The Texas Speed 376ci LT Balanced Rotating Assembly is a complete, precision-balanced crankshaft, rod and piston package for Gen V LT engine builds that keep the stock 3.622" stroke. Rather than a configurable menu, this assembly is a fixed combination Texas Speed has already specified: a factory GM wet sump standard snout crankshaft, Texas Speed I-beam connecting rods and Wiseco forged pistons.
The Wiseco pistons are sized at a 4.070" bore with a 1.304" compression height and a -2cc dish, which with the 3.622" stroke yields 376 cubic inches. Texas Speed describes the package as built for high-output LT combinations where strength and reliability matter, and the assembly arrives balanced so the engine builder can move straight to measuring and assembly. The block must be bored to 4.070" to accept the pistons.
Specifications
- Displacement: 376 cubic inches
- Application: GM Gen V LT engine builds, stock stroke
- Crankshaft: Factory GM wet sump, standard snout
- Connecting rods: Texas Speed I-beam
- Pistons: Wiseco forged, -2cc dish
- Bore: 4.070"
- Stroke: 3.622"
- Compression height: 1.304"
- Balancing: Precision balanced by Texas Speed
- Part number: TSP-SSLT376BRA-2CC
FAQ
What is included in the Texas Speed 376ci LT Balanced Rotating Assembly?
The assembly includes a factory GM wet sump standard snout crankshaft, a set of Texas Speed I-beam connecting rods and Wiseco forged 4.070" pistons with a -2cc dish, balanced together by Texas Speed before shipping.
What engines is the 376ci LT rotating assembly for?
It is built for GM Gen V LT engine builds that use a wet sump standard snout crankshaft and the stock 3.622" stroke, such as the 6.2L LT1 and L86 family. The block must be bored to 4.070" to match the pistons.
Is this LT rotating assembly balanced?
Yes. Texas Speed describes it as a precision-balanced internal assembly, so the crank, rods, pistons and rings arrive matched as a set and ready for the engine builder.
Will this assembly work in a dry sump LT engine?
No. The crankshaft in this package is a factory GM wet sump design with a standard snout. Dry sump LT1 and LT4 engines use a long-snout crankshaft, so a different assembly is needed for those applications.
What compression ratio will the -2cc pistons give?
Final compression depends on the cylinder head chamber volume, head gasket thickness and deck height, so Texas Speed does not quote a figure for this assembly. The -2cc dish Wiseco piston is the near-flat-top option, which sits toward the higher-compression end for a Gen V LT build.
