Anybody done this recently? 5.3, 5.7, 6.0, or 6.2?

 

Nobody? I'm thinking a perfect square LS1 would be badass (373 ci)
How about a destroked screamer (4.8 crank in a 6.0)?

 

I looked into this a few years ago.
The 3.900" K1 crank
6.25" rods.....better rod to stroke ratio than a 6.125"/4.00" combo
Arias 3.905" flat tops with a 1.065" compression height
They would be out of the hole on a non decked LS1 block but would have great quench with a .060" Cometic gasket
final of 374 inches......pretty neat combo

 

^^That's what I was thinking...+ be kinda cool having something different

 

Trust me when I say that it is better to stay mainstream.

 

3.9" isn't too far from mainstream at all. Destroked on the other hand. There are benefits to the 3.9" with stock blocks that have shorter liners.

 

I looked into the 3.900 stroke, only JE makes a shelf piston for it. You would think Wiseco did, since K1 is the only one to make the crank, and they are the same company.

 

Race Tec / Auto Tec have shelf pistons for 3.9 srroke with 6.125 rod.

 

K1 may not be making those cranks anymore. I was told they went over their catalogs and decided to stop making of a bunch of stuff that didn't sell well. I got one of their last 4.250" stroke cranks.