Butler LS Custom Rotating Assembly, LS1

These assembles utilize the lightest, strongest pistons and pin design available. We use only the highest quality Pistons in all of our Rotting assemblies, not the cheaper pistons that many retailers sell at a similar price.

These Butler Performance rotating assemblies come standard with H-beam 4340 forged steel rods, Forged Crank in both 24x and 58x, 2618 Forged Pistons, Straight wall Pins, Performance Series Main and Rod bearings, Total Seal Classic Race Rings. The Custom Butler Rotating Assemblies allow for a large range of appellations from street car all the way to a all out race car. All Rotating assemblies Butler LS balances are inspected pin fitted an drilled in house.

Choose Desired Bore Size and Ring Type

Forged Flat Top Ross and Diamond Pistons, Dish, or Dome Available

Specify Desired Compression Ratio

Aftermarket .927 wrist pins

Bushed/Full Float H-beam or I-Beam 6.125" rods

Pin Fitted

Total Seal Rings

Federal Mogul or Clevite Performance Main & Rod Bearings

** Custom Pistons Take 4-6 weeks **

Butler Process- Balanced Internally

All assemblies are internally balanced and require a neutral balanced flexplate or flywheel and harmonic balancer. Our assemblies can be upgraded and customized match to your project.