Performer RPM Cylinder Heads for Small-Bore Chevy Small-Block V8 Engines

Special Price $526.85 Regular Price $642.50
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Edelbrock has expanded its line of small-block Chevrolet cylinder heads to include the new Performer RPM Cylinder Head designed specifically for small-bore engines. The new Edelbrock Performer RPM Small-Bore Cylinder Heads are engineered for use with 265, 283, 305 and 307 cubic-inch small-block Chevy engines produced from 1954-2003 with bore sizes less than 4.000 inches. To accommodate the smaller bores, valve spacing on these heads have been reduced to 1.817 inches while maintaining the early-style Gen 1 (1959-86) valve cover bolt pattern so that you can use your favorite small-block Chevy valve covers. These new Performer RPM heads also retain the stock straight spark plug angle and exhaust flange bolt pattern for ease of use with factory-style exhaust systems. Edelbrock Performer RPM Small-Bore Cylinder Heads are legal for use on pre-pollution-controlled vehicles only. Available bare (#61009), with springs for flat-tappet (#61019) or with springs for hydraulic roller camshaft (#61015); these heads can also be used with larger-bore engines if desired. Like all other Edelbrock Performer RPM series cylinder heads, these feature a thick 9/16-inch deck, extra-thick port walls, high-flowing ports, ductile iron seats, one-piece stainless-steel valves, and high-quality rocker studs. Edelbrock cylinder heads also feature state-of-the-art compact combustion chambers and highly efficient ports that offer improved performance and great throttle response throughout the rpm range. Other top-quality features include threaded inserts for rocker studs and exhaust bolts for superior strength and durability, as well as manganese-bronze valve guides. These cylinder heads are designed in-house, cast from A356 aluminum, heat treated to T-6 specs, and machined in Edelbrock’s Southern California USA manufacturing facilities for unsurpassed quality and performance.

Documents & Installation Notes


Availability Available
Ech Ival Dia 1.91 in
Grade Type Performance
Application Application Specific
UPC 00085347610099
Availability Note Available Only While Supplies Last
Warranty 12 Months
Emissions Code
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
Combustion Chamber Volume 60 cc
Exhaust Valve Diameter 1.50 in
Guide Plates Included No
Intake Runner Volume 170 cc
Material Aluminum
Push Rod Diameter 0.312 in