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  H-P Books
  http://us.penguingroup.com/static/pages/…
  Performance and how-to books
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  H-P Tuners
  http://www.hptuners.com/
  Performance computer flash tuning software
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  H3R Performance
  http://www.h3rperformance.com
  Fire extinguishers and related components
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  Hagan Street Rod Necessities
  http://www.haganauto.com/
  Street rod accessories
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  Hamburger’s Performance
  http://www.hamburgersperformance.com
  Performance oil pans, valve covers and TBI spacers
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  HANS Performance Products
  http://hansdevice.com/Home.html
  Head and neck restraint systems
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  Hard Blok
  http://www.hardblok.com
  Engine block filler
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  Harwood
  http://www.eharwood.com
  Fiberglass hoods, hood scoops, body parts and fuel cells
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  Hastings Manufacturing
  http://www.hastingsmfg.com
  Performance piston rings and related components
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  Hawk Performance
  http://www.hawkperformance.com
  Race and street brake pads
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  Hays
  https://www.holley.com/brands/hays/
  Clutches, pressure plates and flywheels
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  Hedman Hedders
  http://www.hedman.com
  Headers and accessories
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  Heidt’s Rod Shop
  http://www.heidts.com
  Street rod suspension components
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  Helix
  http://www.thehoffmangroup.com/helix/
  Special Order Only – Street rod chassis parts
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  Hellwig
  http://www.hellwigproducts.com
  Anti-sway bars and helper springs
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  Hepfner Racing Products
  http://www.hrpracing.com
  Sprint car wings and accessories
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  Hi-Lift Jack
  http://www.hi-lift.com
  Jacks and off road accessories
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  High Velocity Heads
  http://www.highvelocityheads.com/
  Intake Spacers
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  Hilborn Fuel Injection
  http://www.hilborninjection.com
  Fuel injection units
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  Hitachi Automotive Products
  http://www.hitachi-automotive.us/index.h…
  Performance starters
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  HJC Motorsports
  http://www.hjc-motorsports.com
  Motorsports helmets and accessories
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  Holley Performance Products
  http://www.holley.com
  Carburetors, manifolds and accessories
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  Hooker Harness
  http://www.hookerharness.com/
  Seatbelts and safety harnesses
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  Hooker Headers
  https://www.holley.com/brands/hooker/
  Headers and accessories
• 
  Hoosier Tires
  http://www.hoosiertire.com
  D.O.T. tires and slicks
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  Hot Products Engineering
  http://www.hotproductsengineering.com
  Engine pre-heater and related components
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  Hotchkis Sport Suspension
  http://www.hotchkis.net
  Suspension components/swaybars
• 
  Howards Racing Components
  http://www.howardscams.com/
  Cranks, rods, camshafts, and valve train components
• 
  Howe Racing Enterprises
  http://www.howeracing.com
  Radiators, circle track components
• 
  Hughes Performance
  http://www.hughesperformance.com
  Performance transmissions and torque converters
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  Hurst
  http://www.hurst-shifters.com
  Shifters and accessories
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  HushMat
  http://www.hushmat.com
  Sound deadening materials
• 
  Husky Liners
  http://www.huskyliners.com
  Trucks/Suv floor & cargo area liners
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  Hyperco
  http://www.hypercoils.com
  Conventional and coil-over springs
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  Hypertech
  http://www.hypertech-inc.com
  Computer chips and programmers