What is the main benefit of using titanium valves in a performance engine?

The primary advantage of titanium valves is their significantly lower weight compared to steel. This reduction in mass allows the valve train to operate more freely at higher engine speeds, improving responsiveness and enabling higher RPM limits.

What type of keeper groove do these valves use, and what locks are recommended?

These Manley titanium valves feature a standard single radius keeper groove. For installation, Manley recommends using their valve locks, specifically part number 13098-16 for a 7-degree lock or 13153-16 for a 10-degree lock, depending on your spring and retainer choice.

How does the one-piece forged construction benefit the valve's durability?

The one-piece forged construction ensures a consistent grain flow throughout the valve. This method is inherently stronger and less prone to failure compared to valves made from multiple pieces that are welded together, making them more reliable in demanding applications.

Specifications

Brand: Manley Performance
Part #: 11978TBC-8
UPC: 807298089805

Manley SB Chevrolet LS7 Titanium Intake Valves 2.250 Head Dia 0.3135 Stem Dia - Set of 8

Name: Manley SB Chevrolet LS7 Titanium Intake Valves 2.250 Head Dia 0.3135 Stem Dia - Set of 8
Brand: Manley Performance
SKU: manley-performance-manley-sb-chevrolet-ls7-titanium-intake-valves-2-250-head-dia-t14-316568
Price: 1750.68 USD
Availability: BackOrder

$1750.68

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Manley SB Chevrolet LS7 Titanium Intake Valves 2.250" Head 0.3135" Stem - Set of 8. Lightweight titanium construction for high-RPM use.

Key Features

Set of 8 Manley titanium intake valves for Chevrolet LS7 engines.
Features a 2.250 inch head diameter and a 0.3135 inch stem diameter.
Titanium construction significantly reduces valve train weight for improved engine efficiency and higher-rpm capability.
One-piece forged construction with integrated grain flow ensures durability and minimizes potential weak points.
Precisely machined on state-of-the-art CNC equipment to maintain exacting tolerances.
Made from durable titanium alloys that balance mechanical properties, hardness, ductility, and fatigue strength.

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About this part

Product Details

If you're building a high-performance Chevrolet LS7 engine and pushing it to its limits, especially in high-rpm applications, these Manley titanium intake valves are a serious consideration. They're designed to significantly reduce the weight in your valve train, which is crucial for allowing your engine to rev higher and more freely. This weight reduction also helps improve overall engine efficiency and responsiveness when you're on the throttle.

Manley makes these valves from a single piece of forged titanium, which means they have a strong, consistent grain structure throughout. This one-piece forging is more durable and less prone to failure than valves that are welded together. They're then precisely machined on advanced CNC equipment to exacting tolerances, ensuring they seal perfectly and perform reliably. Manley chooses specific titanium alloys that offer a great balance of hardness, strength, and ductility, even at the high temperatures found in a performance engine. Each valve goes through a thorough final inspection to make sure it meets Manley's high standards for quality and performance.

These valves come with an inserted hard tip and a standard single radius keeper groove. You'll need to use Manley valve locks, part numbers 13098-16 for a 7-degree lock or 13153-16 for a 10-degree lock, depending on your spring and retainer setup.