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Manley 11457HT-8 Titanium Exhaust Valve Set Small Block GM Ford Chrysler Engine Camshaft

Manufacturer

Picture for manufacturer Manley

Part Number

11457HT-8
5 reviews
Sale Price

$1,411.30

Estimated ship date Wednesday, November 18

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Fitment guaranteed

Fitment guaranteed

Product Details

The Manley 11457HT-8 is a high-performance titanium exhaust valve kit engineered to reduce valve train weight and enhance engine efficiency for small block GM, Ford, and Chrysler applications. Designed specifically for high-rpm and extended high-rpm operation, these premium valves support higher engine speeds and aggressive camshaft profiles where reliability is critical.

Key Specifications:

  • Head Diameter: 1.625 inches
  • Stem Diameter: 0.3415 inches
  • Overall Length: 5.560 inches (plus 0.600 inches extended length)
  • Square keeper groove configuration

Premium Construction Features:

  • One-piece forged titanium construction with grain flow for superior durability—not a head welded to a stem
  • Micro-polished jewel-like surface finish that eliminates potential stress risers and increases fatigue strength
  • State-of-the-art CNC machining ensures exacting tolerances for optimal valve performance
  • HT suffix indicates high-temperature titanium alloy material for exceptional heat resistance
  • Exceptional titanium alloys balance hardness, ductility, and fatigue strength at elevated temperatures
  • Stringent quality control guarantees reliable performance and tight tolerance delivery

Manley Performance has been manufacturing race-proven engine internals since 1966, trusted by top engine builders who demand the highest quality products available. These titanium valves are ideal for racing applications, performance street builds, and any engine requiring reduced reciprocating mass and increased durability under extreme conditions.

Seller had the best price online for the item I wanted! Responded to emails within 24 hours as stated, and sent me my tracking info as soon as part shipped. Thanks Autoplicity!

Great experience.

Ordered a Trac-Bar from Autoplicity, and didn't have any problems. WILL be back!

Product (Dee-Zee nerf bars) was exactly as advertised. Buying experience was great. I did contact customer service via email to find out the shipping information. They were very helpful and replied within a few hours.

Hi - I just want to say what a great job your customer service person - Rob Fratu did for me. I purchased a set of Mickey Thompson Indy tires thru Autoplicity's internet site. To my misfortune; the tires were out-of date (manuf. in 2005)when they were shipped from the warehouse. One of the tires immediately began to split around the outerside wall once it was mounted. I emailed pictures to Rob ; and he took care of the entire situation and got 100% of my purchase refunded to me.<br>I want to thank Rob for all his assistance and for Autoplicity for taking care of the customer and standing behind their business!! I must admit - I was a little worried and expected the worst? thanks again - best regards - Willis Hiscock

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