Speed Pro | Cast Piston Ring Set
The first to offer a reduced friction ring without sacrificing oil control. High grade materials with superior face coatings offer lower friction and long life. Chrome plated oil ring rails are pre-lapped for instant seating and long life. Perfect for heavy duty and high-performance applications.
Part Type: Piston Ring Set
Application: Chevrolet Small Block, Ford, & Chrysler
Bore Size (in): 4.030”
Bore Size (mm): 102.362mm
Piston and Ring Oversize (in): 0.030”
Piston and Ring Oversize (mm): N/A
File Fit: No
Gapless: No
Top Ring Thickness: 5/64"
Top Ring Material: Grey Iron w/ Phosphate Coating
Top Ring Face Design: Barrel Face
Second Ring Thickness: 5/64"
Second Ring Material: Grey Iron w/ Phosphate Coating
Second Ring Face Design: Reverse Torsional
Oil Ring Thickness: 3/16”
Oil Ring Material: Chrome Steel
Oil Ring Tension: Standard
Oil Ring Design: 3 Piece Flex Vent
Weight: 1.5 lbs
Manufacturer: Speed Pro
Manufacturer's Part Number: E251X-30
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Set |