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Manley 11870-8 Race Master Intake Valve Set Big Block Chevy 2.300in

(1997-2003 BMW 5 Series)

Manufacturer

Picture for manufacturer Manley

Part Number

11870-8
6 reviews
Sale Price

$188.69

In Stock (10+)

delivery box

Usually delivered within 2 days

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Product Details

The Manley 11870-8 Race Master intake valve set is engineered specifically for Big Block Chevy high-performance and racing applications. This professional-grade valve set delivers the durability and precision demanded by bracket racing, drag racing, and oval track competition.

Key Specifications:

  • Head diameter: 2.300 inches
  • Valve stem diameter: 0.342 inches (11/32 inch)
  • Overall length: 5.494 inches
  • Material: High-quality NK-842 stainless steel construction

Performance Features:

  • Chrome stems with hardened tips for enhanced wear resistance and longevity
  • Swirl polished under-head areas for optimized airflow
  • Fully machined combustion faces to maximize combustion efficiency
  • Straight stem Race Master design for consistent performance
  • Underhead/angle radius: 10 x 0.375 inches
  • Margin: 0.050 inches

Manley Race Master valves are constructed from premium stainless steel alloys that provide superior strength and durability in high-temperature, high-RPM racing environments. These valves are designed for engines operating under 8,000 RPM and are built to withstand the extreme conditions of competitive motorsports.

Products specifications

Fits

1997-2003 BMW 5 Series

Approximate Weight (g)

137

Lock Groove Quantity

1-groove

Lock Groove Style

Conventional

Notes

Underhead/angle radius 10 x .375 in. Margin 0.050 in.

Overall Valve Length (in)

5.494 in.

Overall Valve Length (mm)

139.548mm

Quantity

Sold as a set of 8.

Swirl-Polished

Yes

Undercut Stem

No

Valve Head Diameter (in)

2.300 in.

Valve Head Diameter (mm)

58.420mm

Valve Head Style

5 degree dish

Valve Material

NK-842 stainless steel

Valve Seat Width (in)

0.080 in.

Valve Stem Diameter (in)

0.342 in.

Valve Stem Diameter (mm)

8.686mm

Valve Tip Length (in)

0.250 in.

Valve Tip Length (mm)

6.350mm

very good prices. good service.I am a future customer.thanks.

Autoplicity has been quick to send updates on my order to my email.

Very, very good price on an item that I have been wanting for a very long time. I'll be sure to check here first when shopping for an item of interest! Thanks.

Great prices and FAST shipping!! Definitely will buy products here again!

Item was 40% less than the nearest competitors price, arrived quickly and was exactly what I ordered. Extremely pleased and would gladly order from Autoplicity.com again.

Good products with low prices. Easy website and pament options.

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