Shady Dell Speed Shop
2440 Commercial Blvd.
State College, PA 16801
(814) 308-8058

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Email us here:
dart69360@hotmail.com


 

 

MOPAR PERFORMANCE W9 HEAD PORTING
(click thumbnails for larger view)
 


Chapman CNC W9 Raised Port Chamber
 

Chapman CNC W9 Raised Port Head
 

Chapman CNC W9 Raised Port Head
 

Chapman CNC W9 Raised Port Intake Ports
 

Chapman CNC 410" Standard W9 Methanol chamber
 

“OUT OF BOX W9”
 


“SHORT TURN”
 

“W9 “AB” HEAD CHAPMAN CNC CHAMBER”
 

“AS CAST VS: PORTED
 

“FINISHED SET OF HAND PORTED W9 NON AB CHAMBERS”
 

“INTAKE BOWL”

 

“FINISHED HEAD”
 

“FINISHED HEAD”
 

“272 CC RUNNER”
 

“AS CAST VS: PORTED”


FLOW #”s

LIFT-----AS-CAST--------PORTED
------------IN/EX-----------IN/EX
.100”------72.5/N/A--------74.2/N/A
.200”---129.4/103.5-----141.5/102.8
.300”---189.8/146.6-----200.1/158.7
.400”---239.8/172.5-----245.0/203.6
.450”---265.6/176.0-----276.0/215.6
.500”---288.1/182.8-----303.6/226.0
.550”—293.2/182.8-----332.2/233.6
.600”---295.0/184.6-----349.8/241.5
.650”---295.0/184.6-----370.2/247.7
.700”---295.0/184.6-----379.2/251.1
.750”----N/A/N/A--------387.5/258.1

All #’s at 28” of water
No flow tube on exhaust port
2.15”/1.60” Ferrea Competition Plus Stainless Valves
52 Degree Intake Seat angle, 37 Degree Back Cut
45 Degree Exhaust Seat angle, 30 Degree Back Cut

For more information on W9 cylinder heads email RyanJ@shadydellspeedshop.com

________________________________________________________
 

CHAPMAN RACING HEADS 261 CC SPRINT W9
CNC PORTED BY CHAPMAN RACING HEADS
COMPLETE INTAKE PORT RE-WORK BY SHADY DELL TO 268 CC
 

"CHAPMAN W9 CNC EXHAUST PORTS"
 

"CHAPMAN W9 CNC INTAKE RUNNERS"
 

"CHAPMAN W9 CNC INTAKE BOWLS"
 

"W9 RP (RAISED PORT) on left, "regular" W9 on right. W9 RP heads have .800" Raised intake ports. W9 RP hand port development, in house at Shady Dell will occur winter 2004/2005. Stay tuned...."
 
FLOW #’s

CHAPMAN CNC----SD REWORK
LIFT------IN/EX-----------------IN
.100”—75.9/N/A----------------79.4
.200”—148.4/102.8-------------153.6
.300”—216.7/158.7-------------219.1
.400”—276.0/203.6-------------276.0
.450”—297.4/215.6-------------305.3
.500”—319.9/226.0-------------331.2
.550”—335.2/233.6-------------357.6
.600”—345.9/241.5-------------372.6
.650”—349.8/247.7-------------381.2
.700”—351.7/251.1-------------389.1

All #’s at 28” of water
No flow tube on the exhaust
2.180”/1.625” Ferrea Competition Plus valves
37 Degree back cut on intake valves in reworked port
52 Degree Intake seat on rework/45 degree exhaust seat
Originally intended for 360” Sprint car engine. Reworked for 415” Drag engine.