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Manley 42139-8 Valve Lash Caps

Part of: Manley Valve Caps

Other options in this family: Manley 42118-8 Manley 42263-8 Manley 42100-8 Manley 42125-8 Manley 42254-8

Manufacturer

Picture for manufacturer Manley

Part Number

42139-8
5 reviews
Sale Price

$28.88

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Manley 42139-8 lash caps are precision-machined valve train components designed to correct valve stem height in high-performance engine builds. These lash caps install on top of the valve stem to adjust valve geometry when using aftermarket camshafts, cylinder heads with increased machining, or when correcting for valve tip wear.

Key Features:

  • Precision-machined from high-quality steel for durability and consistent performance
  • Allows fine-tuning of valve train geometry for optimal rocker arm contact
  • Essential for correcting valve stem height discrepancies in performance builds
  • Manufactured by Manley Performance to strict quality standards
  • Available in various thicknesses to accommodate different valve height requirements

Proper valve train geometry is critical for maximizing engine performance and longevity. These lash caps provide an effective solution for ensuring correct rocker arm-to-valve stem contact angles in modified engines.

Products specifications

Lash Cap Material

Steel

Lash Cap Thickness (in)

0.080 in.

Quantity

Sold as a set of 8.

Valve Stem Diameter

5/16 in.

More ratings of customer long term experience with product would help with buying confidence. Rec'd. product: the finish on the chrome/steel Curt 22110 hitch cover is not as smooth as expected for a brand new product; looks like the surface preparation b

quick and easy

Quick shipping and a part that worked.<br><br>order 104-9436863-0564219

I am extremely satisfied with Autoplicity in terms of service, price, and shipping. I was shopping for a set of N-FAB step bars for my truck and was ready to purchase from Amazon when I decided to look around to see if there were better prices. I stumbled upon Autoplicity and was surprised to see their price on the bars. I checked with their online chat customer service to confirm that they would fit my truck and that the price was for a pair of the bars and not just one. (That's how low the price was!). I then placed my order and the bars arrived at my doorstep 3 days later! Autoplicity gets an A+ in my book and I'll definitely be coming back.

Very fast shipping and price is rite

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