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Discussion Starter #1
just like it says any ideas , pros, cons on this swap thanks:beer:
 

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Think it was member ohio hoss did some on his. Summit used to sell crate engines that way. Quick way of boosting up compression for a street use setup. The H.O. heads were the best flowing 305 heads & they respond well to porting & a good 3 angle valve job.
As common sense would tell you , they would start choking up at high rpm compared to a good larger head, but with the right combo could produce good low end torque & decent hp.
I know 225cc AFR heads are out of your budget also, so what the heck.:beer:
 

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yea i got a offer on my vortecs----ported 305 heads with 3 angle valve job new 550 lift springs for my junkyard 906 vortecs,,, what ya think swap or no swap thanks for your time and opinions:beer:
 

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No way would I trade. The 305 heads will raise compression if that is all you are looking for. The small chambers have small valves in them. I have a CHP article that lists flow numbers, stock and with a lot of work done on them. The numbers are dismal, the Vortecs will easily outperform them. Fine for a 305 but you are strangling a larger engine. If you want more compression, buy pistons.
 
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I had an engine like that before. It had hella torque but would choke above 80mph. I drove that in another project before I got my elco.
 

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Discussion Starter #7
hmmm ok thanks yall on to the next idea???
i need a CHEAP USED vortec intake (yea i know right)
anybody got one????:beer::secret:
 
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