JE is excited to add another part number to our circle track arsenal with this ultra-lightweight IMCA/USRA 2-barrel piston. Designed for racing application specific performance, these pistons feature:
• Extremely lightweight (383g) for maximized off-the-corner acceleration
• Bore sizes range from 4.030in to 4.065in with .005in increments to maximize block compatibility.
• Strut lightening holes help remove mass and improve windage
.043in gas nitrided top, .043in Napier second, and 3mm oil ring reduces drag
• Accumulator and contact reduction grooves
• Double pin oiling