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  5. 138220004 Tillotson 225RS 72mm Piston
138220004 Tillotson 225RS 72mm Piston
138220004 Tillotson 225RS 72mm Piston
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138220004 Tillotson 225RS 72mm Piston

Part Number: 138220004
Your Price: $24.99
Retail Price:$29.99
You Save:$5.00(17%)
Availability: In Stock.

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Description

Tillotson Racing 72mm Piston for the Tillotson 225RS Race Engine

Tillotson Racing Lightweight Hypereutectic Piston – I'm going to make a quick correction that is falsely advertised about this piston. The Tillotson 72mm piston is not a forged piston.  Originally we wanted Tillotson to make this a forged piston, but to keep the costs down; they went with a hypereutectic casting. 

The piston uses the latest technology and design utilizing racing slipper skirt vs. conventional barrel skirt design of other stock pistons. This piston uses an aluminum alloy with high silicon for a lower coefficient of thermal expansion, allowing tighter tolerance for superior performance and longevity over stock Chinese cast pistons used in other engines and kits. The low slipper skirt design also allows more clearance in the rotating assembly for larger stroke crankshafts. In addition, we made the compression height shorter by moving the location of the pin and using a smaller diameter wrist pin. These improvements allowed the use of a longer rod while reducing weight in the rotating assembly.

This Piston fits our 228R and 236R Engines
Rings, wrist pin and clips are sold seperately

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