy though, with higher compression pistons and a stock pre-smog cam.
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#28 | |
Registered User
Join Date: May 2009
Location: Eliot, Maine
Posts: 1,314
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Re: 307 tbi
Quote:
would rather have a 305 (same crank as the 350) in my 72 burb c20 instead of the 307. but the motor is original, runs great now that the 2bbl is bye bye and a q-jet is in it's place. when the day comes that the motor needs a freshening, it is getting a 400sbc stroker kit and full roller RV grind valve train for REAL towing power. certainly an interesting, unique project, but it would have been much easier to swap a 350tbi engine in and gain performance as well as efficiency. plus, the old engine doesn't have all the sensor ports needed for fuel injection and then there is the tuning issue as there never was a 307tbi calibration from GM. good luck! |
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#29 |
Registered User
Join Date: Aug 2010
Location: RTP, NC
Posts: 518
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Re: 307 tbi
Great info here. I have a 307 myself and want to freshen up some. Like the different stuff.
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