Manley 590040R-1 Manley Platinum Series Pistons | Atech Motorsports Valves Direct bolt-in installation using factory

Direct bolt-in installation using factory spring perches and isolators

no cutting

Part 03938 is configured for its specific application with attention to fitment requirements

Product 49666 is verified for correct specifications and dimensional accuracy before shipment

Manley 590040R-1 Manley Platinum Series Pistons | Atech Motorsports Valves Direct bolt-in installation using factoryThe Manley 590040R 1 Manley Platinum Series Pistons Atech Motorsports are premium forged pistons designed for engine builders who refuse to compromise. As the component that transfers combustion pressure directly to the connecting rod, piston selection is critical for power, reliability, and longevity. These pistons are ideal for high performance street, strip, and circle track applications where consistent ring seal and thermal stability matter most.