1. Engine Rocker & Valve Covers Items
  2. sku: 12803794882431773
  3. CLASSIC INDUSTRIES 1256609

CLASSIC INDUSTRIES 1256609 Big Block Valve Cover Bolt Set Tr Head

fits make: Chevrolet. year: 1966-74–2014.

1256609 Classic Industries 1966-74 Chevrolet Big Block 14 Piece Valve Cover Bolt Set With Inch Tr On Head

( Brand: Classic Industries ), ( Manufacturer Part Number: 1256609 ), ( Part Type: Valve Cover Block Bolt Head )

Review CLASSIC INDUSTRIES Chevrolet Big Block Piece Valve Cover Bolt Set Inch On Head fits 1966-74–2014

Introducing the classic 1256609 1966-74 Chevrolet Big Block 14 Valve Cover Bolt Set with TR heads. This is an essential replacement part for any restoration or maintenance project on your vintage Chevrolet big block engine.

The 1256609 set includes 14 bolts, each with a TR (Torx) head design. Torx heads feature a star-shaped socket that provides a higher level of torque transfer than traditional hex heads, ensuring a secure and reliable fit. This design also prevents the bolts from being accidentally loosened due to vibration, which is especially important in high-performance applications.

Each bolt is made from high-quality steel, ensuring both strength and durability. The surface finish is zinc-coated, which protects against corrosion and enhances the aesthetic appeal of your engine.

The bolts are specifically designed for use with Chevrolet big block engines from the 1966 to 1974 period. The TR head design is a standard feature on these engines, making this set an ideal fit.

Installing these bolts is a straightforward process. Simply replace the old, worn, or corroded bolts with the new ones, ensuring a proper torque value is applied using a Torx socket. Properly torqued bolts ensure optimal engine performance and longevity.

This 1256609 14-piece bolt set is an essential addition to any Chevrolet big block engine restoration or maintenance project. By using these high-quality, TR head bolts, you'll be ensuring a secure and reliable engine, providing peace of mind and enhancing the overall performance of your vintage vehicle.

Buying a Chevrolet 1256609 1966-1974 Big Block 14 Valve Cover Bolt Set with T-Heads can be a worthwhile investment for those restoring or working on these classic Chevrolet engines. Here are some pros and cons to consider:

Pros:

1. Authenticity: Replacing the original bolts with new ones helps maintain the authenticity of the engine, which is crucial for collectors and enthusiasts.

2. Improved Performance: Using new bolts can help improve engine performance by ensuring a proper seal and reducing the risk of leaks.

3. Easy Installation: These bolts are designed to be easy to install, making the job quicker and more straightforward.

4. Durability: New bolts are more durable than old ones and can withstand the rigors of regular use better, reducing the risk of failure.

5. Cost-Effective: While the upfront cost of new bolts may be higher than reusing old ones, the potential savings from avoiding expensive repairs or engine replacements can make it a cost-effective investment in the long run.

Cons:

1. Cost: The cost of new bolts can be higher than the cost of reusing old ones, which may be a deterrent for some.

2. Availability: These bolts may not be readily available at local auto parts stores, which could require ordering them online or from a specialty supplier.

3. Time: While the installation process is relatively straightforward, it can still take some time to remove the old bolts and install the new ones.

In conclusion, while there are some cons to consider, the benefits of using new bolts for a Chevrolet 1966-1974 Big Block engine outweigh the drawbacks. The improved performance, durability, and authenticity make it a worthwhile investment for those restoring or maintaining these classic engines. If you're in the market for new bolts, be prepared for the cost and potential time investment, but know that the end result will be a stronger, more reliable engine.

Details:

1966-74 Chevrolet Big Block 14 Piece Valve Cover Bolt Set with On Head: Classic Industries now offers OE valve cover bolts that include the correct head markings.

part #: 1256609 price

  • $20.99

specifications rockercove:

  • for makes: Chevrolet
  • for years: 1966-74-2014
  • brand: Classic Industries
  • mpn: 1256609
  • part type: Valve Cover Block Bolt Head

seller rockercove:

  • city: Huntington Beach, California
  • rating: 99.7%
  • # reviews: 57488

offer rockercove:

  • quantity: 2
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • started: April 22, 2026

payments rockercove:

  • credit card: Discover
  • wallet: Apple-pay
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general rockercove:

  • condition: New
  • Engines Engine Parts > Valvetrain Components > Rocker Valve Covers

returns rockercove:

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

shipping rockercove:

  • cost: $6.07
  • class: Standard, Expedited
  • carrier: USPS, UPS, FedEx
  • service: USPS Ground Advantage, UPS Ground, UPS 2nd Day Air, FedEx Ground / FedEx Home Delivery
  • transit: 3-9 Days
  • type: Calculated
for makes: chevrolet, for years: 1966-74-2014, part type: valve cover block bolt head,
category: auto parts > engines engine parts > valvetrain components > rocker valve covers, sku: 12803794882431773,

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1 offer $20.99 USD
  • Offer #1: $20.99 price + $6.57 shipping estimate = $27.56* total. specs . Classic Industries now offers OE style valve cover bolts that include the correct head markings.+$6.57 shipping

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