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SKU: 11620-8 | UPC: 807298051185
Manley Chevy LS-3/L-99 (L-92 Head) Small Block Race Flo Intake Valves (Set of 8) Fits 2007-2008 Cadillac Escalade GMC Yukon Denali
Manley Race Flo intake valves set of 8 upgrade Chevy small block LS-3/L-99 engines with L-92 rectangular port heads. These valves fit 2007-2008 Cadillac Escalade GMC Yukon Denali Hummer H2 and similar models with L92/LS3 heads. Chrome stems and swirl polished faces deliver reliable airflow and combustion in racing builds.
Key Features
- 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
- Race Flo Shape: 2.165 inch diameter 5.000 inch overall length 55 degree angle boosts high RPM performance
- Alcohol Engine Compatible: Handles methanol and aggressive fuels without failure in competition use
Product Notes
- Set includes 8 intake valves part number 11620-8 for complete cylinder head coverage
- Inspect valve guides and seats before installation for proper clearance
- Ships in protective packaging weighs 1.65 lbs box measures 7 x 5.8 x 1.3 inches
Installation Notes
- Professional installation recommended.
- Perform valve job with three-angle seats for optimal sealing and flow
- Matches stock or performance retainers springs locks if 8mm stem compatible
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2008 | Cadillac | Escalade | Base |
| 2007-2008 | Cadillac | Escalade ESV | Base |
| 2008 | Cadillac | Escalade ESV | Platinum |
| 2007-2008 | Cadillac | Escalade EXT | Base |
| 2007-2008 | GMC | Yukon | Denali |
| 2007-2008 | GMC | Yukon XL 1500 | Denali |
| 2008 | Hummer | H2 | Base |
Why Choose Manley?
- Proven in NHRA IHRA drag racing and circle track
- Hand-finished for consistent tolerances under stress
- Engineered with flow bench data for real track gains
Frequently Asked Questions
-
Q: Do these fit LS3 or L92 heads only?
A: Yes designed for Gen IV LS rectangular port L92 LS3 L99 heads 6.0L 6.2L truck and car applications -
Q: What are the exact dimensions and material?
A: 2.165 inch head 5.000 inch length 0.312 inch 8mm chrome stem NK stainless steel swirl polished -
Q: What warranty applies and are seals included?
A: Limited lifetime against manufacturing defects seals and springs sold separately
Shipping & Handling
- Method: UPS or FedEx ground
- Availability: In stock - ships same or next business day
- Packaging: Secure valve box 7 x 5.8 x 1.3 inches
- Weight: 1.65 lbs
Manley Performance
Manley Performance is a New Jersey-founded engine internals manufacturer stocked at Black Ops Auto Works, supplying forged pistons, connecting rods, valves, and crankshafts across domestic and import platforms. Shop Manley H-Beam and H-Tuff connecting rods, Race Master Series valves, forged crankshafts, and valve springs for Ford Modular and Coyote, Chrysler HEMI, Subaru EJ and FA, Nissan SR20 and 2JZ, Honda B and H-series, and Mitsubishi 4B11T and Mazda MZR platforms. Every product is filterable by year, make, model, and engine code so the correct part ships the first time. Black Ops Auto Works carries 270 Manley Performance SKUs across pistons, rotating assembly, and valvetrain components. About Manley Performance Founded in 1966 by Hank Manley as Manley Speed Equipment, Manley Performance has grown into one of the most established names in high-performance engine internals. From grassroots drag racing roots in New Jersey to a second manufacturing facility in Orange, Californi...
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