MANLEY 42347-16 Engine Valve Spring Seat 807298066288 With/replacement

( Brand: Manley ), ( Manufacturer Part Number: 42347-16 ), ( Part Type: Valve Spring Engine Seat ), ( UPC: 807298066288 )

Review MANLEY Engine Valve Spring Compatible With/replacement For Seat

The Manley 42347-16 engine valve spring is a high-performance aftermarket replacement component designed for use in various applications where original equipment springs may not meet the demands of increased power output or durability requirements. This valve spring is specifically designed to fit and replace the factory seat, ensuring a reliable and precise valve train operation.

Crafted from the highest quality materials, this Manley valve spring features a chrome silicon alloy wire that is heat-treated and shot-peened to provide excellent fatigue strength, resistance to compressive forces, and durability under extreme temperatures and pressures. The high-tensile wire is wound into a compact, conical shape, with a fully adjustable preload that can be set according to the engine's specifications to optimize valve train performance and reduce the likelihood of valve bounce and other related issues.

The Manley 42347-16 valve spring also boasts a robust, dual-spring design that includes a heavy-duty, bottom-end compressive spring and a lighter, top-end expansion spring. This design not only enhances the spring's overall load capacity and responsiveness but also ensures consistent valve closure and improved engine efficiency.

Each Manley valve spring comes with a comprehensive installation kit, which includes the necessary retainers, keepers, and other hardware components required for a successful installation. The springs are also available in various lengths and rates to accommodate a wide range of engine applications, ensuring a perfect fit and optimal performance.

In summary, the Manley 42347-16 engine valve spring is an essential upgrade for any engine that demands increased power output, reliability, and durability. Its high-quality materials, robust design, and adjustable preload make it a top choice for engine builders, racers, and enthusiasts alike, providing exceptional performance and peace of mind under even the most demanding conditions.

Manley 42347-16 Engine Valve Springs are aftermarket replacement valve springs designed for various applications, including high-performance engines. Here are some pros and cons that might help you decide whether to purchase these springs:

1. High-performance design: Manley valve springs are designed to provide improved valve control and reliability, making them a popular choice for high-performance applications.

2. Durability: Manley valve springs are manufactured from high-quality materials and are built to withstand the rigors of high-performance use.

3. Improved power output: By providing better valve control, these springs can help increase engine power and performance.

4. Availability: Manley offers a wide range of valve springs to fit various engine applications.

1. Cost: Manley valve springs are typically more expensive than OEM (original equipment manufacturer) springs.

2. Installation complexity: Installing aftermarket valve springs can be more complex than installing OEM springs due to the need for precise adjustment and setup.

3. Potential for noise: Depending on the application, aftermarket valve springs may produce more noise than OEM springs, especially during engine operation at high RPMs.

4. Requires precise setup: Properly installing aftermarket valve springs requires precise setup and adjustment to ensure optimal performance.

Manley 42347-16 Engine Valve Springs offer improved performance and durability compared to OEM springs. However, they come with a higher cost and require more complex installation. If you're building or modifying an engine for high performance, these springs could be a worthwhile investment. But if you're looking for a straightforward replacement, OEM springs may be a more cost-effective option.

If you're building or modifying an engine for high performance and are looking for reliable and durable valve springs, Manley 42347-16 Engine Valve Springs could be a good option. However, be prepared for the additional cost and complexity of installation. If you're just looking for a straightforward replacement, OEM springs may be a more cost-effective choice.

Details:

Their product line-up includes valve train components, pistons, rings, connecting rods, and crank shafts for everything from late model V8s to sport compacts. Engine Type: ICE. Product Market: Domestic. Manley 42347-16 - Engine Valve Spring Seat.

Title - Web: Manley Valve Spring Seat, SPRING CUP-ID 1.500. Title: Manley Valve Spring Seat, SPRING CUP-ID 1.500.: Engine Valve Spring Seat Set..

part #: 4234716 prices

• $95.27-$109.08

specifications voomvalve:

• brand: Manley
• mpn: 42347-16
• part type: Valve Spring Engine Seat
• upc: 807298066288

general voomvalve:

• condition: New
• Engines Engine Parts > Valvetrain Components > Valves

seller voomvalve:

• city: Saint Paul, Minnesota
• # reviews: 45358
• rating: 97.6%

shipping voomvalve:

• service: Standard
• transit: 5-10 Days
• class: Standard
• cost: $0.00
• type: Fixed

payments voomvalve:

• wallet: Google-pay
• credit card: Mastercard
• other

returns voomvalve:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

offer voomvalve:

• quantity: 4
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: November 29, 2025

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