Enginetech M92138-STD Piston Ring Set GM Cadillac 4.5L 4.9L V8 Standard Bore

The Enginetech M92138-STD is a premium standard-bore piston ring set engineered for GM and Cadillac V8 engines, specifically the 4.5L (273 cu. in.) and 4.9L (298 cu. in.) applications. Designed as a direct OE replacement, this ring set delivers reliable compression sealing, reduced oil consumption, and minimized blow-by during engine rebuilds.

Key Features:

• Ductile top ring construction for superior strength and durability over conventional cast iron rings
• Ring groove dimensions: 1.5mm / 1.5mm / 3.0mm (top compression / second compression / oil control)
• Produced in OE manufacturing facilities to meet or exceed original equipment specifications
• Compression rings made from high-quality gray iron, ductile iron, and high-strength steel
• Multiple face designs available including barrel face, taper face, positive twist, reverse twist, and Napier face profiles — applied where required by the application
• Face coatings include plasma moly, chrome, and stainless steel options depending on configuration
• Oil ring assembly engineered for ease of installation with expanders designed to prevent overlap during assembly
• Standard bore (STD) sizing — no overbore required
• Full set covers all cylinders in the V8 engine

Enginetech piston ring sets undergo rigorous quality assurance testing prior to leaving the facility, ensuring each set meets strict performance and dimensional standards. The M92138-STD is an ideal choice for engine rebuilders and professional mechanics restoring GM and Cadillac 4.5L or 4.9L V8 engines to factory specifications.