Need a lone warrior for your cylinder? This 72mm piston from Tillotson slots perfectly into big bore blocks, ramping up your engine's grunt for those critical overtakes.

Without rings or pins, it's versatile for custom builds where you mix and match. The design minimizes skirt drag, allowing freer piston movement and thus higher revs—crucial for shaving lap times in kart competitions.

• Same high-spec piston as in the complete kit.
• Engineered for 72mm Tillotson blocks only.
• Boosts overall displacement for tangible speed gains.

In the heat of a race, a reliable piston keeps you consistent, avoiding the pitfalls of scoring or seizure. It's a smart pick for tuners organizing parts inventories efficiently.

Tillotson OEM Part #138220004. SKU: TPP-72MMP

Frequently Asked Questions

Q: Is this piston compatible with standard 196cc clone engines?

A: No, this is a 72mm big bore piston designed specifically for Tillotson big bore blocks. It will not fit a standard 68mm or 70mm bore cylinder without proper machining and block preparation.

Q: Does this piston come with rings and a wrist pin?

A: No, this is the piston only. It is intended for tuners who already have the necessary hardware or are building a custom setup. If you need the complete assembly, please see our piston kit options.

Q: What are the benefits of the reduced skirt design?

A: The design minimizes skirt drag against the cylinder wall, which reduces internal friction. This allows the engine to rev more freely and reach higher RPMs, helping you shave valuable time off your laps.

Q: Do I need to hone my cylinder before installing this piston?

A: Yes. When installing a new piston, it is critical to ensure your cylinder bore is properly sized and honed to the correct clearance specifications to prevent seizure and ensure optimal ring seal.

Related Products From Vendor

• Tillotson 196cc Clone Reinforced Big Bore Block - 72mm - Modified/Open Class
• Complete Tillotson 72mm Piston Kit with Rings and Pin
• Tillotson 196cc Clone 72mm Piston Ring Set - OEM Replacement - Modified Class
• Tillotson Fire Ring Head Gasket for 72mm Bore Engines
• Tillotson 72mm Piston Wrist Pin - 138220006 - 196cc/212cc Clone