quick view Choose Options Fingers Pistons FNG-FOBCP MSRP: $2,150.00 John "Fingers" McElravy created the biggest breakthrough in Duramax Piston design. Fingers Oval Bowl design utilizes the latest in heat mapping technology to disperse heat and keep more material in the right places, making then the go to pistons for the... Choose Options Add to Wish List Add to My Wish List Create New Wish List Compare