Performer Small-Block Chevy Cylinder Head 64cc Hydraulic Flat Tappet

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The Edelbrock #60909 Performer Cylinder Heads are designed for 302-400 cid small-block Chevy engines up to 1986. These cylinder heads include your choice of 64cc or 70cc combustion chambers and high flow intake and exhaust ports.
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The Edelbrock #60909 Performer cylinder head is designed for 302, 327, 350 and 400 cid small-block Chevy engines up to 1986. This cylinder head includes your choice of 64cc (In order to retain stock compression ratio on 1970 and earlier small-blocks) or 70cc combustion chambers and high flow intake and exhaust ports. A Complete head includes larger-than-stock 1.46" valve springs to handle most high-lift cams. This head retains the stock intake port location for compatibility with standard manifolds and headers. Heat crossover is machined for 50-state emissions legal performance.

Documents & Installation Notes


Availability Available
Application Application Specific
UPC 00085347609093
Ech Ival Dia 2.02 in
Series Performer
Grade Type Performance
Quantity Sold Individually
Guide Plate Material Hardened Steel
Camshaft Type Flat Tappet
CARB Executive Order Number D-215-94
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-215-94
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
  • EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC FLAT TAPPET CAMSHAFT APPLICATIONS; Match with Edelbrock head gasket; When using hot air choke Q-Jet carbs and Performer manifold with above heads, choke kit #1932 is required.; Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.
CNC Ported No
Combustion Chamber Volume 64 cc
Deck Height 9.025 in
Deck Thickness 0.5625 in
Exhaust Valve Diameter 1.60 in
Guide Plates Included Yes
Intake Runner Volume 185 cc
Material Aluminum
Push Rod Diameter (Suggested) 0.3125 in
Rocker Stud Diameter 0.375 in
Valve Angle 23 deg
Valve Spring Diameter 1.46 in
Valve Spring Maximum Lift 0.575 in
Valve Stem Diameter 0.3438 in