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Moroso 38772 Ultimate-Duty Harmonic Balancer Bolt Kit Small Block Chevy 7/16-20

(1970-1980 Chevrolet 400 Small Block)

Manufacturer

Picture for manufacturer Moroso

Part Number

38772
8 reviews
Sale Price

$34.64

In Stock (5)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Moroso 38772 Ultimate-Duty Balancer Bolt Kit is engineered for Small Block Chevrolet engines requiring maximum clamping force and durability under severe operating conditions. This premium chrome moly steel bolt delivers 200,000 psi tensile strength to securely fasten your harmonic balancer in high-performance and racing applications.

Key Features:

  • Chrome moly steel construction with black oxide finish for superior strength and corrosion resistance
  • Extra-tall 12-point head design accepts deep 5/8" socket for positive engagement during installation and removal
  • Machined and thread rolled after heat treating for exceptional strength, accuracy, and longevity
  • Large built-in washer flange—2.0" diameter x 0.275" thick—spreads clamping load over larger surface area
  • 7/16"-20 thread size with 2.450" underhead length
  • Washer machined perfectly flat to ensure even load distribution

This Ultimate-Duty bolt kit provides the reliability needed for racing and high-stress applications where standard balancer bolts may fail. The 12-point head design and quality construction make crankshaft rotation by hand easier and safer during engine assembly and timing procedures.

Products specifications

Fits

1970-1980 Chevrolet 400 Small Block

Size

7/16" -20 threads

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