Double H Mfg
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Double H Manufacturing

Double H Manufacturing 25th anniversary

Double H Manufacturing

 
Specialty and Custom
 
Clamshell design in Michigan
 REPLACEMENT DUMP GATE - CLAMSHELL DESIGN
  • Made with high-strength/low-alloy steel for wear resistance
  • Maintenance-free bronze bushings
  • Stainless steel shaft & precision machined gears
  • Hard powder coat finish is available
  
 
MARINE HEADS
Double H heads are made from the finest certified aircraft grade aluminum. Our one-piece design is completely CNC machined to exact tolerances, incorporating large heat sinks for maximum cooling ability. They are anodized with a gold finish for corrosion resistance and a unique custom appearance.
  • Completely capatible with ALL Mercury head components
  • Experience an increase in both low end torque and top end power
  • Improved performance and fuel economy at every RPM range
  • CNC machined to exact tolerances

Also available:
Grade 8 head stud kits, modified reed cages and other performance products.

Over 16 years experience

   

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