i was just wondering what the most horsepower the stock blocks can take?

 

I think for the 2v's its limited to about 450rwhp. But safely I would say 400 rwhp

 

Here's something I don't understand: what is meant when someone says "block" horsepower? Is that the actual block, or the block and the internals? And I've heard the same thing defconfire has about the limit: about 400 hp. I just don't know exactly what that means

 

The stock internals are safelylimited to around 400-410 rwhp imo. The actual block will hold a pretty fair amount more than that, not sure of a specific range though.

 

i was told the internals can hold UP TO 420.. anything after that you need to be forged. As for the block itself i was told 500-550.

 

The confusion I think comes when people ask how much the shortblock can take. A shortblock includes the internals. The internals of a GT, exactly as defconfire said, can take about 450 RWHP as long as you have a good tune, however I agree with him again saying that I would stick conservatively to not much more than 400. If you swap the internals you can get a lot more out of the block itself. I don't know the actual block's numbers, but if I had to take a guess I'd say it can probably handle 700-800. That's just a guess though so don't bet your car on it.

 

Our blocks can handle whatever you throw at it. I've read about 750 rwhp engines that held up just fine. That would be over 800 at the flywheel. The stock rods are made out of bubble gum though.

 

the crank is not that amazing either, being cast iron and all.

 

It's not that bad. THR has built two twin turbo gts with the stock crank still in that made 700 rwhp that are still running. I asked them if they had ever broken a stock crank or seen or heard of anyone doing it and they said no.

 

REALLY?!?! I wouldnt think the crank would hold up at all past 550 or 600 hp