NHRA LT1 Gen II Small-Block Chevy Super Stock Cylinder Head

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The Edelbrock part # 61917 small-block Chevy LT1 (1992-97) Performer NHRA 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. - 61917 Cylinder Heads are allowed for use in the NHRA Super Stock class - Combustion chamber volume: 54cc - Intake runner volume: 170cc - Exhaust runner volume: 60cc - Intake valve diameter: 1.94" - Exhaust valve diameter: 1.55"


Availability Available
Application Application Specific
GTIN 00085347619177
Availability Note Available to Order
Warranty 12 Months
Emissions Code N/A
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
  • Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. Match with Edelbrock head gasket sets.
CNC Ported No
Combustion Chamber Volume 54.0 cc
Deck Height 9.025 in
Deck Thickness 0.625 in
Guide Plates Included No
Intake Runner Volume 170.0 cc
Material Aluminum
Push Rod Diameter 0.312 in
Rocker Stud Diameter 0.375 in
Valve Angle 23 deg