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Topic Review (Newest First)
07-29-2009 08:52 PM
techinspector1 aormz, if I were you, I'd pay attention to what DoubleVision says. He's been there, done that a few times.....
07-29-2009 08:45 PM
Big Baby
Quote:
Originally Posted by aormz
situation: a 350 block minus heads and intake

Can I throw 305 heads and intake on top of this block? What's the drawbacks of using heads from a 305 on a 350 block?

thanks
(BIG BABY) There will be no draw backs just make sure you change the valve seals and use your 305 exhuast manifold for better flow.
07-29-2009 08:19 PM
DoubleVision If this is just a daily driver without performance in mind the only draw back is the compression ratio that will result in using a small chambered 305 head. The small 58cc chambers raise the compression ratio considerably on a 350 and that could cause detonation and that can kill your engine. If your 350 is a stock 350 with dished pistons you can install the 305 heads and carefully set the timing curve and run premium fuel and get away with it. Also a help would be to run a cooler T stat such as a 180 degree as well as cold air induction. If your engine is overbored with flat top pistons it`s likely the ratio will be too high for pump gas.
07-29-2009 07:14 PM
aormz
SBC Question

situation: a 350 block minus heads and intake

Can I throw 305 heads and intake on top of this block? What's the drawbacks of using heads from a 305 on a 350 block?

thanks

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