JE Pistons Pro Seal Premium Race Series Plasma-Moly Piston Ring Set - Bore Size: 4.040", Top Ring: 1/16:, Second Ring: 1/16", Oil Ring: 3/16" 41009510 Innovative design from COMP Cams

Innovative design from COMP Cams takes both the performance and durability of GM Hydraulic Roller lifters to a whole new level

6 AN Swivel to 3/8 in Quick Disconnect

Available in polished aluminum or black anodized aluminum

BMW Inline-6

square- Bore

JE Pistons Pro Seal Premium Race Series Plasma-Moly Piston Ring Set - Bore Size: 4.040", Top Ring: 1/16:, Second Ring: 1/16", Oil Ring: 3/16" 41009510 Innovative design from COMP CamsJE Pistons has been the industry leader in the design, development and manufacturing of forged racing pistons for 60 years. The benefit of that experience, along with the technology and data gathered over the course of those years, has enabled JE to create a product line to compliment our world class piston designs; JE Pro Seal Pistons Rings. Top teams in NASCAR, ALMS, NHRA, and AMA demand JE Pro Seal Rings for their engines. JE Pro Seal Rings are