Shady Dell Speed Shop
770 Shady Dell Rd.
Port Matilda, PA 16870
(814) 574-2543

(Please leave voice mail if
no answer after 30 seconds)

Email us here:
info@shadydellspeedshop.com

 

  

MOPAR PERFORMANCE W8 HEAD PORTING
(click thumbnails for larger view)
 

Arrington/Phil Coleman designed Nascar W8 with fresh valve job before hand blending
 
Arrington/Phil Coleman Nascar W8 with fresh valve job
 

"CNC Arrington W8"
 
"CNC Arrington W8 with oil drainback lines added"
 

"CNC Arrington W8 Intake Bowl"
"CNC Arrington W8 Exhaust Port"
 

"CNC Arrington W8 "Raised Seat" (RS) Chamber"		 t size="2" face="Tahoma">
"CNC Arrington W8 Intake Runner"
 

"W8 Motor"


FLOW #’s

LIFT-----CNC ARRINGTON PORTS
.100”----67.3/N/A
.200”—127.7/96.6
.300”—198.4/138.0
.400”—277.1/200.5
.450”---312.3/222.5
.500”---339.2/236.3
.550”---359.6/248.4
.600”---377.3/258.8
.650”---386.2/267.4
.700”---392.5/270.8
.750”---393.3/274.3
.800”---393.3/276.4

All #’s at 28” of water
No flow tube on the exhaust
2.16”/1.625” Del West Titanium Valves
52* Intake Seat Angle 37* Back Cut On Intake Valves
45* Exhaust Seat Angle
 

CNC PORTED BY CHAPMAN RACING HEADS
HAND BOWL BLEND BY SHADY DELL

FLOW #’s

LIFT------CNC PORT
.100”—69.0/N/A
.200”—138.0/101.8
.300”—203.6/155.2
.400”—262.2/200.1
.450”—289.8/212.2
.500”—314.0/219.0
.550”—336.0./228.7
.600”—352.9/232.9
.650”—366.3/238.0
.700”—372.2/240.8
All #’s at 28” of water
No flow tube on the exhaust
2.180”/1.625” Del West Titanium Valves
33 degree back cut on intake valve, 30 Exhaust.
269 CC intake runner volume
NASCAR Craftsman Truck Series Cylinder Head