Product Description
BMW Piston Ring - Wiseco 9400XX
BMW Piston Ring - Wiseco 9400XX
Wiseco Pro Tru line of pistons utilize a plasma moly “pre-gapped” ring set for the budget minded consumer. Wiseco Sport compact kits include the high quality NPR XX rings, which are the best quality steel nitrided top rings and napier style 2nd rings. Our late model EFI lineup and several small block Chevy pistons are designed around the our 1.2mm Steel Nitride and napier GFX ring sets. Many of our big block sets utilize a .043 back cut top ring for extra material thickness around the intake valve.
*Unless Noted - Rings Sold Individually - Order Specific Quantity Needed*
Specs:
- 2nd Ring: 1.2mm Cast Iron / Napier Hook
- Bore: 94mm
- Oil Ring: 3/16 3-Piece Std Tension
- Size: .039-.047-2.8mm
- Top Ring: 1mm Alloy Steel / Gas Nitrated
Vehicle Fitment:
- 1988-1991 BMW M3
- 1991-1993 BMW M5
Wiseco engineers utilize the latest in 3D design and finite element modeling software to ensure every Wiseco design is developed to provide the greatest strength and lightest weight for each application. Our in-house Dyno facility, equipped with the latest technology, along with our field-testing network, insure that our products meet the expectations of the demanding motorsports industry. After 75 years in the business, the name Wiseco has become synonymous with pistons,especially pistons for off-road racing and riding. Wiseco has attained that instant brand-recognition by being the only U.S. manufacturer of forged pistons for the motorsports market, and carry a full line of applications for just about any 2 or 4-stroke engine you can think of. But guess what? Pistons are just a part of what Wiseco has to offer. With the constantly evolving motorsports market, Wiseco has remained right at the forefront of technology, developing a whole catalog full of innovative products. And coming from Wiseco, you have to know it’s all pure quality – just like our pistons. What sort of stuff are we talking about? Good things, everything from forged clutch baskets to stroker cranks and connecting rods – and of course some very special pistons!
