Quote:
Originally posted by WheelsUp
Very well put Ultraflo,
usually I try to stay away from post like this 331 vs 347,TFS TW vs AFR185 because I know where they end up going,right into a pissing contest about what I seen where,and who built it. 
I think I have a happy medium here,if you want a302 based block race motor go for a 347,the extra throw of the longer rods will help to get it out of the hole,331 for reliability and a few extra revs on the top end of the track,now before someone says well a 331 can do that yes it can no doubt.
Personally speaking,I think if you get it put together properly,there is nothing to worry about with either,when you get off into junk parts and shade tree mechanics is when you run into problems. Ronnie Crawford is the father of the 347(at least he made it fashionable back in 92) and there are guys still out there with his 347's and 100k miles so it is all a crap shoot anyway.
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Thank you sir...
I like, and totally agree with the point you made about assembly and machine work, along with quality components... which most people tend to overlook or even take into consideration. Properly built and tuned, either will make good, reliable HP numbers...
More cubes = more HP/TQ potential