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Manley 11921B-8 Titanium Exhaust Valves 1.900" Bead Loc Pontiac Pro Stock

Manufacturer

Picture for manufacturer Manley

Part Number

11921B-8
8 reviews
Sale Price

$1,403.72

Estimated ship date Tuesday, November 17

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Featuring a 1.900" head diameter and .3415" stem diameter at stock installed height, these valves are purpose-built for serious race engines that demand maximum durability and reduced reciprocating mass.

Key Features:

  • Titanium Construction: Significant weight reduction over stainless valves, reducing valve train mass and enabling higher RPM operation
  • One-Piece Forged Design: Forged from a single billet with grain flow throughout — not a head welded to a stem — for superior strength and fatigue resistance
  • Micro-Polished Finish: Jewel-like surface finish eliminates potential stress risers and increases fatigue strength
  • Bead Loc® Keeper Grooves: Single-radius Bead Loc® groove design for positive keeper retention under extreme high-RPM conditions
  • Head Diameter: 1.900 in.
  • Stem Diameter: 0.3415 in.
  • Installed Height: Stock

Important Installation Notes: Bead Loc® valve locks are required and must be used with these valves. These valves do not include a hard tip — tip protection (wear cap) is required. Valve guides must be checked and correctly sized to achieve proper clearances for the listed stem diameter. Manley wear cap P/N 42104 or 42104TM is recommended.

Manley Performance has been a leading manufacturer of performance and racing valvetrain components for over four decades, and these titanium valves represent their commitment to precision, quality, and race-proven engineering.

Faster shipping than I expected. Easy order process. The ignition switch was my problem and Autoplicity part was exactly what I needed at a price better than anyone else had, with shipping included. I will definitely look to them again when I need any more parts for my Monte Carlo SS.<br>Only slight negative would be it took a few days to get an email with tracking number so I would know when my part would come. But once I got it, found it was coming sooner than I originally thought, which was great.

Great price and fast shipping. Good experience!

Very easy to order from this site. Great price and exactly what I was looking for. A pleasure to do business with.

Very fast shipping, the product should arrive today acording to UPS, and I order it 2 days ago. The customer service is also great.<br><br>Thanks again,

The shipping was fast and the customer service was great. I accidentally hit submit twice, and they promptly cancelled my accidental order. If you have any problems, just call!

So I have an old car. It's and 83, seven years older than me. I'm also a student so I don't have much money and need to make as many repairs myself to save money. I go out to the local pep boys and auto zone to to try to find a repair manual that is for my old model but it's not available. I check online and there are very few copies on line. Autoplicity had the right manual at the lowest price by a good margin. <br><br>TLDR; Autoplicity has EVERYTHING and at a cheaper price

Prompt order processing and shipping, the item I received came in good condition and I am eager to get it installed on my car. Over the phone customer support was prompt and polite, I would order from them again.

The magnaflow kit that I ordered was about $100 cheaper than any other site I could find. Shipping was fast, and relatively cheap too.

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