Performer Cylinder Heads For Chevy LT1

Performer Cylinder Heads For Chevy LT1 by Edelbrock
  • Cylinder Head Specifications:
  • Combustion chamber volume: 54cc
  • Intake runner volume: 170cc
  • Exhaust runner volume: 60cc
  • Intake valve diameter: 1.94"
  • Exhaust valve diameter: 1.55"
  • Valve stem diameter: 11/32"
  • Valve guides: Maganese Bronze
  • Deck thickness: 5/8"
  • Valve spring diameter: 1.46"
  • Valve spring maximum lift: .600"
  • Rocker stud: 3/8"
  • Guideplate: N/A
  • Pushrod diameter: 5/16"
  • Valve angle: 23°
  • Exhaust port location: Stock
  • Spark plug fitment: 14mm x .750 reach, gasket seat
Designed for 1992-97 LT1 small-block Chevy engines, these Performer 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 centerbolt 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.
  Bare (Single) Complete (Single)
Application Dyno Emissions Satin Satin
Performer LT1 - - 61905
Performer LT1 for NHRA Super Stock only - 61917 -
Edelbrock Installation Note INSTALLATION NOTE: 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.
#61905: Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 61 117 174 220 242 232 -
Exhaust 52 100 140 167 184 192 -
Edelbrock Tech Note TECH NOTE: Please view Cylinder Head Flow Data and Valve Springs & Retainers for all Edelbrock Performance Aluminum Cylinder Heads.
The following guide is designed to help you determine which Edelbrock components are legal for use on your vehicle. Learn more about Edelbrock Product Emissions Guide.

    50-State Legal
    For Racing Use ONLY
    For Use on Pre-Pollution Controlled Vehicles (PPCV)
    Stock Replacement Part
    Engine Swaps