1962-63 Chevy Corvette Hi-Flow Exhaust Manifold Pair Dorman 674-503, 674-504 - 1AEEK00035

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Part Details

  • Quantity:   Pair

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

This cast iron exhaust manifold pair has been designed to upgrade the original GM 2" design to the higher performance 2 1/2" design.


  • Comes as a Pair
  • 3 bolt flanges
  • Center dump Ram's head design with bracket on end for accessories
  • Corrosion resistant
  • Replaces original manifolds that are cracked from thermal expansion and contraction
  • Strengthened and redesigned in the vulnerable areas of failure
  • Built to strict quality control standards
  • Hi-Flow design for 2 1/2" I.D. exhaust systems

Now you can buy a high quality exhaust manifold pair 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.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Nickel (Metallic), which is known to the State of California to cause cancer. For more information, go to

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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Ask a question to 1A Auto customers who purchased the product
manifold should angle towards firewall for 1966 chevy II, 4 speed, 327 engine?
Greg H September 3, 2016
Year Make Model Description
1962-1963Chevy Corvette Chevy Corvette 327ci Hi-Flow Exhaust Manifold Pair Dorman 674-503, 674-504
Only 2 left in stock
Part #: 1AEEK00035

Order must be placed by 4pm ET
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Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

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Brand #: 674-503, 674-504