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

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.

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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manifold should angle towards firewall for 1966 chevy II, 4 speed, 327 engine?
greg h on Sep 3, 2016
BEST ANSWER: Please call us on this. There may be other options avail for your model application. 888-844-3393

Vehicle Fit

Year Make Model Description
1962-1963Chevy Corvette Chevy Corvette 327ci Hi-Flow Exhaust Manifold Pair Dorman 674-503, 674-504

This part replaces:

  • Dorman 674-503, 674-504
Only 1 left in stock
Part #: 1AEEK00035

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

Brand #: 674-503, 674-504