Texas Speed H-Beam Rod & JE L8T No-Balance Piston Combo (TSP-JEL8TDROPIN) - 2020+ GM 6.6L L8T
Build your 6.6L L8T with confidence using the Texas Speed H-Beam Rod and JE No-Balance Piston Combo. Designed specifically for the GM L8T platform, this complete rotating assembly package combines premium JE forged pistons with Texas Speed Super H-Beam connecting rods to deliver outstanding durability, reliability, and performance for demanding street, towing, boosted, or race applications. Best of all, this combo is engineered to work with the factory L8T crankshaft without requiring balancing, helping simplify your engine build while maintaining exceptional strength.
The included JE forged pistons are precision-machined for the 6.6L L8T and paired with Texas Speed Super H-Beam rods constructed from heat-treated and stress-relieved 4340 steel. Each rod undergoes a meticulous multi-step machining and honing process to ensure accurate roundness and proper bearing geometry during installation. ARP L19 rod bolts provide superior clamping force for high-cylinder-pressure applications, while the included rod bearings and file-fit ringset help streamline assembly. Rated for builds approaching 900 flywheel horsepower, this rotating assembly is ready to support serious power goals.
Features
- Complete no-balance piston and rod combo for GM 6.6L L8T engines
- No balancing required with stock GM L8T crankshaft
- JE forged pistons engineered specifically for the L8T platform
- Texas Speed Super H-Beam connecting rods manufactured from 4340 steel
- ARP L19 rod bolts included for superior clamping force
- Rated for builds up to approximately 900 flywheel horsepower
- Precision-machined rods with multi-stage honing process
- Rod bearings and file-fit ringset included
- Ideal for naturally aspirated, boosted, and heavy-duty performance builds
Piston & Rotating Assembly Specifications
- Application: 6.6L GM L8T
- 4.065" Bore
- 1.185" Compression Height
- 3.86" Stroke
- .927" Wrist Pin Diameter
- -7cc Piston Design
- Ring Pack Included: 1.2mm Top Ring, 1.5mm Second Ring, 3.0mm Oil Ring
Technical Details
- Heat-treated and stress-relieved 4340 steel rod construction
- TSP Super H-Beam connecting rod design
- Rods are torqued, rough-honed, stress-relieved, and final-honed for maximum accuracy
- Designed to maintain proper roundness during final engine assembly
- Compatible with stock GM L8T crankshaft without balancing
Important Notes
- Oil squirter clearance must be checked and adjusted accordingly after installation
- Blocks utilizing piston oil squirters may require additional clearancing
- Ring gaps, piston-to-wall clearances, and bearing clearances must be verified before final assembly
- Verify piston-to-deck and piston-to-valve clearances for your cylinder head and gasket combination
- Follow ARP and Texas Speed torque specifications and recommended assembly lubricants during installation
- Improper clearance verification may result in engine damage
Kit Includes
- JE Drop-In 4.065" -7cc Pistons for L8T Crankshaft
- Texas Speed 6.125" Super H-Beam Connecting Rod Set with ARP L19 Bolts
- Rod Bearings
- File-Fit Ringset
Fitment
- 2020 Chevrolet Silverado 2500HD 6.6L L8T
- 2021 Chevrolet Silverado 2500HD 6.6L L8T
- 2022 Chevrolet Silverado 2500HD 6.6L L8T
- 2023 Chevrolet Silverado 2500HD 6.6L L8T
- 2024 Chevrolet Silverado 2500HD 6.6L L8T
- 2020 Chevrolet Silverado 3500HD 6.6L L8T
- 2021 Chevrolet Silverado 3500HD 6.6L L8T
- 2022 Chevrolet Silverado 3500HD 6.6L L8T
- 2023 Chevrolet Silverado 3500HD 6.6L L8T
- 2024 Chevrolet Silverado 3500HD 6.6L L8T
- 2020 GMC Sierra 2500HD 6.6L L8T
- 2021 GMC Sierra 2500HD 6.6L L8T
- 2022 GMC Sierra 2500HD 6.6L L8T
- 2023 GMC Sierra 2500HD 6.6L L8T
- 2024 GMC Sierra 2500HD 6.6L L8T
- 2020 GMC Sierra 3500HD 6.6L L8T
- 2021 GMC Sierra 3500HD 6.6L L8T
- 2022 GMC Sierra 3500HD 6.6L L8T
- 2023 GMC Sierra 3500HD 6.6L L8T
- 2024 GMC Sierra 3500HD 6.6L L8T
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