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Autotec dome top pistons are manufactured on forged side relief, 4032 low expansion, high silicon material excellent for street or strip applications, fitting most 23° heads. They feature:
- CNC precision machined ring grooves for 1.5 1.5 3.0mm low friction rings.
- Top ring land gas distribution grooves serve to enhance performance and improve ring seal.
- .990 diameter, 2.800 long, 51 series steel wrist pins with pin fit, wire locks, broached pin oilers, and gas accumulator grooves included at no extra charge.
- Diamond turned skirts.
Small Open Chamber Dome
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