-24%
Manley Performance Manley Chevy LS-3/L-99 (L-92 Head) Small Block Race Flo Intake Valves (Set of 8)
Click to zoom in

Manley Chevy LS-3/L-99 (L-92 Head) Small Block Race Flo Intake Valves (Set of 8)

MAN11620-8
807298051185
Valves
20+ Units In Stock - Ships Next Business Day
$ 270.06 $ 202.55
$ 202.55

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

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Manley Performance

Manley Performance

Founded in 1966 by Hank Manley, Manley Performance Products has become one of the most respected names in high-performance engine components. Originally launched as Manley Speed Equipment, the company quickly earned a reputation for precision manufacturing, durability, and race-proven performance. From grassroots beginnings in New Jersey to global recognition in professional motorsports, Manley Performance continues to set the standard in high-performance automotive parts. Manley Performance Engine Parts Manley is known for manufacturing premium internal engine components designed for street, strip, and professional racing applications. Their product line includes: Manley stainless steel valves Manley forged pistons Manley connecting rods (H-Beam, I-Beam, Turbo Tuff, Pro Series) Manley camshafts Manley crankshafts Manley valvetrain components Valve springs, retainers, and hardware Every Manley component is engineered with strict quality control and race-driven innov...

View Manley Performance Products
Valves

Valves

Welcome to our Valves collection, where quality meets functionality. Our carefully curated selection includes a variety of valves suited for different applications and industries. Whether you are in construction, manufacturing, or plumbing, we have the perfect valve solutions for you. Why Choose Our Valves? High Quality: Each valve in our collection is manufactured to meet strict quality standards, ensuring durability and reliability. Wide Range: We offer a diverse range of valves. Competitive Pricing: Get the best value for your money with our competitively priced valves without compromising on quality. Expert Support: Our knowledgeable team is here to help you find the right valve for your specific needs.   Applications of Our Valves Our valves are versatile and can be used in a variety of engines for various makes and modles.  Shop Now! Explore our Valves collection today and find the perfect solution for your project. With our user-friendly Shopify store, shopping for valv...

View Valves Products
Valves & Components

Valves & Components

Browse all of our valves and valvetrain components at Black Ops Auto Works, including engine valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and related valvetrain hardware for performance builds, engine refreshes, and high-horsepower applications. Whether you are rebuilding a cylinder head, upgrading your valvetrain for higher RPM, or replacing worn valve train components, this collection is built for customers searching for engine valves, valve springs and retainers, valve cover gaskets, performance valve covers, and valvetrain upgrades. Shop Top Valvetrain Brands Find trusted brands in the valve and valvetrain category, including: GSC Power Division Supertech Brian Crower Ferrea Manley Performance Cometic Granatelli Moroso BLOX Racing   These brands are known for performance intake valves, exhaust valves, valve spring kits, titanium retainers, valve guides, valve locks, valve seals, billet valve covers, an...

View Valves & Components Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×