What is the main benefit of using titanium valves?

Titanium valves are significantly lighter than traditional steel valves. This reduced weight allows the valve train to operate more efficiently at higher engine speeds, improving overall performance and reducing stress on components.

What is the construction of these Manley valves?

These valves feature a one-piece forged construction, which optimizes grain flow for enhanced durability. They are meticulously machined to exacting tolerances using advanced CNC equipment.

Do these valves come with tip protection?

Part numbers without a 'T' suffix, like this one (11485-8), do not include a hard tip. You will need to use a wear cap, such as Manley's P/N 42104 or 42104TM, for tip protection.

Manley Titanium Exhaust Valves Big Block GM - 11485-8

Name: Manley Titanium Exhaust Valve Kit - Big Block General Motors
Brand: Manley Performance
SKU: manley-performance-manley-titanium-exhaust-valve-kit-big-block-general-motors-t14-880865
Price: 1617.09 USD
Availability: BackOrder

Manley Titanium Exhaust Valve Kit - Big Block General Motors

$1617.09

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Titanium Exhaust Valve Kit for Big Block General Motors. Reduces valve train weight for high-RPM use.

Key Features

Fits Big Block General Motors engines.
Set of 8 titanium exhaust valves.
Titanium construction significantly reduces valve train weight.
Designed for high-RPM applications and aggressive camshaft profiles.
One-piece forged construction with optimized grain flow ensures durability.
Machined to tight tolerances on CNC equipment for optimal performance.

This valve kit is designed for Big Block General Motors engines. Please verify compatibility with your specific engine configuration.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Secure CheckoutFast Shipping631-982-0042

Product Details

If you're building a high-performance Big Block General Motors engine that's going to see serious RPMs, you'll want to consider these titanium exhaust valves from Manley Performance. These aren't your average valves; they're crafted from premium titanium alloys specifically chosen for their balance of strength, hardness, and ductility at high temperatures. This material choice significantly cuts down on valve train weight, which is crucial for allowing your engine to rev higher and more freely without excessive stress on the components.

Manley builds these valves using a one-piece forged construction, which means the grain flow is optimized for maximum durability, avoiding potential weak spots you might find in other designs. They're then meticulously machined on advanced CNC equipment to ensure they meet very tight tolerances, which is essential for proper sealing and efficient engine operation. This attention to detail means you're getting a well-made part that's ready for aggressive camshaft profiles and extended periods of high engine speeds.

This kit includes a set of 8 exhaust valves, each measuring 1.840 inches in head diameter, 0.3415 inches in stem diameter, and 5.440 inches in overall length. You can choose between conventional square or Manley's Bead Loc single radius keeper grooves. Keep in mind that if your part number doesn't have a 'T' suffix, it doesn't include a hard tip, and you'll need to use a wear cap like Manley's P/N 42104 or 42104TM for tip protection.