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(5.0) 195+ Trusted Customer Reviews

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Manley 11397-1 Manley Valve - Exhaust, Valve-S/D 1.625,+.600.

by Manley
SKU ds_BBPB_11397-1

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Original price $66.06 - Original price $66.06
Original price $66.06
$66.06
$66.06 - $66.06
Current price $66.06
Description
Discover the pinnacle of performance and racing excellence with Manley's Severe Duty? Valves. Exhaust valves crafted from XH-428 material and Intake valves from NK-844 material, these valves stand as a testament to our unwavering commitment to superiority in the industry. Severe Duty? Valves outshine the competition in every aspect.

Specifications

Description_DEF Engine Exhaust Valve
Description_DES Manley Valve - Exhaust, Valve-S/D 1.625,+.600
Description_EXT Manley Valve - Exhaust, Valve-S/D 1.625,+.600.
Description_FAB
  • Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust valves, tested at 40,000 psi and 1400?F, impressively endured up to 100,000,000 (one hundred million) cycles. In contrast, competitors' offerings failed after just 100,000 cycles, showcasing a staggering 1000 times better fatigue life.
  • Designed for High Temperature Gasoline Engines: Engineered for superior performance in high-temperature gasoline engines.
  • Chrome Stems and Hard Tips: Incorporating chrome stems and hard tips for enhanced durability and longevity.
  • Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow and combustion efficiency.
  • XH-428 for Exhaust: No competitor worldwide offers the exceptional XH-428 as exhaust valve material. It boasts nearly double the ultimate tensile strength at 1500?F compared to the competition's EV-8.
  • NK-844 for Intake: Our intake valve material, NK-844, is equally unmatched, displaying over four times the ultimate tensile strength of the competition's best intake valve material at 1000?F.
Description_INV Valve-S/D 1.625,+.600
Description_MKT Discover the pinnacle of performance and racing excellence with Manley's Severe Duty? Valves. Exhaust valves crafted from XH-428 material and Intake valves from NK-844 material, these valves stand as a testament to our unwavering commitment to superiority in the industry. Severe Duty? Valves outshine the competition in every aspect.
Description_SHO Valve - Exhaust
Engine Small Block
Engine Type ICE
height 2.5
length 7.0
LTL N
Make Chevrolet
Product Type Engine Exhaust Valve
Prop 65 (C, R or CR) CR
Prop 65 - Short Label Prop 65 Warning Label.JPG
Prop 65 Yes/No Yes
Stem Diameter 0.311
Tip Length 0.290
Title Manley Valve - Exhaust, Valve-S/D 1.625,+.600
weight 0.5
width 2.5
Fitment
Here's What OUR CUSTOMERS Have to Say:

Since 2018, We've Shipped Over 35,000 Automotive Parts to our Customers.

4.6/5

+2900 Verified Reviews

Easy to find and order. Customer service was responsive and helpful. It fit my vehicle and is protecting the back of it very well

Specific parts for my vehicle were easy to find Shipping was good and website is clear and easy to use

Very happy with the running boards, and the shipping was prompt.

Super easy, discount code worked well for my order

I will buy from here again.

Easy to use site, comprehensive descriptions. Relevant results

Quick shipping, good prices. Great selection of products.

Super easy, discount code worked well for my order

Easy buying process. Fast shipping. Lots of selection!

Great prices looking forward for possible tonneau cover from your site

Quick response and went the extra mile to answer my questions. Very professional and knowledgeable, having nothing but good things to say about the team at TPS

Fast and Quick,easy to understand The product was excellent and packaged extremely well, I would recommend them to all my friends.

The staff was very helpful and the price point is fair. Rafael was very accomodating and responsive to request to cancel order and reorder a different tuner.

Excellent service and price is good too Thanks.

Good service !

Purchasing process was extremely fast and simple, and the product came on time. 5/5 stars.

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How do I know if a part fits my truck?

Use our vehicle filter by entering your truck’s year, make, and model. If you're unsure, our support team is happy to help.

Where in the US do you ship to?

We ship to all of the continental US except California - we do not ship to the states of Alaska and Hawaii, or to Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands.

How long will it take to receive my order?

Delivery times vary depending on your location and item availability. Most orders arrive within 2–7 business days.

What is your return policy?

We accept returns within 30 days of delivery, as long as the item is unused and in its original packaging.

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