RPrezas

So long story short, dropped a valve, very minimal damage but I am going to get my block re sleeved. I want to get rods and pistons, so my question is, the pistons I want require the 6.125 long rods. Will that rod and piston set up work fine with the stock ls7 crank?

KCS

iTrader: (20)

It'll work, but it's going to cost s lot of money to balance the crank since the steel 6.125" rods are so much heavier than the stock titanium rods.

RPrezas

Cool, I just want to make sure the motors geometry will be fine. I don't wanna get surprised with a piston sticking out at TDC. Thanks!

Hodgdon Extreme

At GM Racing, first thing we'd do for a racing engine that started life as an LS7 was to replace the Mahle Titanium rods with Carrillo steel H beams.

Crank balancing would require quite a bit of tungsten...

Che70velle

iTrader: (6)

Pankl has supplied those rods for the last few years. They are super light, super expensive (when bought new) and brittle. I'd rather have steel vs. ti rods personally.

Hodgdon Extreme

I was there ~2008; no idea what the LS7 has now. I know for certain though, that Carrillo is never the wrong answer!

Crf450r420

iTrader: (1)

Callies Billet rods are a good way to keep the weight increase in check.

pantera_efi

iTrader: (1)

Hi, my "data", LSX Block with LS-7 "long snout" crank (needed) for LS-7 Dry Sump Pump.

Crower Billet Rods with .990" pins.
RaceTec Pistons. (lite)

MY Mallory cost was $800.00 with total balance cost OVER 1K.

Thus a LOWER cost to fit a Steel Crank with 1850 BW. (Long Post)
There is a know fact that the GM Ti Rod is GM rated for 500 HP.

Lance