The engine was built with the 6.0 cast iron GM block. Lunati 4.250 stroke crank, and a 4.060 bore. On the engine dyno it would make @ 570hp!!

 

kjsdpc - I think you mean a 4.125" stroke crank, at least I hope you do. 4.250" stroke and a 4.06" bore = 440ci.

Does Lunati still make a 4.25" crank, the last I heard they stopped making it?

 

XLR8NSS you are correct. I was talking to a guy on the phone about a BBC when I was posting LOL!

 

"Donald Hardy's (Lubbock, Texas) sinister '02 Silverado features a 6.0L cylinder block bored 0.030-over and stroked to 4.125 inches via a Lunati crankshaft. With 10.5:1 compression, CNC-ported LS6 cylinder heads, LS6 intake manifold, and 32-gph injectors, the engine puts out 520 hp at the flywheel (450 hp at the wheels). The exhaust system is composed of Doug's long-tube headers with 15/8-inch primaries that dump into a 2.5-inch pipe with a Flowmaster muffler. The Comp XR269HR hydraulic roller was installed 4 degrees advanced. Donald's tune-up is old school only in the "there's no substitute for cubic inches" adage."

Copied from Chevy Hi Performance

 

ull probably get like 25k for it, hella sick truck though

 

does it have oil consumption problems with the huge stroke?

 

Yeah, 25 is what I was going to offer. That's the thing about dong build ups on newer rides. You can only expect to get, at most, 50% of what you put into it.

 

I knew I saw that truck somewhere.

 

The picture posted is when Donald (of Don Hardy Race Cars) took the truck on Hot Rod Power Tour. To correct the text on that pic, it is a 4.060 bore, and it still uses the stock truck intake. As for oil consumption, there has been none thus far. If anyone is wanting to offer $25,000.00 for it, we would be happy to pull the 427 out and install a brand new Escalade 6.0, with fast chip tuning. PM or email if interested....

 

I think you would have better luck on EBAY. Mine is going there tomorrow, good luck with your sell.