New Gm L8T crank for Ls or Lt
 

New L8T 6.6 gas cranks ..... These are the better steel cranks found in the newer 2020-2023 gas Silverado and GMC HD2500 trucks and vans.... .Great stroker cranks for Ls…
$550 ..plus shipping.......60lbs with box from Mi. 48240

3.860 stroke
58x crank trigger
8 bolt flywheel pattern
Center counter weighted design

Ls iron blocks need clearenced slightly for the center counter weights,,,,,aluminum Ls blocks don't need clearance...

What would displacement be with one of these with stock rods?

Can't use a stock rod unless you want Wiseco or someone to make a custom piston.........Mast Motorsports and Scoggin Dickey has Wiseco make them pistons for a 6.125 rod...............Some guys use 6.2 long rods and order a common piston for 4.0 stroke and 6.125 piston to end up at zero deck heigh......


You have a crank stroke that is .238" longer than the typical 3.622" of an LS, so your pin height has to move up in the piston by .119". The math does work out for a 1.12" pin height using an L8T crank and 6.200" rods length with a common piston for a 4" stroke/ 6.125" rod ........Got that ??

Huh no

Based on the 3.86 stroke, 400 CID if you use 4.065 (stock bore) pistons. 402 if you hone it out to 4.07