With racers and performance enthusiasts seeking to increase the displacement of Chevrolet’s popular LS series engines, Wiseco has developed a new piston for use with aftermarket 3.900” stroke crankshafts. With a bore size range from 3.780” to 4.185” it offers potential displacements from 350 to 429 cubic inches.
Forged in-house from race-proven 2618 aluminum alloy, these new pistons are available with a variety of dome configurations that can provide a compression ratio of 9.1:1 all the way up to 13.4:1 making it ideal for both naturally aspirated and power-boosted applications.
Other attributes include a strutted design for maximum strength at minimum weight, an additional 0.050” in piston compression height for extra robustness, and Wiseco’s proven ArmorGlide® skirt coating that reduces friction and improves power. Additionally, 3.900” stroke pistons come with heavy-duty H13 tool steel wrist pins and a set of 1.2mm, 1.2mm and 3.0mm GFX piston rings
For additional information please contact Wiseco’s tech team at 1-800-321-1364 or visit www.Wiseco.com. Founded in 1940, Wiseco has grown to be a global leader in automotive and powersports piston technology and is headquartered in Mentor, Ohio.
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