Enginetech S40518-040 is a premium .040" oversize piston ring set for 1992-2004 Chevy, GMC, Hummer 6.5L 395ci V8 engines, sold as a complete set covering all cylinders.
Important Notes:
- Sized for cylinders bored .040 inch oversize. Verify your finished bore diameter with a precision gauge before ordering - rings sized for the wrong bore will not seal correctly.
- File-fit and gap each ring to the manufacturer's end-gap specification for your application before installation. Improper end gap causes blow-by or ring-end butting under heat.
- Replace piston rings as a complete set during any rebuild. One set covers all cylinders for the engine.
- Premium. Steel or Ductile Moly. Keystone top. 3.0 / 2.0 / 4.0mm. Turbo and Non turbo.
- Premium. Steel or Ductile Moly. Keystone top. 3.0mm / 2.0mm / 4.0mm. Turbo and Non turbo.
- Premium. Steel or Ductlie Moly. Keystone top. 3.0 / 2.0 / 4.0mm.
| Part Number | S40518-040 |
| Grade | Premium |
| Bore Size | .040" Oversize |
| Ring Stack (Top/2nd/Oil) | 3.00 / 2.00 / 4.00 |
| Standard Bore Diameter | 4.055 in |
| Quantity | Complete set - covers all 8 cylinders |
| Engine | 6.5L 395ci V8 |
| Year Range | 1992-2004 |
| Makes | Chevrolet, GMC, Hummer |
| Country of Origin | US |
| OEM Cross-Refs | Hastings:2C4744, Hastings:2D4744, FEL-PRO:E-626K, Perfect Circle:41718 |
Sold as a complete piston ring set - one set covers all cylinders and is required per engine.
Fitment:
- 1992-2000 Chevrolet C2500 6.5L 395ci V8
- 1992-2000 Chevrolet C3500 6.5L 395ci V8
- 1992-2000 Chevrolet K2500 6.5L 395ci V8
- 1992-2000 Chevrolet K3500 6.5L 395ci V8
- 1992-2000 GMC C2500 6.5L 395ci V8
- 1992-2000 GMC C3500 6.5L 395ci V8
- 1992-2000 GMC K2500 6.5L 395ci V8
- 1992-2000 GMC K3500 6.5L 395ci V8
- 1992-2002 Chevrolet C3500HD 6.5L 395ci V8
- 1992-2002 GMC C3500HD 6.5L 395ci V8
- 1994-1994 Chevrolet Blazer 6.5L 395ci V8
- 1994-1995 Chevrolet C1500 6.5L 395ci V8
- 1994-1995 Chevrolet C2500 6.5L 395ci V8
- 1994-1995 Chevrolet G20 6.5L 395ci V8
- 1994-1995 Chevrolet K1500 6.5L 395ci V8
- 1994-1995 Chevrolet K2500 6.5L 395ci V8
- 1994-1995 GMC C1500 6.5L 395ci V8
- 1994-1995 GMC C2500 6.5L 395ci V8
- 1994-1995 GMC G2500 6.5L 395ci V8
- 1994-1995 GMC K1500 6.5L 395ci V8
- 1994-1995 GMC K2500 6.5L 395ci V8
- 1994-1996 Chevrolet C1500 6.5L 395ci V8
- 1994-1996 Chevrolet G30 6.5L 395ci V8
- 1994-1996 GMC C1500 6.5L 395ci V8
- 1994-1996 GMC G3500 6.5L 395ci V8
- 1994-1997 GMC Yukon 6.5L 395ci V8
- 1994-1998 Chevrolet C2500 6.5L 395ci V8
- 1994-1998 Chevrolet K1500 6.5L 395ci V8
- 1994-1998 GMC C2500 6.5L 395ci V8
- 1994-1998 GMC K1500 6.5L 395ci V8
- ...and 24 additional applications
Enginetech piston ring sets are manufactured to OEM specifications and offered in both premium and cast grades to match the demands of stock rebuilds and moderate-performance builds. Each set is application-specific, with ring widths and end-gap characteristics matched to the bore and groove geometry of the engine family it serves. Ring sets are sold by bore size - standard for unmachined bores, with oversizes for blocks that have been bored and honed - so verify your finished bore diameter with a precision gauge before ordering, since rings sized for the wrong bore will not seal correctly. Always file-fit and gap each ring to the manufacturer's specification for your application, and replace rings as a complete set during any rebuild. Enginetech documents every set with the ring stack dimensions, bore size, and cross-references so the correct set reaches the bench the first time.
WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer, birth defects, or other reproductive harm.
