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 W5 HEAD PORTING
(click thumbnails for larger view)
 


CNC Intake Bowl
 

CNC Ported Intake Runners
 

CNC Intake Runner, 217 CC
 

CNC Combustion Chamber
 

CNC Exhaust Short Turn
 

CNC Exhaust Bowl
 

CNC Intake Short Turn
 

CNC Chamber
 

CNC Exhaust Ports
 

CNC Exhaust Ports
 

CNC Exhaust Port
 

Stage 4 W5 Exhaust Port
 

Stage 4 W5 Exhaust Port
 

Stage 4 W5 Intake Short Turn
 

Stage 4 Chamber
 

Stage 4 Intake Short Turns
 

Stage 4 Intake Bowl
 

Stage 4 Exhaust Short turn
 

Stage 4 Intake Runners
 

“AS CAST LAST GENERATION W5”
 

“FULLY PORTED W5 READY TO ASSEMBLE”
 

“W5 CLOSED CHAMBER, FULLY PORTED”
 

“W5 CHAMBER/ INTAKE BOWL”

“CHAMBERS ARE ENLARGED NEARLY 10 CC FROM OUT OF BOX CONFIGURATION TO DE-SHROUD THE VALVES FOR INCREASED FLOW”
 

“INTAKE SHORT TURN IS CRITICAL TO W5 FLOW CAPABILITY”

“FULL SHADY DELL PORT ON RIGHT VS: ANOTHER SHOPS ATTEMPT AT “PORT WORK”
 

“SAME PAIR OF INTAKE RUNNERS”

“218 CC INTAKE RUNNER”
 

“PORTED VS: UNPORTED EXHAUST PORTS”

“W5 EXHAUST PORTS REQUIRE CONSIDERABLE ENLARGING TO CREATE THE INCREDIBLE FLOW #’S THEY CAN SUPPORT”
 

“THESE ARE AN EXCEPTIONAL PAIR OF 59 DEGREE EXHAUST PORTS”

"W5 Intake Port Cross Section"

"W5 Exhaust Port Cross Section"
 
FLOW #’s

STOCK AND CNC PORTED FLOW #’s

LIFT------AS CAST-------CNC PORTED
.100”----60.7/44.9-----------71.5/N/A
.200”----104.2/82.8---------142.1/113.9
.300”----155.3/122.5-------203.6/150.1
.400”----206.7/149.0-------256.0/194.9
.450”----228.4/157.0-------280.2/212.2
.500”----243.9/163.9-------300.2/225.3
.550”----257.0/167.3-------311.5/233.9
.600”----263.2/171.8-------319.2/238.1
.650”----265.7/172.8-------327.0/241.5
.700”----262.9/172.8-------328.1/244.3

All #’s at 28” of water
NO Flow tube on exhaust
2.08”/1.60” Ferrea Competition Plus Stainless Steel Valves 30 Degree back cut on the intake valves.

STAGE 4 HAND PORTED MAX EFFORT W5

LIFT----IN/EX
.100"--71.5/N/A
.200"--145.3/120.1
.300"--209.0/170.9
.400"--260.0/217.1
.450"--282.0/233.4
.500"--302.7/245.3
.550"--319.2/254.1
.600"--334.7/258.4
.650"--337.1/260.8
.700"--337.1/262.8

All #’s at 28” of water
NO Flow tube on exhaust
2.08”/1.60” Ferrea Competition Plus Stainless Steel Valves 30 Degree back cut on the intake valves. 24 degree radius on exhaust valves
 

One of the most frequent questions I get asked, is regarding the different generations of W5 heads and how to identify them. It is widely known that some of the earlier W5 heads had casting problems, and many customers want to avoid those heads. Here is a quick synopsis of how to quickly ID different generations of W5 cylinder heads:
 

“THIS CYLINDER HEAD HAS NO CORE PLUGS IN THE ENDS, ALSO DOES NOT HAVE THE HORSESHOE SHAPED BOSS ON THE END…. THIS IS A VERY EARLY W5, MOST LIKELY LATE 1980’s EARLY 1990’s”
 

“THIS IS A LAST GENERATION W5, WITH BLUE ANODIZED ALUMINUM ¾” NPT PIPE PLUGS IN THE ENDS. THESE ARE KNOWN AS THE “CORE PLUGS” BECAUSE THEY WERE ADDED TO HELP REMOVE THE SAND FROM THE CASTING CORES DURING THE CASTING PROCESS AT THE FOUNDRY. MIDDLE GENERATION W5 HEADS WILL HAVE THIS HORSESHOE SHAPED BOSS THE PLUGS ARE LOCATED IN, BUT WILL NOT HAVE THE PLUGS IN THEM.
 

“OF COURSE THE CASTING #’S THEMSELVES TELL A TALE AS WELL….ALL W5’s WILL HAVE THE SAME CASTING # 4452926, HOWEVER THIS IS AN OLDER HEAD, IT ONLY HAS THE CASTING # AND NO OTHER INFO CAST BETWEEN THE #1 AND #3 SPARK PLUG HOLE.

“NEWER HEADS WILL HAVE THE CASTING # LOOK LIKE THIS ONE, AND WILL ACTUALLY HAVE THE W5 LOGO. ALSO THIS SET HAS A CASTING DATE. USUALLY THESE ARE ALL 1996 CASTINGS. WITH THIS ONE BEING 5/2/96

THIS IS LAST GENERATION W5. CONSIDERED BY SOME TO BE THE BEST CASTINGS OF ALL. THE CASTING #’S ARE SIMILAR TO THE 1996 HEAD ABOVE, HOWEVER THE DATE HAS BEEN DROPPED AND THE K036 LOGO HAS BEEN ADDED. THESE ARE PROBABLY 1998 CASTINGS, AND WILL USUALLY EXHIBIT GOOD CASTING AND MACHINING QUALITY. THESE CASTINGS WILL HAVE A FOUR DIGIT SEQUENCE OF LETTERS AND NUMBERS ABOVE THE CASTING # SUCH AS THE KO36 IN THE PICTURE, BUT COULD BE ANY DIFFERENT COMBINATION OF LETTERS AND #’s SUCH AS L196 ETC.
 

IF YOU HAVE ANY OTHER QUESTIONS REGARDING IDENTIFYING A CERTAIN SET OF W5 CYLINDER HEADS, JUST SEND AN EMAIL TO RyanJ@shadydellspeedshop.com FOR MORE INFORMATION.