CYLINDER HEADS - Ford - Small Block - RPM XT

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.
Click Here to download the dyno shootout PDF of the RPM Xtreme vs. competitors fully CNC ported head. Click Here For push rod spec chart.

PERFORMER RPM XTREME WITH 2.02" INTAKE VALVES
Chamber Size Intake Port Size Valve Sizes (in/ex) Bare (single) Complete (single)
59cc 185cc 2.02"/1.57" N/A #51259*
 

Flow Data tested @ 28" H20 (rated in CFM)
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 78 146 213 257 281 292 285
Exhaust 63 119 173 197 205 209 210
* Not legal for sale or use on pollution controlled motor vehicles.
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