-24%
Click to zoom in
The Manley Performance engine valve identified by manufacturer part number 11620-8 is engineered for a measured performance-engine assembly. Final compatibility depends on the exact engine, mating components, and verified dimensions, not a similar product title alone.
Key Features
- Race Flo Shape: 2.165 inch diameter 5.000 inch overall length 55 degree angle boosts high RPM performance.
- Stainless Steel Construction: NK-842 material provides strength and corrosion resistance for long life in high heat.
- Chrome Stems and Hard Tips: 8mm stems with chrome plating and stellite tips resist wear from guides and seats.
- Swirl Polished and Fully Machined: Underhead swirl polish and machined faces promote smooth flow and efficient burn.
- 2.165 inch head 5.000 inch length 0.312 inch 8mm chrome stem NK stainless steel swirl polished.
- Set includes 8 intake valves part number 11620-8 for complete cylinder head coverage.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2007-2008 | Cadillac | Escalade | Verify exact engine and component dimensions |
| 2007-2008 | Cadillac | Escalade ESV | Verify exact engine and component dimensions |
| 2007-2008 | Cadillac | Escalade EXT | Verify exact engine and component dimensions |
| 2007-2008 | GMC | Yukon | Verify exact engine and component dimensions |
| 2007-2008 | GMC | Yukon XL 1500 | Verify exact engine and component dimensions |
| 2008 | Hummer | H2 | Verify exact engine and component dimensions |
Specifications
| Brand | Manley Performance |
|---|---|
| Manufacturer Part Number | 11620-8 |
| Product Type | Engine Valve |
| Fitment Type | Vehicle Specific |
| Condition | New |
| Quantity | 8 |
What's Included
One new Manley Performance engine valve in the exact quantity and configuration stated in the specifications. Bearings, rings, pins, locks, fasteners, and installation hardware are included only when expressly listed for this part number.
About Manley Performance
Manley Performance engineers connecting rods, pistons, crankshafts, valves, valvetrain components, and related hardware for professional street, racing, and forced-induction engine builds.
Related Manley Performance Products
- Shop all Manley Performance products
- Manley Chevy LS-3/L-99 (L-92 Head) Small Block Race Master Exhaust Valves (Set of 8)
- Manley Chevy LS-3/L-99 Small Block Severe Duty Exhaust Valves (Set of 8)
- Manley Small Block Chevy LS-1 / LS-2 (LS-6 Head) 2.000 Head Diameter Race Flo Intake Valves
Frequently Asked Questions
Will Manley 11620-8 fit my 2007-2008 Cadillac Escalade?
That vehicle range is listed, but compatibility also depends on the exact engine code, bore, stroke, mating components, clearances, and current Manley application notes.
What specifications must match for this engine valve?
Confirm every listed dimension, material, quantity, engine interface, mating component, and current Manley application note. Similar-looking engine components are not automatically interchangeable.
Is professional installation recommended?
Yes. A qualified engine builder should inspect the component, measure the engine and mating parts, verify all clearances, and follow current Manley and engine-manufacturer procedures.
Installation Instructions
Use the current Manley instructions for part number 11620-8 and the engine builder's measured assembly specifications. Verify material, orientation, machining, clearances, fastener procedure, lubrication, balance, torque or stretch values, and break-in before operation.
Engine
Shop automotive engine parts, cooling-system components, oil-system upgrades, ignition parts, pulleys, sensors, gaskets, fuel components, and engine-bay accessories at Black Ops Auto Works. This collection covers vehicle-specific replacement parts, performance upgrades, supporting hardware, and universal components for street cars, trucks, SUVs, Jeeps, diesel vehicles, off-road builds, and motorsport applications. Engine Parts and Performance Components The Engine collection brings together components used throughout the engine, lubrication system, cooling system, ignition system, fuel system, crankcase ventilation, accessory drive, and engine compartment. Available products range from replacement sensors and gaskets to rotating-assembly parts, performance cooling systems, supercharger pulleys, catch cans, cylinder heads, camshafts, intake manifolds, and engine-bay dress-up components. Engine compatibility cannot be determined from vehicle model alone. Confirm the exact year, make, ...
View Engine Products
Manley Performance
Shop Manley Performance pistons, connecting rods, crankshafts, valves, valvetrain components, piston rings, wrist pins, and engine hardware by exact manufacturer part number and verified application. Choosing the Correct Manley Performance Component Performance-engine parts must be selected from measured specifications. Match the exact Manley part number, engine code, bore, stroke, journal, pin, fastener, material, and package configuration before ordering. Confirm the exact engine family and current Manley application notes Match all critical dimensions and mating components Verify material, coating, fastener, and intended power level Confirm whether bearings, rings, pins, locks, or hardware are included Use professional machining, balancing, and measured assembly clearances Related Engine Collections Pistons Connecting Rods Crankshafts Piston Rings Frequently Asked Questions How do I confirm a Manley engine component fits my build?Match the exact part number, engine code, bor...
View Manley Performance Products