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Re: fixin' up old heads
[Re: Crizila]
#929236
02/18/11 08:24 PM
02/18/11 08:24 PM
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Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing
master
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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Quote:
I know Indy sells "aerohead" reconditioned early iron heads for $499 Pr. Looks to have about the same work as the OP mentioned. Never seen them. Don't have a clue on the quality, etc. The $ seem to be in the ball park for what you get though.  [/quo
We can't count the number or Areoheads we have sold,not a single complaint and not a single issue has ever been brought to us. 
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Re: fixin' up old heads
[Re: Crizila]
#929237
02/18/11 10:03 PM
02/18/11 10:03 PM
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Joined: Oct 2004
Posts: 1,752
detroit area
moderncylinder
top fuel
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top fuel
Joined: Oct 2004
Posts: 1,752
detroit area
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the aerohead heads do not have hard exh seats,, the 906-452 casting version are 599,, though if you used a 452 and kept the 1.74 exh size the induction hardening would be fine. but if you wanted 906,, you would have to then put in seats and redo the entire valve job. they might have that as an option above the 599 price,, i dont know
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Re: fixin' up old heads
[Re: moderncylinder]
#929238
02/18/11 11:20 PM
02/18/11 11:20 PM
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Joined: Jan 2003
Posts: 14,513
So. Burlington, Vt.
fast68plymouth
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 14,513
So. Burlington, Vt.
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thanks to all who enjoyed the pics.
as for prices,
in addition to what Jeff and Brian posted, these heads also got magnafluxed, and had 2 intake seats installed.
i did them a couple months ago, and as i recall i also had to heli-coil something(VC bolt hole i think).
they were a tad under $1300.
the jist of the post was to point out that in many instances, it could be less expensive to use new heads than to refurbish old well used factory heads.
but.....as i said before......sometimes it is the right choice.
these heads are going on a factory 340 shaker hood car.
for less than $1100 you could have new EQ Magnum heads with 2.02 valves and some minor blending that will flow in the 260 range.
or for a grand you can have some 1.92 valve RHS heads.
but........they dont really look like J heads.
if you want to make power, and arent required to use correct heads.......its generally cheaper and easier to use new stuff.
if you really want the correct look......you kinda need the correct heads.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: fixin' up old heads
[Re: moderncylinder]
#929239
02/19/11 04:03 AM
02/19/11 04:03 AM
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Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing
master
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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Quote:
the aerohead heads do not have hard exh seats,, the 906-452 casting version are 599,, though if you used a 452 and kept the 1.74 exh size the induction hardening would be fine. but if you wanted 906,, you would have to then put in seats and redo the entire valve job. they might have that as an option above the 599 price,, i dont know
You can order them optioned in any configuration for extra cost upgrades.
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Re: fixin' up old heads
[Re: B G Racing]
#929240
02/19/11 11:20 AM
02/19/11 11:20 AM
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Joined: Oct 2004
Posts: 1,752
detroit area
moderncylinder
top fuel
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top fuel
Joined: Oct 2004
Posts: 1,752
detroit area
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from aerohead,, for direct comparison purposes to what dwayne, me, and brian had posted,, commented on,, though again,, this is dwaynes post....
599 "good" casting heads
50 upgrade to the valves that "we" (brian, me, dwayne) would use
80 upgrade to double springs
80 upgrade to hard exh seats
20 upgrade to 10 degree locks
20 upgrade to 10 degree retainers
50 upgrade to positive seal w/seals
250 upgrade to bowl port and int openings
total 1149 including castings
so not saying indy does bad work,, i dont think they do,, but im sure some on here would rather pay 100-150 more to have dwayne do that job than indy
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Re: fixin' up old heads
[Re: fast68plymouth]
#929243
02/19/11 02:08 PM
02/19/11 02:08 PM
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Joined: Dec 2006
Posts: 3,396
Pa
Hot 340
master
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master
Joined: Dec 2006
Posts: 3,396
Pa
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Quote:
or for a grand you can have some 1.92 valve RHS heads.
but........they dont really look like J heads.
if you want to make power, and arent required to use correct heads.......its generally cheaper and easier to use new stuff.
if you really want the correct look......you kinda need the correct heads.
Thats true Dwayne, Ive seen those RHS heads, they look like they belong on an Oldsmobile.
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Re: fixin' up old heads
[Re: B G Racing]
#929244
02/19/11 03:50 PM
02/19/11 03:50 PM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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I bought a set of AeroHead 360 heads. I asked for the hardened exhaust seats. They were #3769974 heads, with 1.60/2.02" stainless valves. The valve seats were not blended into the port much, and the bowl/ports were untouched so I doubt they flowed any better than with the stock valves. No issues with the heads other than the deck-to-quench area was about 0.010" different between the heads. For my "quench" dome KB232 pistons I had to have one head milled 0.040", and the other 0.050", then polish the chambers to equalize the cc's. I also opened up the bowls and did some porting on the heads, also cut the seats for dual valve springs, Opened up the pushrod holes for 1.6:1 rocker arms, and enlarged the head bolt hole where oil comes up to oil the rocker gear because I was using head studs. Here is a pic, sorry about the bad cellphone camera quality and surface rust in the ported head ports (cleaned them out with soap and water.) anyhow, left - after some porting work, right - as delivered from Aerohead.
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Re: fixin' up old heads
[Re: Dean_Kuzluzski]
#929246
02/19/11 04:49 PM
02/19/11 04:49 PM
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Joined: Jan 2003
Posts: 5,486
SoCal
Brian Hafliger
master
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master
Joined: Jan 2003
Posts: 5,486
SoCal
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Quote:
Quote:
Last set of 906 heads I had gone thru cost me about $1300. And when I was done I still had the crappy open combustion chamber design that the factory engineers stuck us with. I think that was my very last set of iron heads! The next set of heads were some Edelbrock RPM's that I sent to Dwayne.
The above mentioned rationale is the exact reason I do 516's over any open chamber BB head. I'd rather have an efficient quench motor that something that detonates itself to a premature death. I pick up swapmeet deals on the take-off parts from those Edelbrocks, do my own bowl/template porting and all said and done...........wrap up about $600 in a set of heads that I know are done right. Standard valve size, steel retainers and all. But it'll still make a fun footbrake bracket car.
When time comes to throw down for an aftermarket set of heads, currently the Indy EZ's look like the only deal for me. The revised/new intake port, taller valves and some porting will create all the HP a production block will reliably handle from what I understand.
Anything inbetween those heads are a stepping stone.
This is a great thread and no disrespect to any of the machinists out there. But if you supply your own parts and porting it changes the total sum quickly.
Yes, you may be able to source parts for less (but I see this alot and the parts are mismatched for what in intended) and doing the porting yourself will save $$$.
But...if you were to start with a newer head, all new parts and do the porting yourself (and make improvements instead of hurting flow/power) think of how much more power you'll have and with new heads vs. older stuff.
I just did a 380HP 360 with older heads and mild port 2.02 valves etc...they flowed 233 cfm. For a couple hundred dollars more he could have went with our RHS heads and made 400+. That is a great cost vs. HP gained.
However, he wasn't bothered by that at all, and was very happy so...it's true every thing has it's place and old iron is not completely dead!!
Brian Hafliger
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Re: fixin' up old heads
[Re: jamesc]
#929248
02/19/11 09:13 PM
02/19/11 09:13 PM
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Joined: Jan 2003
Posts: 2,129
Vermont
TrWaters
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,129
Vermont
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"it's true every thing has it's place and old iron is not completely dead!!" Isnt that the truth 
TR Waters
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Re: fixin' up old heads
[Re: BradH]
#929251
02/20/11 07:00 PM
02/20/11 07:00 PM
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Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
racealittle
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
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Quote:
IIRC, 440Jim said the AeroHead heads he got for his 'Cuda some years ago were better described as a "parts kit" than "ready to assemble" because of the (lack of) quality of Indy's machine work. Unless that's changed, there's no way you could compare their heads, even w/ all the above mentioned upgrades, to what Dwayne, Jeff or Brian would deliver for the same, or not much more, cost. Lots of people seem to have a hard time grasping this.
I know one guy who thinks the aerohead product is better than a cnc eddy head. There are all kinds of people out there.
The work I've seen done by most of the 'moparts' cylinder heads porters, blows away any work that I have had done in my home town.
Too many cars, too many parts, too little coin, too little space to work in, too little time left to make it all happen!
Update: down to one ride, still too many parts, a little more jingle in the pocket, gaining space, and it's going to happen this year!
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