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Starting from scratch which head?
#2024540
03/04/16 04:17 PM
03/04/16 04:17 PM
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Joined: Jul 2010
Posts: 2,422
Pittsburgh PA
Eric
OP
top fuel
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OP
top fuel
Joined: Jul 2010
Posts: 2,422
Pittsburgh PA
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Putting a 499" low deck together for the Arrow. With the CNC Indy SR's that were on it the car had gone 5.53 @ 125 with a tenth in the timer. Well...I've been thinking of trying another head possibly. Looking at the Trick Flows and the Eddy Victors. Do you folks think there is a gain or a loss to using either of these compared to the SR's?
5.53 @ 125 1/8th on the launch control..more left in her!
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Re: Starting from scratch which head?
[Re: Eric]
#2024688
03/04/16 10:01 PM
03/04/16 10:01 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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I wouldn't really call 440-1s "big boy pants". I think that would be more like B1-MCs or possibly Predators. In my opinion, unless you go to a serious head, the gains over what you have now will be little compared to money spent. Are the SRs fully ported, with Max Wedge size ports? If not, that would be a bit of a gain and require only a manifold change
Last edited by Monte_Smith; 03/04/16 10:03 PM.
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Re: Starting from scratch which head?
[Re: Eric]
#2024721
03/04/16 11:01 PM
03/04/16 11:01 PM
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Joined: Oct 2007
Posts: 4,206
New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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You can almost buy an entire turbo setup for what a really good set of heads costs (including porting, manifold, rockers, etc.).
Boffin Emeritus
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Re: Starting from scratch which head?
[Re: polyspheric]
#2024724
03/04/16 11:07 PM
03/04/16 11:07 PM
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Joined: Jul 2004
Posts: 19,317
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
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You can almost buy an entire turbo setup for what a really good set of heads costs (including porting, manifold, rockers, etc.). Ya, ya, most just jump on the power adder wagon and go fast just like they SHOULD but he`s done well n/a which personally impresses me more but it`s not about me so,.................. 
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Starting from scratch which head?
[Re: polyspheric]
#2024732
03/04/16 11:20 PM
03/04/16 11:20 PM
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Joined: Feb 2005
Posts: 20,173
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,173
PA.
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You can almost buy an entire turbo setup for what a really good set of heads costs (including porting, manifold, rockers, etc.). Eric runs the Super classes with the 4 tenths tree so a turbo isn't really the way to go
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: Starting from scratch which head?
[Re: Eric]
#2024744
03/04/16 11:40 PM
03/04/16 11:40 PM
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Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
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SR heads ported to MW size are short about 40 hp from a good set of 440-1 heads. If you want to go reasonably fast on a budget, my guess is 440-1 heads fully ported with 2.25 intakes and stock rockers and an easy to live with cam that won't beat them to death would be my idea of what to do. You run super classes, so ultimate power is less important to you than being able to make a lot of passes between maintainance, right?
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Starting from scratch which head?
[Re: gregsdart]
#2024748
03/04/16 11:44 PM
03/04/16 11:44 PM
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Joined: Nov 2004
Posts: 6,890
North Alabama
Monte_Smith
master
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master
Joined: Nov 2004
Posts: 6,890
North Alabama
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SR heads ported to MW size are short about 40 hp from a good set of 440-1 heads. If you want to go reasonably fast on a budget, my guess is 440-1 heads fully ported with 2.25 intakes and stock rockers and an easy to live with cam that won't beat them to death would be my idea of what to do. You run super classes, so ultimate power is less important to you than being able to make a lot of passes between maintainance, right? That's was the point. That's a lot of money spent for 40HP increase. If I was buying new castings, new rocker gear, new manifold, etc, I would want more gain than that. But that's just me
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Re: Starting from scratch which head?
[Re: Eric]
#2024760
03/05/16 12:00 AM
03/05/16 12:00 AM
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Joined: Oct 2004
Posts: 5,618
long island NY
Ari440
master
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master
Joined: Oct 2004
Posts: 5,618
long island NY
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I have indy sr,s and indy 440-1cnc 345s and now putting together a set of B1s
I spent lots of money to get to the next step
it all depends on you what you could afford
looking back at what I did should have bougth the B1s
1.39 9.85 - 137 mph
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Re: Starting from scratch which head?
[Re: Eric]
#2024826
03/05/16 02:12 AM
03/05/16 02:12 AM
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Joined: Jan 2003
Posts: 6,591
Canton, Ohio
Sport440
master
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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The SR,s are the middle of the two other heads listed. Ported as your SR,s are, Id stay with them. Your car is light , and for the type of racing you do, is a fine head for your performance needs. My answer, no on the Victors and the Trick flows, keep what you have.
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anything less and you may as well stay with what you have.
