Manley Performance Triple Groove 48mm Race Master Intake Valves – Set of 4 | 1968–1974 Volkswagen Type IV (11658-4) Manley Performance

1968–1974 Volkswagen Type 4 Triple Groove Race Master Intake Valves – Set of 4 by Manley Performance

Race Master, and the Pro Flo versions identified as Race Flo valves, are manufactured of XH-426 material for the exhausts and NK-842 for the intakes. This series of valves is targeted at the bracket, drag and oval track racers operating below 8000 rpm – above which engine speed titanium valves are generally required.

Any engine builder successfully using EV-8 alloy ( 21-4N ) valves will find in this series of Manley valves a superior piece at a most attractive price. The Ultimate Tensile Strength charts on this page and the next, show the Manley Race Series to be equal to the best that the competitors have to offer.

Features

• Head Diameter: 48mm
• Stem Diameter: .3130”
• Installed Height: Stock
• O/A Length: 4.606″
• Tip Length: .170″
• Underhead Angle/Radius: 10° x 3/8”
• Margin: .060″
• Seat Width: .075”
• Top Of Head: 5° Dish
• Swirl Polished and Fully Machined
• Chrome Stems and Special Hard Tips
• Hardened Keeper Grooves
• NK-842 Stainless Intake Material

Benefits

• Best for drag and oval track racers operating below 8000 rpm – above which engine speed titanium valves are generally required
• Equal to the best that the competitors have to offer

Please Note: The image provided is generic and may not be an accurate representation of the product you will receive

Applications

• 1968–1974 Volkswagen Type 4

What’s In The Box?

• 4 – Valves

Warranty

• Manley products, due to their intended use, are sold without warranty.