Head Mods???
06-10-2007 | 10:25 AM
#2
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Joined: Sep 2004
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From: St Paul , MN.
Whats the budget ?
Oring , Studs , port & polish , 3 angle valve & seats , and cut off intake casting and make a manifold , 60lbs springs ,
You just have to know where your going and how much to spend .
Oring , Studs , port & polish , 3 angle valve & seats , and cut off intake casting and make a manifold , 60lbs springs ,
You just have to know where your going and how much to spend .
06-10-2007 | 01:15 PM
#3
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Joined: Nov 2005
Posts: 7,785
Likes: 3
From: Pattonville, Texas
X 2 - especially the part where we machine off the intake and mount our own 304SS version in it's place.
Besides the obvious HP & torque benefits, IMO the intake mod and a Helix cam is the best way to get much better part-throttle/low boost efficiency & power (via better breathing) from a CTD.
Besides the obvious HP & torque benefits, IMO the intake mod and a Helix cam is the best way to get much better part-throttle/low boost efficiency & power (via better breathing) from a CTD.
06-10-2007 | 05:04 PM
#5
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Joined: Nov 2005
Posts: 7,785
Likes: 3
From: Pattonville, Texas
The intake manifold section of the cylinder head casting hinders ready access to the intake ports & bowls, but by removing that part to leave a "bare" head, it can be properly ported. That also provides an opportunity to fabricate a separate intake manifold that flows much better - especially at low valve lifts and near-atmospheric intake charge pressures.
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06-10-2007 | 07:13 PM
#8
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Joined: Apr 2005
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From: DIXON, CA.
The intake manifold section of the cylinder head casting hinders ready access to the intake ports & bowls, but by removing that part to leave a "bare" head, it can be properly ported. That also provides an opportunity to fabricate a separate intake manifold that flows much better - especially at low valve lifts and near-atmospheric intake charge pressures.
06-11-2007 | 10:23 AM
#10
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Joined: Sep 2004
Posts: 2,888
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From: St Paul , MN.
HummerFSR
I do not do all this work , no more shop , then you ask , all this head work , I am not a fan of the bolt on plenum's -ATS- [ not enough gain for the costs ] ,
The cutting off of the cast intake part of the head & make a intake would be a big cost of making the best head , this is not all that comin , at your average machine shop , I would look for someone nearby that is already doing it , some with most of this , its always best to find a shop that is familiar with the work you want done , it would help if you put your location in the user control panel .
The places that do some of this , like the port & polish , usually have at least 2 levels of that job , so for pricing you want to talk to those who do it , there is not enough of it to do price shopping of the cast intake work , the rest is more comin , then how much of the R&R work are you going to do ?
SWAG - scientific wild *** guess , you could spend a couple thousand plus .
I do not do all this work , no more shop , then you ask , all this head work , I am not a fan of the bolt on plenum's -ATS- [ not enough gain for the costs ] ,
The cutting off of the cast intake part of the head & make a intake would be a big cost of making the best head , this is not all that comin , at your average machine shop , I would look for someone nearby that is already doing it , some with most of this , its always best to find a shop that is familiar with the work you want done , it would help if you put your location in the user control panel .
The places that do some of this , like the port & polish , usually have at least 2 levels of that job , so for pricing you want to talk to those who do it , there is not enough of it to do price shopping of the cast intake work , the rest is more comin , then how much of the R&R work are you going to do ?
SWAG - scientific wild *** guess , you could spend a couple thousand plus .
06-11-2007 | 09:49 PM
#11
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Joined: Apr 2006
Posts: 865
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From: fresno,Ca
get ahold of Rchard Brown of Browns Diesel here in Riverdale,Ca
he has done plenty of those and put the ZZ fab on it and they have all turned out really really well. www.brownsdiesel.com
he has done plenty of those and put the ZZ fab on it and they have all turned out really really well. www.brownsdiesel.com
