JE Pistons Piston Set, 2618, Dome, 4.1275 Bore, 1.065 CD, 0.927, Pin Dia, Set of 8. - 311929
JE Pistons’ asymmetrical FSR (Forged Side Relief) piston line incorporates modern forging design with a larger skirt on the major thrust side and smaller, friction-reducing skirt on the minor thrust side. Combined with precision CNC machining, the result is a high-strength, lightweight piston that is extremely durable.
Quantity Per - Set of 8.
Bore (in) - 4.1275
Bore (mm) - 104.84
Piston Material - 2618
Pin Part Number - 927-2250-15-51C
Pin Included(Yes/No) - Yes
Pin Diameter (mm) - 23.55
Pin Diameter (IN) - 0.927
Ringset Part Number - JG31F8-4125-2
Ringset Included(Yes/No) - No
Retainer Lock Part Number - 927-073-MW
Lock Included(Yes/No) - Yes
Oil Rail Support Part Number (If Required) - 4125-162
Oil Rail Support Included (Yes/No) - Yes
Left or Symmetrical Head Gasket - GM1021-051
Right Head Gasket -
Lethal Performance is proud to offer the entire line of JE Pistons products!
Since 1912, JE Pistons has continued to evolve their manufacturing processes, currently offering racing pistons either off the shelf or fully custom. JE pistons are all designed, forged, and machined in-house, allowing control over every step of the piston-making process. JE’s 7+ decades of experience in high-level racing has led to offering premium racing features, including full billet construction, EN plating, and purpose-designed coatings, to name a few.
