RHS Raised Runner 23 Degree Cast Iron Cylinder Head

The best flowing 23 degree style heads available for maximum horsepower applications.

Intake air flow in the 330 cfm range with over 220 cfm on the exhaust side.  

The intake flange is raised .600” achieving a better flow angle into the cylinder. Shaft rockers and .600” longer valves are required. Angle milled from the factory to a 21 degree valve angle, allowable by most sanctioning bodies where the original valve angle is required.  

CNC ported RHS Raised Runner cast iron head. Intake port size is 256 cc's.  CNC combustion chamber on the RHS Raised Runner cast iron head. Stock chamber size is 56 cc's.
Part #
 CNC Sportsman Ported RHS 23 degree raised runner castings, bare. pair.



                                  RHS Pro Torker Heads                             RHS Vortec Heads                  

Free Custom Camshaft: Now, with your purchase of a complete set of modified heads and a matching, modified intake, we will supply a custom ground flat tappet camshaft designed specifically for your application. 

Cylinder Head Design Form: Fill out our online form for a recommendation and pricing on a set of heads built specifically for your application. Also, here is a link to more detailed information on our Complete Cylinder Head Assemlies.

Cylinder Head FAQ'S

Sending your cylinder heads to us for modifications?

Brzezinski Racing Products, Inc. The #1 Name in Cast Iron. Call us toll free at 866-236-6300

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