inc. GST
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Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These heads give great torque and horsepower up to 6500 rpm.
Combustion chamber
volume: 60cc
Intake runner volume:
190cc
Exhaust runner volume:
90cc
Intake valve diameter:
2.05" - Not
included
Exhaust
valve diameter:
1.60" - Not included
Valve stem diameter:
11/32"
Valve guides:
Manganese bronze
Deck thickness: 5/8"
Valve spring
diameter: 1.55" -
Not included
Valve
spring maximum lift:
.580" - Not included
Rocker stud:
7/16" - Not included
Guideplate:
Hardened Steel - Not included
Pushrod diameter:
5/16"
Exhaust port location:
Stock
Spark plug fitment:
14mm x 3/4" reach, gasket
seat
Made In:
USA