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Performer LT1 Cylinder Head (54cc)

Edelbrock part #61905 Performer small-block Chevy LT1 (1992-97) Performer cylinder heads deliver 24 horsepower over stock and raise the peak power level by 500 rpm.
Edelbrock part # 61905 Performer small-block Chevy LT1 (1992-97) Performer complete cylinder heads deliver 24 horsepower over stock and raise the peak power level by 500 rpm. These heads are designed to accept factory style self-aligning rockers. Performer LT1 cylinder heads are 50-state street legal and accept factory center bolt valve covers. They feature exhaust ports in the stock location for use with stock or aftermarket exhaust manifolds and headers. Match with RPM Air-Gap intake #7107, throttle body #3809 and camshaft #2108 for the Total Power Package combo. Cylinder Head Specifications: 芒鈧垄 Finish: Satin 芒鈧垄 Designed for use with Hydraulic Roller camshafts 芒鈧垄 Intake runner volume: 170cc 芒鈧垄 Exhaust runner volume: 60cc 芒鈧垄 Combustion chamber volume: 54cc 芒鈧垄 Intake valve diameter: 1.94芒鈧聺 芒鈧垄 Exhaust valve diameter: 1.55芒鈧聺 芒鈧垄 Valve stem diameter: 11/32" 芒鈧垄 Valve guides: Manganese Bronze 芒鈧垄 Valve spring diameter: 1.46芒鈧聺 芒鈧垄 Valve spring maximum lift: .600芒鈧聺 芒鈧垄 Rocker stud: 3/8芒鈧聺 芒鈧垄 Guide plate: Hardened Steel 芒鈧垄 Pushrod diameter: 5/16" 芒鈧垄 Valve angle: 23 Degrees 芒鈧垄 Exhaust port location: Stock 芒鈧垄 Deck thickness: 5/8芒鈧聺 芒鈧垄 Spark plug fitment: 14mm x 3/4 reach, gasket seat
More Information
Manufacturer Edelbrock
Application Application Specific
UPC 00085347619054
Series Performer
Quantity Sold Individually
Guide Plate Material Hardened Steel
Camshaft Type Hydraulic Roller
Horsepower 300-450 HP
Availability Note Available to Order
Warranty 12 Months
Seat Angle Exhaust 45 deg/Intake 45 deg
Emissions Code
EO Number: D-215-70
Hazardous Materials Warning WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • Head Bolt Kit: Edelbrock # 8550
  • Head Gasket: Edelbrock # 7342
  • Intake Gasket: Fel-Pro # 7243
  • Exhaust Gasket: Edelbrock # 7248
  • Recommended spark plugs: Champion RC12YC
Intake Valve Diameter 1.94 in
Intake Runner Volume 170 cc
Material Aluminum
Push Rod Diameter (Suggested) 0.375 in
Rocker Stud Diameter 0.4375 in
Valve Angle 23 deg
Valve Spring Diameter 1.46 in
Valve Spring Maximum Lift 0.600 in
Valve Stem Diameter 0.3125 in