351w or 347 stroker? which is better?

[ultraflo]

Originally posted by sn95gt19
i mean w/ 300shot, im sure it'll last a long time n/a but i dont think thats going to be enough for me. what do you think the longevity of a 347 w/300 hp fogger kit would be?

I haven't followed the entire post... what block are you using?

A stock block will not reliably hold a 300shot... I had just over 60 passes with a 200shot on a stock block 306 combo before the block split. A B50 block w/ a girdle would maybe do a better job, but still is pushing the limits, and wouldn't last a long, happy life.

The ONLY way you're going to put 300hp of nitrous to a 400hp+ n/a 347 is to go with an R-block or Dart block.

And, yes, I also agree with Wade and 2Fast that the 347 is a more desireable combo over the 351... all things being equal, of course. Now if you stroke the 351 it's a whole new ballgame.