CYLINDER HEADS - Ford - Small Block - RPM
 
Street Legal & Street High-Performance Heads
 
 
RPM XTREME CYLINDER HEAD FOR SMALL-BLOCK FORD
Designed for 351W and larger high-performance street and racing applications, our new RPM Xtreme cylinder heads give you the best combination of as-cast port design and CNC porting technology. This proven combination provides you with a powerful cylinder head at a lower cost than a typical fully CNC'd head. They feature an 18° valve angle, CNC-machined 59cc combustion chambers, 185cc intake ports, lightweight 2.02" intake valves with 8mm stems, and beehive valve springs.
 
PERFORMER RPM WITH 1.90" INTAKE VALVES
Chamber Size Intake Port Size Valve Sizes (in/ex) Bare (single) Complete (single)
59cc 185cc 2.02"/1.57" N/A #51259*
 
 
 
Performer RPM Ford
  • Designed for non-emissions 289, 302, and 351-Windsor Ford engines
  • Maximum performance in the 1500-6500 rpm range for high performance street
  • 1.90" intake valves are for use with stock pistons
  • High-flow 2.02" intake valves are for use with pistons notched for valve clearance

 
PERFORMER RPM WITH 1.90" INTAKE VALVES
Chamber Size Intake Port Size Valve Sizes (in/ex) Bare (single) Complete (single)
60cc 170cc 1.90"/1.60" #60219* #60229*
 
PERFORMER RPM WITH 2.02" INTAKE VALVES
60cc 170cc 2.02"/1.60" #60249* #60259*
 
PERFORMER RPM WITH 2.02" INTAKE VALVES MACHINED FOR FEL-PRO® LOC WIRE™ GASKET
60cc 170cc 2.02"/1.60" N/A #60269*
 
POLISHED PERFORMER RPM WITH 2.02" INTAKE VALVES
60cc 170cc 2.02"/1.60" N/A #602519*
Note: Hardened pushrods required, we recommend Edelbrock #9632 for flat tappet engines only. Will not accept rail rockers. Ford 289-302 V8s require Head Bolt Bushings #9680 and either Edelbrock Head Bolt Kit #8552 (7/16") or stock head bolts. See Cylinder Heads Specs for information. See chart in Edelbrock head gasket sets.
 
 
Performer RPM 351C
  • Designed for 351C, 351M and 400M
  • Very streetable 190cc intake runners
  • 2.05" intake and 1.60" exhaust valves
  • "Compact charge" combustion chamber design
  • Optimized spark plug location
 
PERFORMER RPM FOR FORD 351C
Chamber Size Intake Port Size Valve Sizes (in/ex) Bare (single) Complete (single)
60cc 190cc 2.05"/1.60" #61609* #61629*
Note: When bolting on to 289/302 engines using 7/16" bolts, use stepped head bolt washer kit #9680.
* Not legal for sale or use on pollution controlled motor vehicles.
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