What is the correct ring gap for these pistons?

The ideal ring gap is typically around .004 to .005 inches per inch of bore diameter. Always consult the specific engine build recommendations and manufacturer instructions for precise gapping.

Are these rings suitable for all types of engine builds?

These rings are designed for a 4.040" bore with a .043" top ring and 3mm oil ring, making them a solid option for many performance rebuilds. However, compatibility depends on the specific piston and overall engine design.

Specifications

Brand: Manley Performance
Part #: 46214-8
UPC: 807298041063

Manley Piston Ring, RING-4.040 .043, 3mm

Name: Manley Piston Ring, RING-4.040 .043, 3mm
Brand: Manley Performance
SKU: manley-performance-manley-piston-ring-ring-4-040-043-3mm-t14-881698
Price: 313.70 USD
Availability: BackOrder

$313.70

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Performance piston rings for a 4.040" bore. These .043" top rings and 3mm oil rings are built for performance.

Key Features

Fits engines with a 4.040 inch bore.
Features a .043 inch top ring for effective sealing.
Includes a 3mm oil ring for efficient oil control.
Manley Performance is known for well-built engine components.
Designed for engine rebuilds where precise sealing is important.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

If you're rebuilding the top end of your engine, getting the right piston rings is crucial for sealing combustion and managing oil. These Manley Performance rings are designed for a 4.040 inch bore, featuring a .043 inch top ring and a 3mm oil ring. This setup is popular for builds where a good balance of sealing and oil control is needed.

Manley builds these rings with durability in mind, using materials and manufacturing processes that stand up to the demands of an engine rebuild. The precise sizing ensures a proper fit within the cylinder bore, which is key for optimal compression and preventing blow-by. Getting the ring gap set correctly, usually around .004 to .005 inches per inch of bore diameter, is a critical step during installation to allow for expansion under heat.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for specific details on gapping and fitting.