I'm running a stock block and an s trim and have been since end of 05. It was putting down over 500rwhp for a couple years....then went to mid to upper 5's....now i'm at 646rwhp. All on the stock block. I know it's a ticking bomb but it sure is fun while it ticks
I am done doing performance upgrades to the car now. So It shouldn't be a problem for the block to handle what is already done. As for the fuel pump, I had the stock in tank and a 255lph in line pulling it through the stock pump. It was just too restrictive. Now I am running two 255lph pumps and it seems to be running no problem. I take it back to finish getting tuned on the 18th if everything goes good. I will post the numbers up here once I get done up there.
I am done doing performance upgrades to the car now. So It shouldn't be a problem for the block to handle what is already done. As for the fuel pump, I had the stock in tank and a 255lph in line pulling it through the stock pump. It was just too restrictive. Now I am running two 255lph pumps and it seems to be running no problem. I take it back to finish getting tuned on the 18th if everything goes good. I will post the numbers up here once I get done up there.
i would put a lifter valley girdle and a main girdle in it....one of my friends just took his engine apart again to freshen it up its a 347 NA and his has cracks in it...he's only pushing 450hp at the flywheel