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Manley 11905-8 Race Master Exhaust Valves for Chrysler HEMI Engine Camshaft - 426

(2019-2024 Volkswagen Jetta)

Manufacturer

Picture for manufacturer Manley

Part Number

11905-8
15 reviews
Sale Price

$202.55

In Stock (10+)

delivery box

Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Manley 11905-8 Race Master exhaust valves are precision-engineered performance components designed specifically for Chrysler 426 HEMI engines. These high-quality valves are ideal for bracket racing, oval track competition, and high-performance street applications where reliability and durability are paramount.

Key Specifications:

  • Head Diameter: 1.940 inches
  • Stem Diameter: 0.3100 inches (standard)
  • Overall Length: Stock height
  • Material: XH-426 stainless steel construction
  • Chrome stems with hardened valve tips
  • Swirl polished under head areas
  • Fully machined combustion faces
  • Set of 8 valves

Race Master Features:

  • Straight stem design optimized for racing applications
  • Superior airflow and combustion efficiency
  • Enhanced wear resistance and longevity
  • Recommended for alcohol engine exhaust applications
  • Top of head features 17-degree dish profile
  • Underhead angle/radius: 22? x 1/4 inch

Manley Performance has earned its reputation as a leading manufacturer of racing valves through an unwavering commitment to quality. Each Race Master valve undergoes precise manufacturing processes to ensure consistent performance under the extreme conditions of racing and high-performance street use. The stainless steel construction provides excellent heat resistance and durability, while the chrome stems and hardened tips extend service life even in demanding applications.

Products specifications

Fits

2019-2024 Volkswagen Jetta

Approximate Weight (g)

133

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Overall Valve Length (in)

4.915 in.

Overall Valve Length (mm)

124.841mm

Quantity

Sold as a set of 8.

Swirl-Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

1.940 in.

Valve Head Diameter (mm)

49.276mm

Valve Head Style

17 degree dish

Valve Material

XH-426 stainless steel

Valve Seat Width (in)

0.100 in.

Valve Stem Diameter (in)

0.310 in.

Valve Stem Diameter (mm)

7.874mm

Valve Tip Length (in)

0.250 in.

Valve Tip Length (mm)

6.350mm

Easy so far

good

easy to order

Fast shipping. Good price.

Good first experience, will shop here again.

Site was a bit confusion making sure the parts I ordered would fit my vehicle. I understand some parts are widely used across but for the Challenger Hellcat I know for a fact that the brake pads for it and the other challenger lines are not the same. So worried about the rotors as well - we will see when they arrive.

This company is pretty good even when I found what I was looking for cheaper then some other websites

They had the Piaa lights I wanted at the best price on the web. The best part is they have the part and in stock. Other companies pass your order to the manufacturer and charge you more. Very good company to deal with on the web.<br>

I searched the web looking for the best prices on some spark plugs and Autoplicity was the cheapest. Thanks for the fast shipping.

Thanks Autoplicity you had the best prices I could find, fast shipping, and everything I ordered was exactly what I was looking for! Great Customer Service!

My shopping was easy,fast and prices are great thanks

Great prices on a great product. Easy to navigate website! will be using them in the future for any additional parts I may need!

Great seller! Best price on the item I was looking to buy. Fast shipping too!

Super fast shipping, exactly as ordered, no drama, problems or complications

Purchased K&N Filter. Excellent price and received filter as scheduled.

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