1970-74 Chevy Corvette Exhaust Manifold Pair Dorman 674-506, 674-505 - 1AEEK00045

Our aftermarket manifolds are some of the highest quality replacements on the market!

This cast iron manifold pair has been designed to eliminate the faults of the original GM design.


  • Comes as a Pair
  • 3 bolt flanges
  • Direct replacement for 2 1/2 inch exhaust systems
  • Corrosion resistant
  • Replaces original manifolds that are cracked from thermal expansion and contraction
  • Strengthened and redesigned in the vulnerable areas of failure

Note: These exhaust manifolds are excellent replacements and will fit and function like the originals. They are not exactly the same casting as the original Corvette manifolds.

Now you can buy a high quality exhaust manifold that is built to strict quality control standards for less then the price at the dealer. REPLACE your broken, warped, or cracked one now with this great fitting, alternative.

Part Details

  • Quantity: Pair

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Vehicle Fit

  • 1970-1974 Chevy Corvette Exhaust Manifold Pair V8 7.4L 454ci & for Models with Drivers Side Casting # 3969923 Dorman 674-506, 674-505

This part replaces:

  • Dorman 674-506
  • Dorman 674-505
  • OE # 3969923
  • Hollander 327-751L
  • Hollander 327-519
  • Dorman 674-506, 674-505
Part #: 1AEEK00045

Out of Stock

Brand #: 674-506, 674-505