No hassle
returns
Live in-stock
inventory
Save over
60% retail
You have no items in your shopping cart.
June Sale: $142.26
In Stock
May ship from manufacturer
Free Shipping
Part number: 11103-8
Competitor Pricing
Product Details
Manley 11103-8 Headlight Assembly
Products specifications
Head Diameter 29mm
Margin .065"
O/A Length 101.52mm
Overall Valve Length (in) 3.996 in.
Overall Valve Length (mm) 101.5mm
Quantity Sold as a set of 8.
Seat Width .080"
Stem Diameter 6mm/.2362”
Swirl Polished Yes
Swirl-Polished Yes
Tip Length 3.5mm
Top of Head 20° Dish
Undercut Stem No
Underhead Angle/Radius 25° x 11/32"
Valve Head Diameter (in) 1.142 in.
Valve Head Diameter (mm) 29.0mm
Valve Head Style 20 degree dish
Valve Material XH-426 stainless steel
Valve Seat Width (in) 0.080 in.
Valve Stem Diameter (in) 0.236 in.
Valve Stem Diameter (mm) 6.0mm
Valve Tip Length (in) 0.138 in.
Valve Tip Length (mm) 3.50mm
Race Series Valves
Exhaust
Set of 8

Manley Performance Sport Compact stainless steel valves utilize our exceptional Race Series alloy and are manufactured to the highest quality standards.

Manley valves are designed to outflow and outperform all others even in the most severe environments. Manley stainless valves feature gorgeous yet durable chrome stems, swirl polished under heads, fully hardened tips, completely machined combustion faces, closely controlled margin heights, and exact stem to seat concentricity to render a finished product that is unsurpassed.

Manley intake valves typically are built with our original Pro-Flo design which reduces the stem diameter in the fillet area for increased airflow but also less valve weight.

In certain specific applications, Manley offers our Extreme Duty exhaust material. Our Extremealloy alloy offers more hot hardness and high temperature strength than our competitors offerings. This alloy is ideal for extremely high boosted applications where the exhaust gas temperatures reach what seem like unthinkable levels.

Manley stainless valves are suitable for all applications ranging from the mild street performer to the jaw dropping 1000+ horsepower race cars competing at the drag strip or drifting events.

Reviews
Add your review
K
Great price and fast shipping, very satisfied!
T
Best price for the item I needed. Very fast shipping and there consumer service was great on the phone.
C
Quick easy, save money and fast shipping
D
Very competive prices, even with shipping costs.  Looking forward to using Autoplicity again in the near future.
Show All Reviews
Fitment
Mazda Miata
2005 Mazda Miata ALL / Base / LS
2004 Mazda Miata ALL / Base / LS
2003 Mazda Miata ALL / Base / LS
2002 Mazda Miata ALL / Base / LS
2001 Mazda Miata ALL / Base / LS
2000 Mazda Miata ALL / Base / LS
1999 Mazda Miata ALL / Base / LS
1998 Mazda Miata ALL / Base / LS
1997 Mazda Miata ALL / Base / LS
1996 Mazda Miata ALL / Base / LS
1995 Mazda Miata ALL / Base / LS
1994 Mazda Miata ALL / Base / LS
Return Policy
Returns are easy at THMotorsports
Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy