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.

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. Please keep your invoice for proof of this warranty.

There are no reviews for this item. Write Review
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 1 answer
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

  • 1962-1963 Chevy Corvette 327ci Hi-Flow Exhaust Manifold Pair Dorman 674-503, 674-504
Only 1 left in stock
Part #: 1AEEK00035

Ships Same Day for orders placed by 4 P.M. ET

Brand #: 674-503, 674-504

We're here to help

1A Auto Parts

Customer Feedback

"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
- Dwuan M.
Read More