1. Car/Truck Engine Valves Deals
  2. sku: 11469051822506751
  3. BFO NXVZ1U

BFO NXVZ1U Valve Springs Kit Steel Retainers Locks Block 327/400/Z28

fits model: 327, 400. make: Chevy.

Nxvz1u Bfo Valve Springs Kit With Steel Retainers Locks For Chevy Small Block 327/400/z28

( Brand: Bfo ), ( Manufacturer Part Number: NXVZ1U ), ( 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 327/400/z28 fits 327 400

Introducing the BFO NXVZ1U Valve Springs Kit, an essential upgrade for your Chevy 327/400/Z28 engine. This complete kit includes not just high-performance valve springs but also steel retainers and locks, ensuring a reliable and efficient operation of your engine's valvetrain.

The valve springs in this kit are meticulously crafted from premium steel, designed to provide superior strength and durability. They are engineered to handle increased engine performance, making them an excellent choice for high-performance applications or those seeking improved power and torque. Each spring is precisely calibrated to ensure consistent valve action, promoting optimal engine efficiency.

The steel retainers in this kit are designed to work in perfect harmony with the valve springs. Their robust construction is built to endure the rigors of high-performance driving, providing reliable retention of the valve springs and preventing them from contacting the valve guides or other components.

The locks included in this kit further enhance the performance and reliability of the valve springs. These locks help secure the valve springs in place during engine operation, preventing them from moving excessively and ensuring consistent valve timing. They also help to minimize the risk of valve bounce, which can lead to engine misfires and reduced performance.

This BFO NXVZ1U Valve Springs Kit is an excellent investment for any Chevy 327/400/Z28 engine builder or performance enthusiast. Its high-quality components are designed to provide superior performance, reliability, and durability, making it a must-have for anyone looking to maximize the potential of their engine.

Installing this kit is a straightforward process that can be done with common hand tools. However, it's always recommended to consult your vehicle's service manual or a professional mechanic to ensure proper installation and to avoid any potential complications.

In summary, the BFO NXVZ1U Valve Springs Kit is an essential upgrade for any Chevy 327/400/Z28 engine seeking improved performance, reliability, and durability. With its high-quality valve springs, steel retainers, and locks, this kit is a smart investment for any engine builder or performance enthusiast.

Buying a BFO NXVZ1U valve springs kit with steel retainers and locks for a Chevy block 327/400/Z28 engine can have several advantages and disadvantages. Here are some potential pros and cons:

Pros:

1. Increased Performance: The BFO valve springs kit is designed to provide improved valve control, allowing for higher RPMs and increased power output.

2. Durability: The steel retainers and locks are more robust than the stock components, reducing the risk of valve train damage during high-performance driving.

3. Improved Valve Sealing: The BFO valve springs kit can help improve valve sealing, reducing the risk of carbon build-up and improving engine efficiency.

4. Customization: The BFO valve springs kit allows for customization of the engine's performance characteristics, making it a popular choice among enthusiasts.

Cons:

1. Cost: The BFO valve springs kit is more expensive than the stock components, which may be a deterrent for some buyers.

2. Installation Complexity: Installing the BFO valve springs kit can be a complex process, requiring specialized tools and expertise.

3. Potential for Engine Damage: Installing incorrect spring pressures or improperly installing the valve springs kit can result in engine damage.

4. Noise: The BFO valve springs kit may produce more noise than the stock components, especially during high-performance driving.

Conclusion:

The BFO NXVZ1U valve springs kit with steel retainers and locks is a popular choice among Chevy 327/400/Z28 engine enthusiasts seeking to increase performance and durability. However, it comes with a higher cost, installation complexity, and potential for engine damage if not installed correctly. Ultimately, the decision to purchase this kit depends on the individual's performance goals, budget, and level of expertise.

Recommendation:

If you are considering purchasing the BFO NXVZ1U valve springs kit for your Chevy 327/400/Z28 engine, we recommend carefully considering the potential pros and cons and consulting with a professional mechanic or engine builder to ensure proper installation and optimal performance. Additionally, make sure to budget for the higher cost and be prepared for the installation complexity.

Details:

Note, >> Please verify the parts compatibility with your vehicles make, model, and year before purchase to avoid any fitment issues. At 1.700 in, Open Load: 285-lbs. For complete set of valve springs for Chevy Small Block GEN I and II not vortex engines. Valve Spring Specifications, Type: Single W/ Damper Valve, Material: Chrome Silicon, Outside Diameter: 1.259 in.

>> Enhanced Engine Life, Help extend the life of engine. Inside Diameter: .876 in. Feature, >> Optimized Valve Control, Ensure precise control over the valves movement, maintaining correct opening and closing sequence which is essential for efficient engine performance. They prevent valve float at high PMS and ensure reliable operation.

Fast Shipping. Seat Load: 110-lbs. They contribute to improved engine power and torque, making them a critical component for performance-oriented applications. The valve spring reduce wear and tear on the train components, which can lead to reduced maintenance costs a longer engine lifespan.

>> Reliability and Performance, designed to withstand the stresses of high-performance engines, ensuring consistent reliable operation even under demanding conditions. Guaranteed Fitment, Always the correct part.

specifications voomvalve:

  • for models: 327, 400
  • for makes: Chevy
  • brand: Bfo
  • mpn: Nxvz1u
  • 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

general voomvalve:

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

seller voomvalve:

  • city: Rowland height, California
  • rating: 99.3%
  • # reviews: 13889

payments voomvalve:

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

offer voomvalve:

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

returns voomvalve:

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

shipping voomvalve:

  • carrier: FedEx
  • transit: 4-7 Days
  • type: Fixed
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $0.00
  • class: Standard
for models: 327, 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: 11469051822506751,

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