IS IT POSSIBLE FOR ME TO MAKE 450-500HP ON A STOCK TOP AND BOTTOM END

 

The bottom ends are pretty durable. Double over time (Super Stock pulling truck) is running a stock bottom end.

 

yes its very doable

please dont feed people false info. DOT is far from a stock bottom end.

 

When did he change? Last i knew he's been using the stock block with girdle and the stock crank.



2005 Ford F350 - Diesel Power Stroke Racer - Diesel Power Magazine

 

He has billet rods which are not stock making it not a stock bottom end. The rods are the week point in these engines.

 

I've always considered block and crank bottom end. Rods and pistons, rotating assembly.

So other then the billet rods, its a stock bottom end. Unlike these custom billet block 6 cylinders they call Cummins. Nothing cummins about them.

Yes, avoid the powdered rods those are known to break in stock engines.

 

I call anything below the heads bottom end. But a heavy duty girdle isn't stock, along with all the main studs and everything else. The block might be stock but its filled 100% so that makes it not stock either. There is very little in that engine that is truly 100% stock.

Forged rods break to, they just hold up a little more.

 

In the world of super stock that is stock

 

But for the rest of the world its not.


So to answer the original question, yes you can make 450-500 on stock rods. Just takes some 238/100s and enough air

 

IMHO. That all depends of what version of the 7.3 liter you are talking about. Pre- '99's had forged rods. '99 on had powdered rods. So in '99 on, that was their weak point. Pre- '99s did have an IC, which would be the first mod to keep EGTs down... and of course that isn't in the bottom end. (Of course that is going to need head work.)

But then again, the OP, didn't mention what he had... or what he thought he was going to do. I respect other's points of view. Sometimes that's just a different perspective. As for "JUST"... 238's are going to require that you have enough HPOP to supply that.. steady upper pressure at between 2800-3000 psi. The a high volume low pressure feed. Then an open exhaust and a compression to drive it... and some tunes to tie it together.

Sorry = I'm an old school blueprinter. Things sort of work together and go hand in hand. Just drop one odd piece in (example- 238's) and sometimes it will end up feeling dog'y and blowing smoke... because things are not working together to make it work.

Diesels are easy- More air in, add more fuel, get rid of the exhaust. In between, get things working together (both mechanically and electronically), instead of one thing pulling other things down. Simple formula.