Enginetech R10256-STD Cast Standard Piston Ring Set for 1985-1995 Chevy GMC Oldsmobile 4.3L 262ci V6 - Complete Engine Ring Set

Enginetech R10256-STD is a cast standard bore piston ring set for 1985-1995 Chevy, GMC, Oldsmobile 4.3L 262ci V6 engines, sold as a complete set covering all cylinders.

Important Notes:

• Sized for standard (unmachined) cylinder bores. Verify your finished bore diameter with a precision gauge before ordering.
• 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.
• Cast. 5/64 5/64 3/16. Shallow oil ring.
• Except Cast. 5/64 5/64 3/16 Shallow oil ring.

Sold as a complete piston ring set - one set covers all cylinders and is required per engine.

Fitment:

• 1985-1985 Chevrolet Astro 4.3L 262ci V6
• 1985-1985 Chevrolet K10 4.3L 262ci V6
• 1985-1985 Chevrolet K20 4.3L 262ci V6
• 1985-1985 GMC K2500 4.3L 262ci V6
• 1985-1985 GMC Safari 4.3L 262ci V6
• 1985-1986 Chevrolet C10 4.3L 262ci V6
• 1985-1986 Chevrolet C20 4.3L 262ci V6
• 1985-1986 Chevrolet G10 4.3L 262ci V6
• 1985-1986 Chevrolet G20 4.3L 262ci V6
• 1985-1986 Chevrolet G30 4.3L 262ci V6
• 1985-1986 GMC C1500 4.3L 262ci V6
• 1985-1986 GMC C2500 4.3L 262ci V6
• 1985-1986 GMC G1500 4.3L 262ci V6
• 1985-1986 GMC G2500 4.3L 262ci V6
• 1985-1986 GMC G3500 4.3L 262ci V6
• 1985-1986 GMC K1500 4.3L 262ci V6
• 1985-1987 Chevrolet El Camino 4.3L 262ci V6
• 1985-1987 GMC Caballero 4.3L 262ci V6
• 1985-1990 Chevrolet P40 4.3L 262ci V6
• 1986-1994 Chevrolet Astro 4.3L 262ci V6
• 1986-1994 GMC Safari 4.3L 262ci V6
• 1987-1987 Chevrolet R10 4.3L 262ci V6
• 1987-1987 Chevrolet V10 4.3L 262ci V6
• 1987-1987 GMC R1500 4.3L 262ci V6
• 1987-1987 GMC R2500 4.3L 262ci V6
• 1987-1987 GMC V1500 4.3L 262ci V6
• 1987-1988 Chevrolet R20 4.3L 262ci V6
• 1987-1990 GMC P4500 4.3L 262ci V6
• 1987-1995 Chevrolet G10 4.3L 262ci V6
• 1987-1995 Chevrolet G20 4.3L 262ci V6
• ...and 29 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.