Wiseco Mitsubishi 4G63 7-Bolt 1.9cc Dome 10.5:1 Compression Piston Set

Wiseco Mitsubishi 4G63 7-Bolt 1.9cc Dome 10.5:1 Compression Piston Set

Marsoni

M251S

$432.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Wiseco Mitsubishi 4G63 7-Bolt 1.9cc Dome 10.5:1 Compression Piston SetProfessional Series forged racing pistons from Wiseco are no expense spared pistons designed for the serious racers and builders. Packed full of custom level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco? s Professional Series.

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The plates have a tiny amount of twist in the center and quite a bit of doming when flexed. While the outer edges are entirely floppy. Most of the center is smooth, but there are rough patches that flake off paper pieces when rubbed with a spoon or from a lot of moisture from food. The flat surface (not the inner walls) was able to withstand still water for about 10 minutes before weakening, so I wouldn't use it for wet or very moist foods.

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Reviewed in the United States on May 28, 2026