-Ship From Supplier-
 
These JE pistons are direct drop in for the 5.3 LS and require no balancing when used with TSP H-Beam Rods and stock GM Gen IV 5.3 crank.
 
Texas Speed H-Beam Rods are made using heat treated and stress relieved 4340 Steel and undergoes a very detailed machining process to ensure maximum strength and reliability.
Super H-Beam rods are rated for 900+HP.
 
Piston specs:
Bore: 3.780"
Comp Height: 1.300"
Wrist Pin: .927" 
Dish/Dome: -4cc Flat Top (No Valve Reliefs)
Stroke: 3.622" 
 
All TSP Rods include ARP L19 Rod bolts for Maximum Clamping force.
Rod Bearings and File Fit Ringset Included!

Note:
Although these are considered 'drop-in', ensuring proper prep, measurement, and machine work (if needed) of blocks is needed. Blocks utilizing piston oil squirters may require some clearancing.