FCar2000TA

iTrader: (7)

I got bored, and started playing with a bore/stroke calculator, and I'm just curious if there are any 4.190" pistons that could be used with a Darton sleeved LS and a 4.125 stroke to create 455CID. It's probably not cost effective to get the extra 1.08 CID over the Texas-Speed 454 (453.94), I'm just curious.

Bazman

Custom pistons can be made to any size, but you might want to look at what ring sets are available - those would not be cheap to get in a custom size.

G Atsma

Yeah, what's possible, and what's financially feasible are two different things. As was said, you want to use pistons and rings that are already out there, and in good numbers to keep the cost down.

FCar2000TA

iTrader: (7)

That's what I figured. I was just curious. I will almost definitely stick with a Darton sleeved LS 454. That is way, way down the road though. I still plan on an Advanced Induction H/C/I package for flex fuel next year.

gnx7

iTrader: (28)

I had some custom pistons in 4.190" bore made by RaceTec/AutoTec and the price was more than reasonable compared to other companies...... 441ci via a 4" stroke crank.

Steve - Race Eng

iTrader: (1)

I sleeved a block years ago at 4.1875" bore to create a "455" for a Firebird project. That's a ring friendly size.

FCar2000TA

iTrader: (7)

If I remember correctly, you don't do short blocks, right?

Steve - Race Eng

iTrader: (1)

No short block builds any more. Too many blocks lined up to sleeve.