Speedmaster®
4.600" Bore - 1.5 - 1.5 - 3mm Plasma Moly Piston Ring Set - Zero Gap
Product Information
Overview
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.
Specs
| Brand: | Speedmaster |
| Part Number: | PCE306.1062 |
| Part Type: | Piston Ring |
| Bore (in): | 4.600 in. |
| Top Ring Included: | Yes |
| Top Ring Thickness: | 1.5mm |
| Second Ring Included: | Yes |
| Second Ring Thickness: | 1.5mm |
| Oil Ring Included: | Yes |
| Oil Ring Thickness: | 3.0mm |
| 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. |
Warranty Information
12-Month Limited Worldwide Warranty
Prop 65 Warning
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Installation Guide
Our AI assistant generates a step-by-step guide for this product — covering installation, maintenance, and troubleshooting.
This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.