4.030" Bore - 5/64 - 5/64 - 3/16 Plasma Moly Piston Ring Set

Brand:	Speedmaster
Part Number:	PCE306.1003
Part Type:	Piston Ring
Bore (in):	4.030 in.
Top Ring Included:	Yes
Top Ring Thickness:	5/64 in.
Second Ring Included:	Yes
Second Ring Thickness:	5/64 in.
Oil Ring Included:	Yes
Oil Ring Thickness:	3/16 in.
Oil Ring Tension:	Standard
File Fit:	Yes
Gapless:	No
Top Ring Material:	Ductile iron
Top Ring Facing Material:	Plasma-moly
Second Ring Material:	Cast iron
Second Ring Facing Material:	Cast iron
Oil Ring Material:	Stainless steel
Quantity:	Sold as a set.

Speedmaster piston rings are designed to stand up to the rigor of racing and high-performance street use, while providing a long lasting life. Speedmaster piston rings feature: Plasma-moly coated, barrel-shaped, ductile iron top rings that seal against blow-by when the piston rocks in its bore; tapered secondary rings that seal against the oil control ring's upper surface for excellent oil control; and 3-piece oil rings with stainless steel expanders that provide accurate tension without the loss of any horsepower.