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Re: Best head for boosted applications
[Re: Dave W]
#612636
02/13/10 07:33 PM
02/13/10 07:33 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:
Wondering what small block head is better for boosted applications, W-8 or W-9 heads?
Thanks!
Either or... with a pressurized intake system it isnt
all that critical due to the pressure but a W-8 will
flow more than a W-9 so it would be easier with the W-8
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Re: Best head for boosted applications
[Re: MR_P_BODY]
#612637
02/13/10 08:38 PM
02/13/10 08:38 PM
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Joined: Jun 2005
Posts: 2,776
Ontario Canada
MattW
master
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master
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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I was always told you want a really good flowing exhaust port, the intake is not all that important.  Matt
Last edited by MattW; 02/13/10 08:38 PM.
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Re: Best head for boosted applications
[Re: Dave W]
#612640
02/14/10 10:29 AM
02/14/10 10:29 AM
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Joined: Nov 2006
Posts: 1,090
north cakalaky
instigator
super stock
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super stock
Joined: Nov 2006
Posts: 1,090
north cakalaky
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I have read that the w9 is the lightest aluminum smallblock head made....so may be a little weak to use in very high horsepower forced induction applications......though definetly not sure on this at all.
From my own experiences with smallblock edelbrock heads, they were plenty robust to hold upwards of 25lbs of boost without lifting the heads as happens with many other 4-bolt head designs....
65 Barracuda
All aluminum Indy HEMI with some boost!
COMING TO A TRACK NEAR YOU!
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Re: Best head for boosted applications
[Re: instigator]
#612641
02/14/10 10:39 AM
02/14/10 10:39 AM
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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:
I have read that the w9 is the lightest aluminum smallblock head made....so may be a little weak to use in very high horsepower forced induction applications......though definetly not sure on this at all.
From my own experiences with smallblock edelbrock heads, they were plenty robust to hold upwards of 25lbs of boost without lifting the heads as happens with many other 4-bolt head designs....
True that they are the lightest head BUT they also
have 6 bolts per cyl to hold them down.... also
they have a very good exhaust port which should
really help in a pressurized system
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Re: Best head for boosted applications
[Re: Dave W]
#612642
02/14/10 11:14 AM
02/14/10 11:14 AM
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Joined: Sep 2003
Posts: 1,138
San Angelo, Texas
W8n2DustU
super stock
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super stock
Joined: Sep 2003
Posts: 1,138
San Angelo, Texas
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Quote:
Wondering what small block head is better for boosted applications, W-8 or W-9 heads?
Thanks!
Will be able to tell you real soon how good the W8's work. Very small chamber on them. Will be a little tricky getting a good tuneup with alot of boost. Dave are you going smallblock again? Shoot me some picks of your car. Patrick was telling me a little about it.
2010 Toxic Orange Challenger built by B and B Racecars! All aluminum R4/P5 engine, Proformance TH400 (3 speed) tranny, full Reid case, nodular 9" rearend, full Dragpak suspension, Protorque custom converter, BS3, PTE 85mm turbo, fire core wires, carbon doors, carbon front clip, and a whole lot more!
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Re: Best head for boosted applications
[Re: W8n2DustU]
#612643
02/14/10 11:33 AM
02/14/10 11:33 AM
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Joined: Feb 2004
Posts: 1,093
Long Beach, CA
Mike Swann
super stock
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super stock
Joined: Feb 2004
Posts: 1,093
Long Beach, CA
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the W9's tend to crack in the rocker supports in all out drag racing applications.
8.30's @3400 lbs
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Re: Best head for boosted applications
[Re: Mike Swann]
#612644
02/14/10 02:23 PM
02/14/10 02:23 PM
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Joined: Dec 2003
Posts: 1,325
Orlando Fl
Dos Snails
pro stock
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pro stock
Joined: Dec 2003
Posts: 1,325
Orlando Fl
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Quote:
the W9's tend to crack in the rocker supports in all out drag racing applications.
I never hear this for people who use them for racing , just people repeating it. 
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