6.1 Hemi Drop In Pistons | 4.055 Bore | 3.580 Stock Stroke | 11.0 Comp Performance Parts

This forged piston set is for use with a 4.055 stock bore size | 3.580 stock stroke crankshaft | stock connecting rod length of 6.243 in. | .984 in. wrist pin | CH = 1.220 | Compression ratio 12.1-1 with a 65cc chamber or 11.0-1 with a 73cc chamber | Displacement volume is 5.5cc | Piston weight 460g

Designed to work with stock or aftermarket connecting rods with stock rod length and .984 wrist pin

Set includes 8 pistons, 8 wrist pins, high performance piston rings and lock rings. Wiseco K0112XS