My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Manley 11123-12 Valvetrain

(2001-2005 Lexus IS300; 1992-2000 Lexus SC300; 1993-1998 Toyota Supra)

Manufacturer

Picture for manufacturer Manley

Part Number

11123-12
6 reviews
Sale Price

$316.72

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details
Race Series Valves
Exhaust
Set of 12

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.

Products specifications

Fits

2001-2005 Lexus IS300; 1992-2000 Lexus SC300; 1993-1998 Toyota Supra

Head Diameter

29mm

Margin

.065"

O/A Length

99.1mm

Overall Valve Length (in)

3.902 in.

Overall Valve Length (mm)

99.1mm

Quantity

Sold as a set of 12.

Seat Width

.080"

Stem Diameter

6mm/.2362”

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

Easy and simple, I like this ..

This site always has the best prices for the parts that I order.

Quick and easy, good price. Hopefully fast shipping.

Best price I could find on the net and super fast shipping.

I placed an order,18852,for a Husky Liner on June 19th and received it on June 21st. They have a great price and low cost shipping.

Very intuitive website, great experience so far.

Share icon
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