Other products by MANLEY
Item #: MAN11507-8
Our Price: USD $486.40


Extreme Duty Inconel Valves

Head Diam.: 1.900
Stem Diam.: .3715
Installed Height: Stock

Teague Custom Marine uses Manley Severe Duty Intake Valves and Extreme Duty Inconel Exhaust Valves in all high performance pleasure and race applications where stainless steel valves are used. Manley introduced this line of high performance valves in response to an epidemic of failures with stock and competitor’s valves. Inconel has demonstrated its superiority at the elevated operating temperatures in extreme racing conditions, such as offshore. Manley intake valves are manufactured with NK844 materials, where its strength and toughness combats the fatigue and cracking frequently experienced with other manufacturers' copies.

TCM Complete heads include :

Competition Valve Job
Intake Valve, 2.300” stainless steel
Exhaust Valve, 1.900” stainless steel
Hyd. or Solid Roller Valve Springs with dampner
10° Chrome Moly Retainers
10° Chrome Moly Valve Locks
PC Valve Seals
Hardened Shims
Valve Seats
Bronze Valve Guides
Guide Plates
ARP Rocker Studs
All Accessory Holes are Predrilled & Tapped!
Spark Plug Starting Range - Champion C59C
Standard combustion chambers are 119cc and 121cc after CNC.

Extreme Duty Inconel Valves, Stock 11/32” & 3/8” Stem Diameters • XH-430 Inconel Exhaust Material • Swirl Polished and Fully Machined • NK-844 Intake Material • Chrome Stems and Hard Tips

Type: Exh.
Head Diam.: 1.900
Stem Diam.: .3715
Installed Height: Stock
O/A Length: 5.354
Tip Length: .220
Underhead Angle/Radius: .220
Margin: .065
Seat Width: .100
Top of Head: 6º Dish
Wgt/Grams: 140


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