Manley Titanium Valves 11447T-8 VALVE-TI 1.625,+.600

SKU: MAN11447T-8

Valves

Manley Performance

Manley Titanium Valves 11447T-8 VALVE-TI 1.625,+.600

SKU: MAN11447T-8

Valves

Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

We accept

Description

Manley Titanium Valves are expertly designed to reduce valvetrain weight, improve efficiency, and excel in high-RPM applications. Lightweight yet incredibly strong, they enhance throttle response, power, and durability, making them the choice of performance enthusiasts and professional engine builders. Each valve features a one-piece forged titanium construction with superior grain flow to eliminate weak points and ensure long-term strength. State-of-the-art CNC machining and precision grinding deliver tight tolerances and consistent sealing for optimal engine performance. Crafted from premium titanium alloys, Manley valves achieve the perfect balance of hardness, ductility, and fatigue resistance under extreme temperatures. Every valve undergoes rigorous quality control and final inspection, guaranteeing unmatched reliability, precision, and consistency in the most demanding racing conditions. When performance matters, Manley Titanium Valves power the winners.

Part Type

Engine Exhaust Valve

Data: v4.2 - Upd: 2026-10-14 10:08:09

Features

Built for extreme RPM and aggressive cams
CNC machined for precision
Lightweight titanium reduces valvetrain mass and boosts efficiency
One-piece forged for strength
Premium alloys ensure durability
Rigorously inspected for reliability

Specifications

Product Attributes - Brand: Manley
Product Attributes - Manufacturer's Part Number: 11447T-8
Product Attributes - Part Type: Valves
Product Attributes - Product Line: Manley Titanium Valves
Product Attributes - UPC: 807298058078
Product Attributes - Valve Position: Exhaust
Product Attributes - Exhaust Valve Head Diameter (in.): 1.625 in.
Product Attributes - Exhaust Valve Head Diameter (mm): 41.275mm
Product Attributes - Exhaust Valve Stem Diameter (in.): 0.342 in.
Product Attributes - Exhaust Valve Stem Diameter (mm): 8.68mm
Product Attributes - Exhaust Overall Valve Length (in.): 5.560 in.
Product Attributes - Exhaust Overall Valve Length (mm): 141.224mm
Product Attributes - Undercut Stem: No
Product Attributes - Swirl-Polished: No
Product Attributes - Valve Tip Length (in.): 0.290 in.
Product Attributes - Valve Tip Length (mm): 7.366mm
Product Attributes - Valve Material: Titanium
Product Attributes - Lock Groove Quantity: 1-groove
Product Attributes - Lock Groove Style: Conventional
Product Attributes - Approximate Weight (g): 79
Product Attributes - Valve Head Style: 15 degree dish
Product Attributes - Valve Seat Width (in.): 0.100 in.
Product Attributes - Quantity: Sold as a set of 8.
Product Attributes - Notes: Underhead Angle 15° Radius 1/2 in. Margin .100

Reference Information

Brand Name/s	Manley Performance
StreetFX SKU	man11447T-8
SFX Item ID	4931300
Supplier Item Code	4931300
Manufacturer SKU	11447T-8
Manufacturer UPC	807298058078

Compatibility

Application Data

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1955
Ending Year	1957
Engine Type	V8
Engine Size	4.3L/265
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1957
Ending Year	1967
Engine Type	V8
Engine Size	4.6L/283
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1962
Ending Year	1969
Engine Type	V8
Engine Size	5.3L/327
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1964
Ending Year	1967
Engine Type	V8
Engine Size	5.4L/327
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1967
Ending Year	1969
Engine Type	V8
Engine Size	4.9L/302
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1967
Ending Year	2002
Engine Type	V8
Engine Size	5.7L/350
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1968
Ending Year	1973
Engine Type	V8
Engine Size	5.0L/307
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1970
Ending Year	1980
Engine Type	V8
Engine Size	6.6L/400
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1975
Ending Year	1976
Engine Type	V8
Engine Size	4.3L/262
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1976
Ending Year	2002
Engine Type	V8
Engine Size	5.0L/305
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHEVROLET
Beginning Year	1979
Ending Year	1982
Engine Type	V8
Engine Size	4.4L/267
Engine Family	Chevy small block Gen I
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHRYSLER
Beginning Year	1971
Ending Year	1980
Engine Type	V8
Engine Size	5.9L/360
Engine Family	Mopar small block LA
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	CHRYSLER
Beginning Year	1975
Ending Year	1989
Engine Type	V8
Engine Size	5.2L/318
Engine Family	Mopar small block LA
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	DODGE
Beginning Year	1964
Ending Year	1969
Engine Type	V8
Engine Size	4.5L/273
Engine Family	Mopar small block LA
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	DODGE
Beginning Year	1968
Ending Year	1973
Engine Type	V8
Engine Size	5.6L/340
Engine Family	Mopar small block LA
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	DODGE
Beginning Year	1968
Ending Year	1991
Engine Type	V8
Engine Size	5.2L/318
Engine Family	Mopar small block LA
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	DODGE
Beginning Year	1971
Ending Year	1991
Engine Type	V8
Engine Size	5.9L/360
Engine Family	Mopar small block LA
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	DODGE
Beginning Year	1992
Ending Year	2003
Engine Type	V8
Engine Size	5.2L/318
Engine Family	Mopar small block Magnum
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	DODGE
Beginning Year	1992
Ending Year	2003
Engine Type	V8
Engine Size	5.9L/360
Engine Family	Mopar small block Magnum
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	FORD
Beginning Year	1962
Ending Year	1963
Engine Type	V8
Engine Size	3.6L/221
Engine Family	Ford small block Windsor
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	FORD
Beginning Year	1962
Ending Year	1965
Engine Type	V8
Engine Size	4.3L/260
Engine Family	Ford small block Windsor
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	FORD
Beginning Year	1963
Ending Year	1969
Engine Type	V8
Engine Size	4.7L/289
Engine Family	Ford small block Windsor
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	FORD
Beginning Year	1968
Ending Year	2001
Engine Type	V8
Engine Size	5.0L/302
Engine Family	Ford small block Windsor
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	FORD
Beginning Year	1969
Ending Year	1997
Engine Type	V8
Engine Size	5.8L/351
Engine Family	Ford small block Windsor
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100

Valve Fitment	Search by engine
Make	FORD
Beginning Year	1980
Ending Year	1982
Engine Type	V8
Engine Size	4.2L/255
Engine Family	Ford small block Windsor
Valve Installed Length	Stock
Cylinder Head Type	Stock configuration
Application Notes	Underhead Angle 15° Radius 1/2 in. Margin .100