1. Car/Truck Engine Valves Deals
  2. sku: 10443753850537781
  3. BFO O42GU7

BFO O42GU7 Valve Springs Kit Steel Retainers Locks Block 350/400/Z28

fits model: 350, 400. make: Chevy.

O42gu7 Bfo Valve Springs Kit With Steel Retainers Locks For Chevy Small Block 350/400/z28

( Brand: Bfo ), ( Manufacturer Part Number: O42GU7 ), ( 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 O42GU7 Valve Springs Kit, an essential upgrade for your Chevy small-block engines, specifically models with a displacement of 350 cubic inches or 400 cubic inches, including the iconic Z28. This high-performance valve springs kit is designed to deliver improved engine response, durability, and reliability, making it an ideal choice for enthusiasts seeking to enhance their Chevy's power and performance.

The BFO O42GU7 Valve Springs Kit includes a complete set of premium steel valve springs, each engineered to withstand the rigors of high-performance applications. These springs feature a robust design with increased spring pressure, ensuring that your engine valves seat properly and maintain optimal combustion chamber pressure.

Moreover, the kit comes equipped with steel retainers and locks to provide superior valve control and stability. The steel retainers offer enhanced durability compared to their conventional counterparts, reducing the risk of failure under extreme conditions. Additionally, the locks securely hold the valve stems in place, ensuring optimal valve guide sealing and preventing unwanted valve movement.

These high-performance valve springs are suitable for a wide range of applications, from street performance to full-blown racing. They are designed to work seamlessly with your existing valvetrain components, making the installation process hassle-free. However, it is always recommended to consult your vehicle's manuals or a professional mechanic for proper installation procedures.

In summary, the BFO O42GU7 Valve Springs Kit is an excellent investment for any Chevy small-block engine enthusiast seeking to maximize power, performance, and reliability. With its robust design, superior materials, and ease of installation, this kit is sure to meet and exceed your expectations. Upgrade your Chevy's engine today with the BFO O42GU7 Valve Springs Kit.

Buying a BFO O42GU7 valve springs kit with steel retainers and locks for a Chevy 350/400/Z28 block can be a worthwhile investment for performance enthusiasts seeking to improve their engine's power output and reliability. Here are some potential pros and cons to consider before making a purchase:

Pros:

1. Enhanced Performance: Upgrading to high-performance valve springs can help increase engine power by allowing for higher RPMs and improved valve control.

2. Improved Reliability: The kit includes steel retainers and locks, which can help prevent valve train issues such as valve float and improve overall engine durability.

3. Better Valve Control: The BFO O42GU7 springs are designed to provide better valve control, allowing for more precise combustion and improved engine efficiency.

Cons:

1. Cost: Upgrading to high-performance valve springs can be an expensive modification, and this kit may be more costly than some other options on the market.

2. Installation Complexity: Installing valve springs can be a complex process that requires specialized tools and knowledge. It may be necessary to hire a professional mechanic or engine builder to ensure proper installation.

3. Compatibility: It's important to ensure that the BFO O42GU7 valve springs kit is compatible with your specific engine configuration and other upgrades you may have.

Conclusion:

In conclusion, buying a BFO O42GU7 valve springs kit with steel retainers and locks for a Chevy 350/400/Z28 block can provide significant performance and reliability benefits. However, it's important to consider the cost, installation complexity, and compatibility before making a purchase. If you're serious about maximizing the performance of your engine and are willing to invest the time and resources, this kit could be a worthwhile investment.

Recommendation:

If you're considering purchasing a BFO O42GU7 valve springs kit for your Chevy engine, we recommend doing thorough research to ensure compatibility with your specific engine configuration. Additionally, consider consulting with a professional mechanic or engine builder to ensure proper installation and to help you weigh the potential benefits against the cost.

Details:

The valve spring reduce wear and tear on the train components, which can lead to reduced maintenance costs a longer engine lifespan. Fast Shipping. They prevent valve float at high PMS and ensure reliable operation. Seat Load: 110-lbs.

Note, >> Please verify the parts compatibility with your vehicles make, model, and year before purchase to avoid any fitment issues. Feature, >> Optimized Valve Control, Ensure precise control over the valves movement, maintaining correct opening and closing sequence which is essential for efficient engine performance. Inside Diameter: .876 in. Valve Spring Specifications, Type: Single W/ Damper Valve, Material: Chrome Silicon, Outside Diameter: 1.259 in.

At 1.700 in, Open Load: 285-lbs. >> Enhanced Engine Life, Help extend the life of engine. They contribute to improved engine power and torque, making them a critical component for performance-oriented applications.

For complete set of valve springs for Chevy Small Block GEN I and II not vortex engines. >> Reliability and Performance, designed to withstand the stresses of high-performance engines, ensuring consistent reliable operation even under demanding conditions.

specifications voomvalve:

  • for models: 350, 400
  • for makes: Chevy
  • brand: Bfo
  • mpn: O42gu7
  • 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

payments voomvalve:

  • credit card: Visa
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  • wallet: Paypal

offer voomvalve:

  • options: Ship-to-home
  • started: November 12, 2025
  • quantity: 4
  • availability: In Stock
  • sold: 0
  • best offers: True

general voomvalve:

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

seller voomvalve:

  • city: Rowland height, California
  • # reviews: 4149
  • rating: 98.9%

shipping voomvalve:

  • cost: $0.00
  • service: FedEx Ground / FedEx Home Delivery
  • type: Fixed
  • carrier: FedEx
  • transit: 2-6 Days
  • class: Standard

returns voomvalve:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted
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: 10443753850537781,

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