Texas Speed 408ci LS Brawler Balanced Rotating Assembly, -3cc Flat-Top Pistons, 58X

Build a 408ci LS stroker combination with the Texas Speed & Performance Brawler balanced rotating assembly. This listing is for supplier part TSP-SS408BRA-3CC-58X, identified by AmericanMuscle as the -3cc flat-top piston configuration with a 58X reluctor.

• TSP forged crankshaft with 4.00-inch stroke, 58X reluctor wheel and six-bolt configuration
• TSP or K1 Technologies forged 4340 steel 6.125-inch H-beam connecting rods
• Wiseco 2618 forged pistons for a 4.030-inch finished bore, with coated skirts
• Clevite main and rod bearings, plus piston rings
• Crankshaft digitally spin-balanced to the rotating assembly weight using a CWT balancer

Engine-build requirements: This is a rotating assembly, not a short block or complete engine. A suitable LS block and professional machining are required to accommodate the oversized pistons and longer stroke. Verify block suitability, clearances, piston-to-head compatibility and final compression ratio with your engine builder. Collection placement does not establish direct fitment to every stock engine.

Electronics: The crankshaft uses a 58X reluctor. Texas Speed specifies a Lingenfelter crank-sensor conversion box, part L460065397, for 24X-equipped Gen III vehicle installations; conversion hardware is not listed among the included components.

Configuration clarification: AmericanMuscle identifies this exact SKU as -3cc flat-top pistons, while Texas Speed’s general Brawler assembly description lists -4cc flat tops. Confirm the supplied piston specification before planning compression ratio or machining. This listing is separate from the -15cc dished-piston version.