Overview 

The UEM Piston 1FZ 102.5/STD Stroke Flat is a forged performance piston tailored for Toyota 1FZ-FE engines running a standard stroke crankshaft. Featuring a 102.5mm bore and a flat-top design, it is engineered to support higher compression ratios—ideal for naturally aspirated or lightly boosted applications seeking enhanced power and combustion efficiency. The flat-top crown ensures optimal flame travel and improved throttle response, making it a great fit for performance street, off-road, or motorsport use. Built from high-strength forged materials, this piston offers excellent durability and resilience under high thermal and mechanical stress, making it a reliable option for high-performance engine builds.

Features

• Designed for Toyota 1FZ-FE engines with standard stroke crankshafts.

• 102.5mm bore size enables increased displacement and precise fit.

• Flat-top piston crown promotes higher compression and efficient combustion.

• Ideal for naturally aspirated or mildly boosted setups seeking responsive performance.

• Forged construction ensures exceptional strength and long-term durability.

• Built to withstand high heat and pressure, perfect for motorsport, off-road, or street performance.

• Improves throttle response and combustion characteristics for smoother, more powerful operation.