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Manley 11998B-8 Titanium Intake Valve Set 2.400" Head 5.700" Length AJPE 4/5

Part of: Manley Titanium Intake Valve

Other options in this family: Manley 11482T-1 Manley 11944TB-8 Manley 11490B-8 Manley 11954B-8 Manley 11962HTBC-8

Manufacturer

Picture for manufacturer Manley

Part Number

11998B-8
6 reviews
Sale Price

$1,288.66

2 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

Featuring a 2.400" head diameter and a 5.700" overall length, these valves are built to the exacting tolerances demanded by top-tier drag racing programs including Top Fuel and Funny Car builds.

Key Specifications:

  • Valve Type: Intake
  • Head Diameter: 2.400 in.
  • Stem Diameter: 0.3415 in.
  • Overall Length: 5.700 in.
  • Installed Height: 0.100 in. longer than stock
  • Tip Length: 0.250 in.
  • Weight: 142 grams per valve
  • Keeper Groove: Bead Loc single-radius groove
  • Application: AJPE 4/5

Key Features:

  • One-Piece Forged Construction: Forged from a single billet with continuous grain flow — not a head welded to a stem — for maximum structural integrity and fatigue resistance
  • Premium Titanium Alloy: Manley selects the finest titanium alloys to deliver an optimal balance of mechanical strength, hardness, ductility, and high-temperature fatigue resistance
  • CNC Precision Machined: Each valve is machined in state-of-the-art CNC turning centers and valve stem grinders to maintain exacting tolerances
  • Micro-Polished Finish: The mirror-like surface finish eliminates potential stress risers and enhances fatigue strength
  • Bead Loc Keeper Groove: Features Manley's Bead Loc single-radius keeper groove for a secure, positive retainer lock under extreme RPM conditions
  • Rigorous Quality Control: Every valve passes Manley's stringent final inspection process before leaving the facility

Important Notes: Part numbers without a "T" suffix do not include a hard tip insert — tip protection is required. Use Manley wear cap P/N 42104 or 42104TM. The "B" suffix designates the Bead Loc keeper groove style.

good customer service

Purchased my mishimoto heat tape. Cheapest price around and the shipment was delivered in a very reasonable time. Couldnt be happier

Very fast shipping, always great prices.

Nice and easy

I'll admit to being skeptical at first, but the price was worth the risk. Turned out to be one of the best online transactions I've experienced. Received item 3 days after purchaseing and the best price I found. And I looked hard! A+

Rather amazing and uneventful service in this day and age. Ordered a Thule bike rack for my Nissan Murano. It was in stock (unusual for high-end specialty products), shipped the next day, and was on my doorstep in a few days (excellent for a 60 lb. large box). I'd buy anything from these people without any reservation. AND, your order is insured - completely superfluous. Oh, and did I mention, the lowest price I could find ANYWHERE, and not by a few dollars - a lot.

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