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Small Block Chevy Stage 8 (8911B) 1-1/4" Header Bolt Kit Review

3

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Average

Revainrating 3.5 out of 5  
Rating 
3.5
🔊 Exhaust Systems & Parts, 🏎️ Performance Car Parts & Accessories

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img 1 attached to Small Block Chevy Stage 8 (8911B) 1-1/4" Header Bolt Kit

Details

MaterialAlloy Steel
ExteriorNickel
Manufacturer GradeGrade 8
Head StyleHex
BrandStage 8

Description of Small Block Chevy Stage 8 (8911B) 1-1/4" Header Bolt Kit

Grade 8 bolts will not stretch when hot. Duplex nickel finish for a superior look and corrosion resistance. Double Hex Head includes 3/16 inch recessed Allen Head for easy installation. Removable and reusable. Can visually inspect - no need to put a wrench on to check tightness.

Reviews

Global ratings 3
  • 5
    2
  • 4
    0
  • 3
    0
  • 2
    1
  • 1
    0

Type of review

Revainrating 2 out of 5

Disappointing Performance of Small Block Headers

As an automotive enthusiast, I was excited to test out these headers, but they did not perform as expected. As a result of my tests, I determined that these headers did not improve the exhaust flow or horsepower of my vehicle. The installation process was also challenging and time-consuming.

Pros
  • None
Cons
  • Poor performance and difficult installation.

Revainrating 5 out of 5

I bought a set of Dougs manifolds and used a Remflex gasket

When using non-original manifolds, the screws must be 1 1/4 be to fit properly. With the Stage 8 header mounting bolts, you don't have to worry about them being reversed. Run the engine for 15 minutes, then retighten and secure the bolts.

Pros
  • The double hex head includes a countersunk 3/16" hex head for easy installation
Cons
  • Crumpled packaging

Revainrating 5 out of 5

Stage 8 Manifold Bolt Set [8911B] 1-1/4 for Chevy Small Block

Prompt delivery, packaging on time. Great product, works well to not unlock when hot or cold. The only problem they have is a hex head with a hex wrench hole in the middle of the bolt because you can't tighten the bolt! ! !

Pros
  • Class 8 bolts do not stretch when hot
Cons
  • Nothing