*** 4.375" CURRENTLY OUT OF STOCK *** RBS is now stocking one of the best set of piston rings on the market for the racers engine. Top ring is .017" Dykes ductile iron Phosphate coated, second ring is 1/16th ductile iron THG Napier Phosphate coated and the third ring is 3/16" high tension CP20.
Each set includes eight oil rings, eight top and eight second rings. Rings are available in 4.187', 4.310", 4.375", 4.467" and many other sizes.
Prices vary per bore and application so email or call with application for price. Racer can choose from drop down menu for common bore sizes.