HRD Racing Heads
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   HRD Racing Heads
   7791 Aqua Circle, Unit 4
   Dalton Gardens, ID 83815

   Al Dicksen
   Phone (208) 762-9600
   Fax (208) 762-1597

   E-Mail:
   hrdheads@verizon.net
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UPGRADES

We GUARANTEE to make your heads flow more air and make more horsepower!

HRD offers an upgrading service for those "mass produced CNC'd heads" that have disappointed so many engine builders.

Sportsman Upgrades Starting at $1000
Example - 18 deg. BMF heads
Before After
Int. 356 cfm 376 cfm
Exh. 259 cfm 276 cfm

Pro Upgrades Starting at $1500
Example - A.J. Hemi
Before After
Int. 493 cfm 539 cfm
Exh. 384 cfm 401 cfm

 

 

 

 

 

 



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