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W8 vs. W9 Engines: What are the major differences?
#1045783
08/02/11 01:56 PM
08/02/11 01:56 PM
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Joined: Jun 2008
Posts: 577
Arkansas
Adrielp
OP
mopar
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OP
mopar
Joined: Jun 2008
Posts: 577
Arkansas
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Also, which will make more power? Kind of curious on the differences between the two engines.
Adriel Paradise
Substation Design Engineer III
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: Adrielp]
#1045784
08/02/11 02:34 PM
08/02/11 02:34 PM
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Joined: Feb 2009
Posts: 1,019
Finland
mafo
super stock
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super stock
Joined: Feb 2009
Posts: 1,019
Finland
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w8 heads have more meat, just more to work with when making all out heads, w9 are lightweight castings I guess w8 s make more power if you know what you are doing 
Last edited by mafo; 08/02/11 02:36 PM.
-65 Valiant,420", all motor,2700#, dot tires, 8,42 @ 160,2
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: fishy340]
#1045786
08/02/11 02:56 PM
08/02/11 02:56 PM
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Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
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Quote:
w8's are more exotic $ there basicly chunks of aluminum that resemble heads..make more power yes in the right hands,,w9 just an awesome head...cheaper,lighter and will make power..w8 is awesome,but requires good amount of work 
Correct....
You can score a Craftman Truck head ready to go, but it will not have the capability of say a CFE 10* deal.
We have a Coleman/Arrington 15* that makes nice power, but the heads that we're sending to CFE for a future build are so raw, there isn't even a spark plug hole.
The 8s have more meat than a 9 and I doubt a killer program for an 8 can be applyed to a 9......but I'm not positve about that.
Last edited by jim sciortino; 08/02/11 02:57 PM.
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: Adrielp]
#1045787
08/02/11 03:17 PM
08/02/11 03:17 PM
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Joined: Jun 2010
Posts: 3,112
LONG ISLAND
fishy340
master
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master
Joined: Jun 2010
Posts: 3,112
LONG ISLAND
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Quote:
Also, which will make more power? Kind of curious on the differences between the two engines.
i forgot to say engines are the same 48* block! hope it answer ur question.
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: Adrielp]
#1045789
08/02/11 05:39 PM
08/02/11 05:39 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Also, which will make more power? Kind of curious on the differences between the two engines.
A W-8 needs a ton of work to make them a usable head
in most cases but has more potential flow over a W-9...
a W-9 is a combination of a W-7 and W-8 but in a light
weight version... a maxed out W-9 will flow right at
365 @ .700(thats what both sets I have did)... 1 set
was CNC ported and the other was hand ported by Ryan...
W-9 is much easier to come by now days
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: Adrielp]
#1045790
08/02/11 05:59 PM
08/02/11 05:59 PM
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Joined: Oct 2010
Posts: 2,428
Ambridge, Pa.
rickraw
top fuel
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top fuel
Joined: Oct 2010
Posts: 2,428
Ambridge, Pa.
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ryan did my w9's. flowed 359.6 @ 700. 48* r3, 440 sb. pump gas. 9.65@137.53. street driven often.
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: rickraw]
#1045791
08/02/11 09:03 PM
08/02/11 09:03 PM
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Joined: Jan 2007
Posts: 437
south central pa
bdaz smblk
mopar
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mopar
Joined: Jan 2007
Posts: 437
south central pa
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I had w-9's on my short block before I put the pro stock truck w-8's on.My 9's only flowed 357@900 and the 8's flow well over 400@900 and the car only runs a tenth faster. Flow numbers don't mean as much as what people make them out to.About the only major difference is w-9's don't take a special valve cover.
3120lb, small block, 10.5" tire, NA, through exhaust, full int, WITH 83/4 REAR, 9.0 at 150mph
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: 340_Dart]
#1045792
08/02/11 09:52 PM
08/02/11 09:52 PM
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Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
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Quote:
[/quote}We have a Coleman/Arrington 15* that makes nice power
What's that motor just out of curiousity...
417ci, 9in deck R3. The heads have been on a couple bench including MBE and without the paperwork in front of me IIRC, 297cc intake and 403cfm @.800. Really good for a truck head, I'm told.
We built it to take oxide, but are going to run it NA. It has a ported 420 and an SV-1. On Precision Automotives inertia dyno, it made 894hp @ 8200 and 657tq @ 6700. The car it's going in (70' Dart) is getting paint and should be ready for an ATCO rent day by late September.
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: jim sciortino]
#1045793
08/02/11 10:07 PM
08/02/11 10:07 PM
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Joined: Jan 2007
Posts: 437
south central pa
bdaz smblk
mopar
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mopar
Joined: Jan 2007
Posts: 437
south central pa
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Quote:
Quote:
[/quote}We have a Coleman/Arrington 15* that makes nice power
What's that motor just out of curiousity...
417ci, 9in deck R3. The heads have been on a couple bench including MBE and without the paperwork in front of me IIRC, 297cc intake and 403cfm @.800. Really good for a truck head, I'm told.
We built it to take oxide, but are going to run it NA. It has a ported 420 and an SV-1. On Precision Automotives inertia dyno, it made 894hp @ 8200 and 657tq @ 6700. The car it's going in (70' Dart) is getting paint and should be ready for an ATCO rent day by late September.
Hey man I haven't forgot about calling u.I have just been crazy busy at work and my two little girl's when home.Good luck with your car and keep us posted.Kenny
3120lb, small block, 10.5" tire, NA, through exhaust, full int, WITH 83/4 REAR, 9.0 at 150mph
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: bdaz smblk]
#1045794
08/02/11 11:28 PM
08/02/11 11:28 PM
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Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
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Quote:
Quote:
Quote:
[/quote}We have a Coleman/Arrington 15* that makes nice power
What's that motor just out of curiousity...
417ci, 9in deck R3. The heads have been on a couple bench including MBE and without the paperwork in front of me IIRC, 297cc intake and 403cfm @.800. Really good for a truck head, I'm told.
We built it to take oxide, but are going to run it NA. It has a ported 420 and an SV-1. On Precision Automotives inertia dyno, it made 894hp @ 8200 and 657tq @ 6700. The car it's going in (70' Dart) is getting paint and should be ready for an ATCO rent day by late September.
Hey man I haven't forgot about calling u.I have just been crazy busy at work and my two little girl's when home.Good luck with your car and keep us posted.Kenny
Thanks Kenny....
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: jim sciortino]
#1045795
08/03/11 12:20 AM
08/03/11 12:20 AM
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Joined: Mar 2005
Posts: 2,172
Ohio
theclutcher
top fuel
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top fuel
Joined: Mar 2005
Posts: 2,172
Ohio
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Quote:
Quote:
We have a Coleman/Arrington 15* that makes nice power, but the heads that we're sending to CFE for a future build are so raw, there isn't even a spark plug hole.
Would love to see a pic of them.
Have any more?
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: theclutcher]
#1045797
08/03/11 07:56 AM
08/03/11 07:56 AM
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Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
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Quote:
Quote:
Quote:
We have a Coleman/Arrington 15* that makes nice power, but the heads that we're sending to CFE for a future build are so raw, there isn't even a spark plug hole.
Would love to see a pic of them.
Have any more?
No pics, but when I get a chance I'll have somebody with a camera snap a few and post em' up. I'm a cameraless bum. 
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: jim sciortino]
#1045798
08/03/11 08:17 AM
08/03/11 08:17 AM
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Joined: May 2007
Posts: 636
Central,Ohio
FASTFISH420
mopar
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mopar
Joined: May 2007
Posts: 636
Central,Ohio
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The W8 just have alot more meat to work with.I think you could make a honest 900 hp with a really good set of W9
s in the right hands.The W8 stuff is also very hard to come by and if you do find some usually will cost you a bundle.But hands down The W8 will make some killer power.Foltz at CFE still says it is the best small block wedge head out there..
1969 Barracuda 8 second all/motor small block
2014 Shelby GT500 Mustang
Uratchko Racing Engines
www.URE-RACING.com
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: FASTFISH420]
#1045799
08/03/11 08:19 AM
08/03/11 08:19 AM
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Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
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Quote:
The W8 just have alot more meat to work with.I think you could make a honest 900 hp with a really good set of W9
s in the right hands.The W8 stuff is also very hard to come by and if you do find some usually will cost you a bundle.But hands down The W8 will make some killer power.Foltz at CFE still says it is the best small block wedge head out there..
Makin' any headway with your killer???
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: bdaz smblk]
#1045800
08/03/11 08:51 AM
08/03/11 08:51 AM
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Joined: Jun 2010
Posts: 3,112
LONG ISLAND
fishy340
master
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master
Joined: Jun 2010
Posts: 3,112
LONG ISLAND
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Quote:
I had w-9's on my short block before I put the pro stock truck w-8's on.My 9's only flowed [Email]357@900[/Email] and the 8's flow well over [Email]400@900[/Email] and the car only runs a tenth faster. Flow numbers don't mean as much as what people make them out to.About the only major difference is w-9's don't take a special valve cover.
i agree 100% my indy's flowed 323@700 lift and my car is mid 9'r
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Re: W8 vs. W9 Engines: What are the major differences?
[Re: FASTFISH420]
#1045802
08/03/11 10:18 AM
08/03/11 10:18 AM
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Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
jim sciortino
top fuel
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top fuel
Joined: Apr 2007
Posts: 2,029
Trumbull,CT.
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Quote:
Quote:
Quote:
The W8 just have alot more meat to work with.I think you could make a honest 900 hp with a really good set of W9
s in the right hands.The W8 stuff is also very hard to come by and if you do find some usually will cost you a bundle.But hands down The W8 will make some killer power.Foltz at CFE still says it is the best small block wedge head out there..
Makin' any headway with your killer??? [/quo
The motor is at Uratchko's.He's done some head work and intake work,had the cam reground.changed the rockers,I cracked the Mohawk rockers,they were flexing way to much and killing my lift.so we had to go another route there.
He's just messing with it when he has the time.I had to take a break from it for awhile.The car is ready to go to Holts to 25.5 it also...
Nice.....
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