Manley Performance 30mm Race Flo Intake Valves – Set of 8 | 1988-1991 Honda CRX Si / Civic (11386-8) Manley Performance

1988-1991 Honda CRX/Civic Race Master Intake Valves – Set of 8 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: 30mm
• Stem Diameter: 5.48mm / .2157”
• O/A Length: 115.00mm
• Tip Length: 4.1mm
• Underhead Angle/Radius: Pro Flo 22° x 5/16”
• Margin: .050”
• Seat Width: .075”
• Top Of Head: 17° Dish
• NK-842 Stainless Intake Material
• Chrome Stems and Hard Tips
• Swirl Polished and Fully Machined

Benefits

• Up to 40% flow increase in small port OE style cylinder heads
• Proven performance improvement on the flow bench

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

Applications

• 1990-1991 Honda Civic EX
• 1988-1991 Honda CRX Si

What’s In The Box?

• 8 – Intake Valves

Warranty

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