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  RHS Cylinder Heads
Pro Action 23° - Raised Runner
Cast Iron Cylinder Heads

Designed for circle track and Nostalgia Drags Junior Class B Fuel competition, these cast iron heads have been angle milled from the factory to a 21° valve angle, thereby increasing performance potential. This cost saving modification is acceptable with most race sanctioning bodies, who typically allow a two-degree plus or minus valve angle change. The Pro Action™ 23°
Style Raised Runner Heads are available in three configurations, including the standard “as cast” version with 220cc intake runners, raised runner Ports with machined seats and guide holes and raised runner P-Ports without machined seats or guide holes.
  • Ideal cast iron head for circle track & nostalgia drag racing engines
  • Angle-milled to 21° valve angle – allowable by most sanctioning racing
    bodies where original valve angle is required
  • P-Port versions allow for custom porting & are available with or without
    machined valve seats & guide holes
  • Standard “as cast” version features hardened multi-angle 2.080" intake
    & radiused 1.600" exhaust valve seats

Order online below or
call us at (603) 378-0090
Part # Description Runner Chamb. Spark
Plugs		 IN
Valve		 EXH
Valve		 Application Price/
Each		 Order
Online
SMALL BLOCK CHEVY - PRO ACTION™ 23° STYLE RAISED RUNNER CYLINDER HEADS, CAST IRON (Bare)
12801 As Cast
 		 220cc 64cc Angle 2.125" +
.500" Long		 1.625" +
.500" Long		 350-421 $CALL order here
12802 Seats/Guides Installed 220cc n/a n/a n/a n/a 350-421 $CALL order here
12803 No Seats/Guides 220cc n/a n/a n/a n/a 350-421 $CALL order here
 
 
 
 
 
 
 
 
 
 
 
 
Sales/Tech Line: (603) 378-0090
Email: tech@flatlanderracing.com

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*All prices on this site are subject to change without notice. Flatlander Racing™ disclaims responsibility for any printing or typographical errors, and does not guarantee that all information is accurate.

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