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Technical Information
For over thirty five years Indy Cylinder Head has been supplying the aftermarket with high quality engine parts and complete engines. We have always been dedicated to making all Indy racers winners. Our secret is simple. We transferred our years of racing experience into our parts. Through thorough engineering and extensive testing we have been able to assemble the correct combinations of blocks, cylinder heads, manifolds, pistons, camshafts and every other engine component used to produce the ultimate in power.

We really understand what is needed to get you there. After browsing through our website please feel free to contact us with any questions you may have.

Throughout the year we attend numerous shows across the US. Check out our events page to find us at a show near you.

Horsepower is all about port volume.

Our success in producing real horsepower has come through our practical understanding of the fact that horsepower generation is all about port volume. We discovered early on in the game that the port volume essential for power generation can not be acheived with the industry’s shortest valves, the Chrysler intake and exhaust valves. Realizing that we needed a longer valve, we designed the ports in our 440 cylinder heads around a 1/2 “ longer valve. This allowed us to raise the port roof significantly. The modification created the extra port volume required to acheive the desired end result... more horsepower, and lots of it!

 

Stock 906 cutaway
 
Indy 440-1 head cutaway
Indy 440-1 overlayed onto a stock 906
Here you can visualize the dramatic difference in port volume between the stock 906 head (blue) and the Indy 440-1 head (red) upon overlaying the head diagrams.