JE Pistons Piston Set, 2618, Flat Top, 3.905 Bore, 1.340 CD, 0.945, Pin Dia, Set of 8. - 321240
JE Pistons’ LS1 series pistons utilize dedicated Forged Side Relief (FSR) forgings specifically designed for the demands of LS series engines. They are lightweight, extremely durable, and machined for modern 1.5mm, 1.5mm, 3.0mm performance ring sets.
Quantity Per - Set of 8.
Bore (in) - 3.905
Bore (mm) - 99.187
Piston Material - 2618
Pin Part Number - 945-2250-15-51C
Pin Included(Yes/No) - Yes
Pin Diameter (mm) - 24
Pin Diameter (IN) - 0.945
Ringset Part Number - J68008-3900-3
Ringset Included(Yes/No) - No
Retainer Lock Part Number - 945-073-MW
Lock Included(Yes/No) - Yes
Oil Rail Support Part Number (If Required) -
Oil Rail Support Included (Yes/No) - No
Left or Symmetrical Head Gasket - GM1015-051
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.
