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The GSC Power Division Ford Mustang 5.0L Coyote Gen 1/2 31.75mm Head (STD) Super Alloy Exhaust Valve - Set of 8 is a valves for an engine platform that requires exact vehicle and cylinder-head confirmation. Match manufacturer part number 2155-8, engine code, cylinder-head configuration, dimensions, position, material, and package quantity before ordering.
Key Features
- Precise Dimensions: 31.75mm (1.250in) head diameter, 110.49mm overall length, 7.97mm stem diameter matches OEM specs perfectly.
- One-Piece Forged Design: Delivers strength to prevent failure under high spring pressures and aggressive cam profiles.
- Set of 8 Exhaust Valves: Complete replacement for V8 Coyote Gen 1/2 improving exhaust flow and engine breathing.
- Inconel 751 Material: Handles extreme exhaust gas temperatures up to 1800°F for longer life in high performance applications.
- Swirl Polished Head: Reduces valve bounce and improves cooling through better heat dissipation during operation.
- Lightweight construction at 0.65 lbs total keeps rotating mass low for quicker revving.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| Verification required | Confirm vehicle | Confirm model | Match the exact engine platform, cylinder-head configuration, dimensions, and current GSC application before ordering |
Specifications
| Brand | GSC Power Division |
|---|---|
| Manufacturer Part Number | 2155-8 |
| Product Type | Valves |
| Fitment Type | Fitment Verification Required |
| Condition | New |
What's Included
One new GSC Power Division valves package identified by manufacturer part number 2155-8, in the size and quantity stated by the title. Springs, retainers, locks, valves, guides, seals, followers, shims, bearings, fasteners, gaskets, lubricants, and other assembly parts are included only when expressly listed for this exact part number.
About GSC Power Division
GSC Power Division develops performance camshafts, valves, valve guides, springs, retainers, seals, and related valvetrain components for import and domestic engine platforms.
Related GSC Power Division Products
- Shop all GSC Power Division products
- GSC P-D 12-13 Subaru/Scion BRZ/FR-S 21-4N Chrome Polished Intake Valve - 35mm Head (STD) - SET 8
- GSC P-D 12-13 Subaru/Scion BRZ/FR-S 21-4N Chrome Polished Intake Valve - 36mm Head (+1mm) - SET 8
- GSC P-D 12-13 Subaru/Scion BRZ/FR-S Chrome Polished Exhaust Valve - 29mm Head (STD) - SET 8
Frequently Asked Questions
Do these valves or guides install without machining?
Machining requirements depend on the exact cylinder head, component dimensions, oversize specification, and measured wear. A qualified machine shop should inspect and size the parts before assembly.
How do I confirm intake versus exhaust compatibility?
Match the exact GSC part number, position, stem and head dimensions, material, guide size, seal type, and package quantity. Intake and exhaust parts should not be interchanged without explicit GSC guidance.
What clearances must be checked during cylinder-head assembly?
Measure valve-to-guide clearance, installed height, retainer-to-seal clearance, coil bind, valve-to-piston clearance when applicable, and every current GSC and service-manual specification.
Installation Instructions
Follow current GSC Power Division instructions and the vehicle service manual for part number 2155-8. Have a qualified engine builder inspect the cylinder head and mating components, perform required machining, measure every specified clearance, verify timing and free movement, and use the correct lubrication, fasteners, torque procedures, and clean assembly practices before startup.
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