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Questions for Indy SR head users #1454000
06/16/13 08:56 PM
06/16/13 08:56 PM
Joined: Aug 2009
Posts: 2,042
Mooresburg, Tn
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'72CudaRacer Offline OP
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'72CudaRacer  Offline OP
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Mooresburg, Tn
I'm thinking of buying Indy SR heads and had some questions.
1)How much needs to be done to them out of the box to run them.(not a full port job)
2)Are they truly stock replacement? (will headers & intakes, ect fit)
3)Are special valve covers are needed?
4)Will they work with a domed piston? (with 440 source stealth heads have 13.5:1 comp)
5)What other "real world" things should I be aware of?

Thanks,
Brian Dunnigan

Re: Questions for Indy SR head users [Re: '72CudaRacer] #1454001
06/16/13 09:18 PM
06/16/13 09:18 PM
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IL . usa
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cjs69mope Offline
mopar
cjs69mope  Offline
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IL . usa
Not a head to run out of box.
Need to have porting and valve job done at least a bowl port job.
Also dont run the plastic seals they come with get viton seals.

They have raised ports and need to have special headers inmost cars.

A drag carr might not if it has room from a tube chasis.

Special oil restictions need tobe fabbed so engine wont over oil the top
Edelbrock better out of box head for money.


1969 Dodge Charger 1969 Dodge Superbee
Re: Questions for Indy SR head users [Re: '72CudaRacer] #1454002
06/16/13 11:17 PM
06/16/13 11:17 PM
Joined: Nov 2003
Posts: 2,131
New Lenox IL
cudadon Offline
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Posts: 2,131
New Lenox IL
Quote:

I'm thinking of buying Indy SR heads and had some questions.
1)How much needs to be done to them out of the box to run them.(not a full port job)
2)Are they truly stock replacement? (will headers & intakes, ect fit)
3)Are special valve covers are needed?
4)Will they work with a domed piston? (with 440 source stealth heads have 13.5:1 comp)
5)What other "real world" things should I be aware of?

Thanks,
Brian Dunnigan




intakes will work

domes will work, I have Diamonds 13:1

they should be gone through valve job, springs, seals, etc by a good shop like Dwayne or Barton.

because of the raised ex ports they can make 50hp more than ezs I like mine Don

Re: Questions for Indy SR head users [Re: cudadon] #1454003
06/16/13 11:28 PM
06/16/13 11:28 PM
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Posts: 43,172
Bend,OR USA
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Cab_Burge Offline
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Bend,OR USA
I didn't have to switch headers(Hooker two inch fenderwells) on my Duster when I went from MCH CNC ported Eddy to a set of the SR that where M.W. port size when I bought them. The M.W. SR with the proper Indy manifold was quite a bit faster (.2+ a little on the ET)than the Eddy where, the Eddys flowed 310 at 28 inches and the SR flowed 340 CFM at 28 inches on the same bench If you decide to buy a set of the SR buy them with the M.W. ports and change the intake to match

Last edited by Cab_Burge; 06/16/13 11:30 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Questions for Indy SR head users [Re: '72CudaRacer] #1454004
06/17/13 12:18 AM
06/17/13 12:18 AM
Joined: Mar 2013
Posts: 197
Nor-Cal
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loaderpro Offline
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loaderpro  Offline
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Nor-Cal
My brother has them "out of the box" on a 3000 lb 74 duster 440 10-1 soup bowls w 570 roller cam, footbrake car that runs 10.40s on pump gas, no special oiling, the fenderwell headers did fit but had to put a reflective sheild on the MC as the headers were right on it.
The motor is now getting new 13.75-1 CP pistons with a dome...

Re: Questions for Indy SR head users [Re: loaderpro] #1454005
06/17/13 05:36 PM
06/17/13 05:36 PM
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Posts: 221
Missouri
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Challenger Offline
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Missouri
What is the combustion chamber size?

Re: Questions for Indy SR head users [Re: Challenger] #1454006
06/17/13 06:08 PM
06/17/13 06:08 PM
Joined: Aug 2003
Posts: 43,172
Bend,OR USA
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Cab_Burge Offline
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Quote:

What is the combustion chamber size?


76Cc just like the 440-1 come with I'm sure they can made smaller or bigger if you want them that way

Last edited by Cab_Burge; 06/18/13 12:10 AM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Questions for Indy SR head users [Re: Challenger] #1454007
06/18/13 12:07 AM
06/18/13 12:07 AM
Joined: Mar 2013
Posts: 197
Nor-Cal
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loaderpro Offline
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Nor-Cal
I just got done laying back the chambers to the diameter of the head gasket "O" ring and unshrouding the valves, When I get it CCd i'll post it on here.

7746574-pomona.jpg (129 downloads)
Re: Questions for Indy SR head users [Re: '72CudaRacer] #1454008
06/18/13 09:53 AM
06/18/13 09:53 AM
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
Dodgem Offline
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Dodgem  Offline
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Ontario, Canada
Brian I bought mine in 2002 the intake port is just closed off the last 1/2 to 3/4 inch to stock 440 window. (not much work to make it a max wedge window). You will need some touch up to the bowls and runners for sure. Mine measured 78 cc and we milled them down to 69.5 cc think it took about .060.

After calling indy I ordered a 440-2 intake 4150 and use a 2" spacer up to the 1050 Dommy supposed to give 10 to 15 more hp than a 440-3 dommy flange?? Then opened ports to max wedge did some porting the hard plastic valve seals suck.

your stock window intake will work as do the stock head rockers and valve covers you need to make up the pushrods they are cut to length.

You have to buy one of the valley plates (buy one with removable center) or if your using a stock window 440 intake end rail spacers they sell but do not include.

I ran my Hooker Super comps worked but fit was testy then later bought TTI step headers for the SR/440-1 and wow fit great!

My suggestion to all right off after doing it and having almost the full 440-1 kit price into it real quick is bite the bullet right off and get a 440-1 kit and you get the valve covers . better intake port and the rockers just what I went through.

I eventually welded in the pushrod pinch and bought the .800 offset rockers to make mine 440-1's

I have a set of indy 1.6 800 offset rockers and shafts for sale as I fell into some used harland sharps.

Oh test fit the heads some grinding will likely be needed for pushrods I had to do a bit with my crane golds at first seems to be common.

Springs the send on them worked fine with my .597/.620 263/271 ultradyne cam later i bought 1.6 crane .500 offset rockers and may have put them to spring bind worked but looked tight after removing heads for welding pushrod pinch and roller cam finding I actually needed .800 intake offset!

Hope this helps a bit brian go with a 440-1 kit just my opinion after going through it!


Last edited by Dodgem; 06/18/13 09:59 AM.
Re: Questions for Indy SR head users [Re: '72CudaRacer] #1454009
06/18/13 10:00 AM
06/18/13 10:00 AM
Joined: Jan 2003
Posts: 13,363
Marion, South Carolina [><]
an8sec70cuda Offline
I Live Here
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Posts: 13,363
Marion, South Carolina [><]
If you happen to have an intake w/ the heat crossover passage underneath the plenum, it won't fit b/c it'll hit the valley plate. The valley plate goes straight across unlike the factory valley pan gasket which droops down under the manifold to give clearance.

Example...a Holley street dominator manifold won't fit unless you mill down the crossover. I know 99% of the people running Indy heads don't use a manifold like this, but letting you know just in case.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Questions for Indy SR head users [Re: an8sec70cuda] #1454010
06/18/13 10:02 PM
06/18/13 10:02 PM
Joined: Aug 2009
Posts: 2,042
Mooresburg, Tn
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'72CudaRacer Offline OP
top fuel
'72CudaRacer  Offline OP
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Joined: Aug 2009
Posts: 2,042
Mooresburg, Tn
Thanks for the input guys. A lot of things to concider. The SR's may be too much for me to bite off right now, I'm in the middle of my season and looking to miss two points races this weekend as it is.
Barry raises a lot of good points, but at this time I'm not looking for that much in performance gains. I just want a good solid alum head.

Brian

Re: Questions for Indy SR head users [Re: '72CudaRacer] #1454011
06/19/13 09:31 AM
06/19/13 09:31 AM
Joined: Mar 2008
Posts: 5,746
Ontario, Canada
Dodgem Offline
master
Dodgem  Offline
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Ontario, Canada
Lots have bought the SR's and plopped them on my dad did but he did have to have a local engine shop blend the combustion chamber. mine were fine but a buddy found his one valve was not sealing new when he pored water in the check the intake volume.

Another friend just bought a whole 440-1 kit CNC'd and all from Indy said Russ treated him like S&%@!

Re: Questions for Indy SR head users [Re: Dodgem] #1454012
06/19/13 11:52 AM
06/19/13 11:52 AM
Joined: May 2003
Posts: 6,562
Downtown Roebuck Ont
Twostick Offline
Still wishing...
Twostick  Offline
Still wishing...

Joined: May 2003
Posts: 6,562
Downtown Roebuck Ont
Early MSD RB billet dist (the one with the GM window cap) won't fit without some grinding.

Kevin







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