Speedmaster®
Chevy LS1 LS6 1.570" STD 8mm Stainless Steel Exhaust Valves
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Product Information
Overview
When it's time for valves, don't cut corners. Get genuine Speedmaster stainless steel valves. They're made from a tough, stainless steel alloy and are carefully designed to increase gas flow for more power. What's more, they have hardened stem tips for durability and are swirl-polished.
Specs
| Brand: | Speedmaster |
| Part Number: | PCE273.1013 |
| Part Type: | Exhaust Valve |
| Valve Head Diameter (in): | 1.570 in. |
| Undercut Stem: | Yes |
| Swirl-Polished: | Yes |
| Overall Valve Length (in): | 4.930 in. |
| Valve Stem Diameter (in): | 8.000mm (0.314 in.) |
| Valve Tip Length (in): | 0.170 in. |
| Valve Material: | stainless steel |
| Lock Groove Quantity: | 1-groove |
| Lock Groove Style: | Conventional |
| Quantity: | Sold as a set of 8. |
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.