Description
TSP 438 or 441 C.I.D. LS7/LSX Rotating Assembly – No Balancing
The Texas Speed & Performance 438/441 C.I.D. Rotating Assembly is designed for performance LS7 and LSX-based engine builds. Available with either a 4.100″ or 4.125″ stroke crankshaft, this assembly offers multiple crankshaft, connecting rod, and piston options to accommodate a variety of engine combinations.
Key Features
- Designed for 438 or 441 C.I.D. LS7 and LSX-based engine combinations
- Choice of 4.100″ or 4.125″ stroke crankshaft
- Available piston sets are compatible with either stroke option
- Multiple crankshaft, connecting rod, and piston options available
- Wiseco piston sets include steel top and Napier second ring sets
- Rotating assembly is supplied without balancing
Important Notes
- The 4.100″ stroke crankshaft requires a slightly shorter block deck height than the 4.125″ stroke crankshaft to achieve a zero-deck configuration.
- Final block machining and deck height should be determined based on the selected rotating assembly components.
Note: This rotating assembly is not balanced. Component options should be selected to match the intended engine combination. Product image is representative; actual components may vary based on selected options.
This assembly is built to order. Choose your crankshaft, connecting rods and pistons above — the price updates as you select.










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