Performer LT1 Cylinder Head (54cc)

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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.
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Edelbrock part #61905 Performer small-block Chevy LT1 (1992-97) Performer complete cylinder head delivers 24 horsepower over stock and raise the peak power level by 500 rpm. This head is designed to accept factory style self-aligning rockers. This Performer LT1 cylinder head is 50-state street legal and accept factory center bolt valve covers. It features 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: - Exhaust port location: Stock - Spark plug fitment: 14mm x 3/4 reach, gasket seat



Manufacturer Edelbrock
Application Application Specific
UPC 00085347619054
Series Performer
Quantity Sold Individually
Guide Plate Material Hardened Steel
Camshaft Type Hydraulic Roller
CARB Executive Order Number D-215-70
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
CNC Ported No
Combustion Chamber Volume 54 cc
Deck Height 9.025 in
Deck Thickness 0.625 in
Intake Valve Diameter 1.94 in
Exhaust Valve Diameter 1.55 in
Guide Plates Included No
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