Silvo-Lite S1423.060 Cast Piston GM 327ci 5.4L V8 4.060" Bore Flat Top +0.060" Oversize

The Silvo-Lite S1423.060 is a single cast aluminum replacement piston designed for the General Motors 327 cubic inch (5.4L) V8 engine. Machined to a 4.060-inch bore diameter, this piston is sized at +0.060 inches over standard, making it the ideal choice for engines that have been bored to accommodate wear or to restore proper cylinder-to-piston clearance.

Key Features:

• Cast 332 Alloy Construction — durable cast aluminum alloy provides reliable strength for street and daily-driver applications
• Flat Top Head Design with 4 Valve Reliefs — maintains proper clearance with overhead valve configurations found in GM 327 small-block engines
• +0.060" Oversize Bore — engineered for cylinders bored 0.060" over standard; increases compression ratio approximately 1/4 ratio compared to standard bore
• Diamond-Finished Skirt — Silv-O-Lite's proprietary diamond finishing process cuts ellipse, taper, and barrel profile in a single operation for precise fitment and reduced break-in time
• Standard Ring End Gap — compatible with standard ring gap specifications, simplifying ring selection during engine assembly
• Single Piston — sold individually, allowing replacement of a single damaged or worn piston without purchasing a full set

The Silv-O-Lite S1423.060 is a trusted solution for engine rebuilders restoring GM 327 small-block V8 engines to factory tolerances. Manufactured by United Engine & Machine Co. (UEM), Silv-O-Lite pistons are engineered for street performance and general rebuild use. Not intended for racing applications.