Manley Performance 2.100in Head Diameter / 5.080in Length Titanium Intake Valves – Set of 8 | Multiple Fitments (11970TB-8) Manley Performance

Small Block Chevrolet AFR 210cc, 220cc, 227cc, 235cc, 245cc Eliminator Racing Heads Titanium Intake Valves – Set of 8 by Manley Performance

Manley titanium valves feature forged one-piece construction with grain flow, not a head welded to a stem. These jewel-like valves are machined in state-of-the-art CNC turning centers and valve stem grinders to exacting tolerances. Manley utilizes the finest titanium alloys for both the intakes and exhausts, providing the best balance of mechanical properties, hardness, ductility, and fatigue strength at the given temperatures.

All Manley titanium valves must pass their rigorous final inspection process, and strict quality control enables them to deliver parts within tight tolerance. Custom valves can be delivered within a very reasonable turnaround time. Seat coatings are also available on certain shelf stock part numbers, as well as on custom valves.

Features

• Head Diameter: 2.100”
• Stem Diameter: .3135″
• Installed Height: Stock
• O/A Length: 5.080”
• Tip Length: .290″
• Underhead Angle/Radius: 12° x 3/8”
• Margin: .070″
• Seat Width: .100
• Inserted hard tips
• Chevy LS (.060” single radius) style keeper grooves

Benefits

• High hardness and lubricity prevents valve seat face wear
• Prevents “trenching” of the seat face which maintains combustion seal
• Provides greater resistance to wear typically seen when valve float or dirt is present in the engine
• Better seal between the valve seat face and the seat in the cylinder head equals more horsepower

Please Note: Manley stem size is .3135”. AFR heads have guides sized to .3147” (nominal). Manley strongly recommends that all guides be checked and correctly sized for the Manley valve stem sizes listed to achieve the proper clearances.

Applications

• 1997–2013 Chevrolet Corvette
• 1998–2002 Pontiac Firebird Formula, Trans Am
• 1998–2002 Chevrolet Camaro Z28
• 1998–2002 Chevrolet Camaro SS
• 2010–2015 Chevrolet Camaro SS (manual only)
• 2004–2006 Pontiac GTO
• 2005–2006 Chevrolet SSR
• 2006–2009 Chevrolet TrailBlazer SS
• 2004–2007 Cadillac CTS-V
• 2007–2013 Cadillac Escalade
• 2008–2009 Chevrolet Tahoe
• 2007–2013 GMC Yukon Denali/Denali XL
• 2007–2013 GMC Sierra Denali
• 2008–2009 Hummer H2
• 2009–2013 Chevrolet Silverado 1500
• 2009–2013 GMC Sierra 1500

What’s In The Box?

• 8 – Valves

Warranty

• Manley products, due to their intended use, are sold without warranty.