To match the dome of the OE M20 "i" head & OEM piston requirements (all at OEM Specs @ OEM thickness, head and block: 8.8:1 compression), and all other specified requirements; a specialized blank piston slug is sourced as well as a specialized ball machining process is undertaken to the dome of the piston.
- Made from the best forgings available for uncompromising reliability and performance. - Sold in matched and balanced sets of 6 - Optimized to be the best class-legal M20 piston available - Supplied with excellent quality ring set, lightweight pins, and pin locks.
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