1. Car/Truck Engine Valves Deals
  2. sku: 11466457827739781
  3. BFO 3W5GTP

BFO 3W5GTP Valve Springs Kit Steel Retainers Locks Block 350/400/Z28

fits model: 350, 400. make: Chevy.

3w5gtp Bfo Valve Springs Kit With Steel Retainers Locks For Chevy Small Block 350/400/z28

( Brand: Bfo ), ( Manufacturer Part Number: 3W5GTP ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Fitment Type: Direct Replacement ), ( Items Included: Valve Spring, Valve Spring Retainer, Valve Lock ), ( Lock Specifications: Lock Groove Type, Square ), ( Lock Material: Hardened Steel ), ( Stem Diameter: 11/32 In ), ( Lock Style: 7 Degree ), ( Manufacturer Warranty: 1 Year ), ( Material: Chrome Silicon ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Oe/oem Part Number: Valve Spring, Valve Spring Retainer, Valve Locks ), ( Package Included: 16 Valve Spring, 16 Valve Spring Retainer, 32 Valve Lock ), ( Retainer Specifications: Material ), ( Outside Diameter: 1.259 In. ), ( Step 1 Diameter: .860 In ), ( Step 2 Diameter: .645 In ), ( Type: Valve Spring Set ), ( Valve Spring Specifications: Type ), ( Inside Diameter: .876 In. ), ( Seat Load: 110-lbs. At 1.700 In ), ( Open Load: 285-lbs. At 1.210 In ), ( Coil Bind: 1.160 In ), ( Free Length: 2.040 In ), ( Max Lift: .550 )

Review BFO Valve Springs Kit Steel Retainers Locks For Chevy Small Block 350/400/z28 fits 350 400

Introducing the BFO 3W5GTP Valve Spring Kit, an essential upgrade for your Chevy small block 350/400/Z28 engine. This high-performance kit is designed for those seeking improved power and reliability from their engine.

The heart of this kit consists of the top-quality steel retainers. These retainers are meticulously engineered to provide a secure fit and retain the valve springs under extreme engine conditions. They are manufactured using superior steel alloys, ensuring unmatched strength and durability.

The valve springs themselves are no less impressive. These springs are designed to handle increased engine RPMs and combustion pressures, enabling your engine to breathe better and deliver more power. Each spring is carefully crafted from chrome silicon steel wire, ensuring a consistent coil diameter and height for optimal performance.

The dual-spring design of these valve springs provides superior compatibility with aftermarket camshafts, allowing you to unlock the full potential of your engine build. This design also ensures excellent valve control, reducing the likelihood of valve float and ensuring consistent cylinder filling.

The locks included in this kit are another critical component. These locks provide a positive seal between the valve spring and the valve stem, ensuring that the valve remains seated properly during high-RPM operation. This not only improves engine performance but also enhances its reliability by reducing the risk of valve float and other related issues.

In summary, the BFO 3W5GTP Valve Spring Kit is an essential upgrade for your Chevy small block 350/400/Z28 engine. Its high-performance steel retainers, powerful valve springs, and reliable locks combine to deliver improved power, increased reliability, and enhanced engine compatibility. Trust this kit to take your engine to the next level, whether you're gearing up for a high-performance build or simply seeking to enhance your daily driver.

Buying a BFO 3W5GTP valve springs kit with steel retainers and locks for a Chevy block 350/400/Z28 engine can have several advantages and disadvantages. Here are some potential pros and cons:

Pros:

1. Improved Performance: Upgrading to a high-performance valve spring kit can increase engine power and improve overall performance. These springs are designed to handle higher RPMs and increased pressure from performance modifications.

2. Durability: The steel retainers and locks provide added durability and prevent valve train components from coming loose during high-performance driving or racing. The steel retainers are also more resistant to fatigue than the original spring retainers.

3. Customizability: These valve springs come in various compression heights, allowing you to customize your engine's compression ratio for optimal performance.

4. Better Valve Control: The high-performance valve springs provide better valve control, resulting in better fuel efficiency, increased power, and improved engine response.

Cons:

1. Cost: Upgrading to a high-performance valve spring kit can be expensive, especially when you consider the cost of the kit, installation, and any additional modifications required to take full advantage of the new springs.

2. Complex Installation: Installing a valve spring kit can be a complex process and may require specialized tools or the assistance of a professional mechanic.

3. Potential for Engine Damage: Improper installation or use of incorrect valve springs can result in engine damage, such as bent valves or piston damage. It is essential to follow the installation instructions carefully and use the correct springs for your specific engine.

4. Potential for Noise: Upgrading to high-performance valve springs can result in increased engine noise due to the increased pressure on the valves.

Conclusion:

Upgrading to a BFO 3W5GTP valve springs kit with steel retainers and locks for a Chevy block 350/400/Z28 engine can provide several benefits, including improved performance, durability, and customizability. However, the cost, complex installation, potential for engine damage, and increased noise may be drawbacks for some. It is essential to carefully consider these factors before making a purchase and to ensure proper installation to avoid any potential issues.

Recommendation:

If you are considering upgrading your valve springs for your Chevy block 350/400/Z28 engine, it is recommended to consult with a professional mechanic or performance specialist to determine if this upgrade is necessary for your specific application and to ensure proper installation. Additionally, be sure to purchase the correct springs for your engine and follow all installation instructions carefully to avoid any potential issues.

Details:

Fast Shipping. Feature, >> Optimized Valve Control, Ensure precise control over the valves movement, maintaining correct opening and closing sequence which is essential for efficient engine performance. The valve spring reduce wear and tear on the train components, which can lead to reduced maintenance costs a longer engine lifespan. Valve Spring Specifications, Type: Single W/ Damper Valve, Material: Chrome Silicon, Outside Diameter: 1.259 in.

Seat Load: 110-lbs. They contribute to improved engine power and torque, making them a critical component for performance-oriented applications. Note, >> Please verify the parts compatibility with your vehicles make, model, and year before purchase to avoid any fitment issues. They prevent valve float at high PMS and ensure reliable operation.

Inside Diameter: .876 in. >> Reliability and Performance, designed to withstand the stresses of high-performance engines, ensuring consistent reliable operation even under demanding conditions. >> Enhanced Engine Life, Help extend the life of engine.

For complete set of valve springs for Chevy Small Block GEN I and II not vortex engines. At 1.700 in, Open Load: 285-lbs.

specifications voomvalve:

  • for models: 350, 400
  • for makes: Chevy
  • brand: Bfo
  • mpn: 3w5gtp
  • california prop 65 warning: California Prop 65 Warning
  • fitment type: Direct Replacement
  • items included: Valve Spring, Valve Spring Retainer, Valve Lock
  • lock specifications: Lock Groove Type, Square
  • lock material: Hardened Steel
  • stem diameter: 11/32 In
  • lock style: 7 Degree
  • manufacturer warranty: 1 Year
  • material: Chrome Silicon
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part
  • oe/oem part number: Valve Spring, Valve Spring Retainer, Valve Locks
  • package included: 16 Valve Spring, 16 Valve Spring Retainer, 32 Valve Lock
  • retainer specifications: Material
  • outside diameter: 1.259 In.
  • step 1 diameter: .860 In
  • step 2 diameter: .645 In
  • type: Valve Spring Set
  • valve spring specifications: Type
  • inside diameter: .876 In.
  • seat load: 110-lbs. At 1.700 In
  • open load: 285-lbs. At 1.210 In
  • coil bind: 1.160 In
  • free length: 2.040 In
  • max lift: .550

seller voomvalve:

  • rating: 99.6%
  • # reviews: 4350
  • city: Rowland height, California

general voomvalve:

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

returns voomvalve:

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

payments voomvalve:

  • credit card: Diners-club
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offer voomvalve:

  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • started: January 10, 2026
  • quantity: 2
  • best offers: True

shipping voomvalve:

  • service: FedEx Ground / FedEx Home Delivery
  • type: Fixed
  • cost: $0.00
  • carrier: FedEx
  • transit: 4-7 Days
  • class: Standard
for models: 350, 400, for makes: chevy, california prop 65 warning: california prop 65 warning, fitment type: direct replacement, items included: valve spring, valve spring retainer, valve lock, lock specifications: lock groove type, square, lock material: hardened steel, stem diameter: 11/32 in, lock style: 7 degree, manufacturer warranty: 1 year, note: no instruction included, notice: this is aftermarket replcement part, oe/oem part number: valve spring, valve spring retainer, valve locks, package included: 16 valve spring, 16 valve spring retainer, 32 valve lock, retainer specifications: material, outside diameter: 1.259 in., step 1 diameter: .860 in, step 2 diameter: .645 in, type: valve spring set, valve spring specifications: type, inside diameter: .876 in., seat load: 110-lbs. at 1.700 in, open load: 285-lbs. at 1.210 in, coil bind: 1.160 in, free length: 2.040 in, max lift: .550,
category: auto parts > engines engine parts > valvetrain components > valves, material: chrome silicon, sku: 11466457827739781,

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