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PERFORMER HEADS

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Features

  • Cast out of 356 aluminum and heat-treated to T-6 specifications
  • Feature 35% gain at peak torque, 92% gain at peak horsepower over stock with the use of aftermarket cam (Edelbrock 1740 grind, DS-199197), carburetor and pipes
  • Broad power curve for excellent driveability and crisp throttle response throughout the rpm range
  • Rectangular-shaped intake port increases surface area of the floor for noticeable airflow increase
  • The .125” raised rectangular intake port also helps to increase velocity of incoming air for more power
  • The 72cc combustion chamber increases compression ratio from 8.5:1 to 9.5:1
  • Heads will accept up to a .570 lift cam and bore size up to 31 3/16” (some machining required)
  • Street-legal in all 50 states; patent pending
  • Heads require the use of Edlebrock three-piece manifolds (sold separately)
  • Replacement components available separately; made in the U.S.A.

Images

PERFORMER HEADS

DS-750550

  • DS-750550
  • DS-750547


For 84-99 80” Evolution Big Twin (pr.)

Part Number Description Suggested Retail
DS-750550  Standard finish   $995.95 
DS-750547  Black finish   $1,074.95 

Replacement Compenents For Performer Heads

Part Number Description Suggested Retail
DS-198982  Exhaust valve (ea.)   $18.95 
DS-198983  Intake valve (ea.)   $19.95 
DS-199015  Exhaust valve guide (ea.)   $17.95 
DS-199016  Intake valve guide (ea.)   $17.95 
DS-199110  Valve stem seals (4-pk.)   $11.95 

Descriptions and notes

Not for fuel-injected models. “Complete” heads come assembled with stainless steel valves (1.850” intake and 1.610” exhaust), ductile iron seats and guides, 1.460” o.d. valve springs, Teflon® valve stem seals, retainers and locks, 14mm spark plug hole and 1/2’’ cylinder bolt size. Guides and seals will also fit Performer RPM assembled heads.

This item appears on page 369 of the Fatbook