Re: Aluminum heads - new vs used ?
[Re: lostdog]
#2671193
06/28/19 03:38 PM
06/28/19 03:38 PM
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Joined: Jan 2003
Posts: 20,752
A collage of whims
topside
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,752
A collage of whims
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1st thing I do is to look around the seller's area to try to get an idea of whether he's got his act together...
As far as the heads, look for stripped threads, sunken valves, evidence of porosity and anything that looks cobbed up.
Valve & spring seating surfaces will be hard to judge if valves & springs are installed.
Mis-matched valves, springs, etc would worry me.
You'll need to know if they've been surfaced or cut and by what amount, whether intake face was milled if much was cut off the deck.
Like any other heads, what springs, retainers, guides, and whether that works for your setup.
Not sure if anyone's making Aluminum heads without accessory provisions, not a problem with Eddys or Stealths or Indy EZ1s.
Some grinding at one end of a BB head that interfered with a distributor does happen depending on what they guy's combo was, but like all things, should be nicely done.
And I would hope for documentation, but some guys just don't keep the paperwork.
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Re: Aluminum heads - new vs used ?
[Re: topside]
#2671209
06/28/19 04:10 PM
06/28/19 04:10 PM
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Joined: Aug 2011
Posts: 361
mississippi
lostdog
OP
enthusiast
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OP
enthusiast
Joined: Aug 2011
Posts: 361
mississippi
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1st thing I do is to look around the seller's area to try to get an idea of whether he's got his act together...
As far as the heads, look for stripped threads, sunken valves, evidence of porosity and anything that looks cobbed up.
Valve & spring seating surfaces will be hard to judge if valves & springs are installed.
Mis-matched valves, springs, etc would worry me.
You'll need to know if they've been surfaced or cut and by what amount, whether intake face was milled if much was cut off the deck.
Like any other heads, what springs, retainers, guides, and whether that works for your setup.
Not sure if anyone's making Aluminum heads without accessory provisions, not a problem with Eddys or Stealths or Indy EZ1s.
Some grinding at one end of a BB head that interfered with a distributor does happen depending on what they guy's combo was, but like all things, should be nicely done.
And I would hope for documentation, but some guys just don't keep the paperwork. Like I was saying to Andy it’s gonna be Left to questions and pictures bc Mopar is uncommon around here but you have made a lot of good points - especially with accessory holes ! I never would have thought about that Thank you !
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Re: Aluminum heads - new vs used ?
[Re: lostdog]
#2671326
06/28/19 09:39 PM
06/28/19 09:39 PM
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Joined: Aug 2011
Posts: 2,853
Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,853
Pattison Texas
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save your money & buy the Trick flow heads, you can get them with the correct springs for your cam, depending on what HP level they have them in standard port TF 240, Max Wedge port TF 270.
Last edited by csk; 06/28/19 09:40 PM.
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5
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Re: Aluminum heads - new vs used ?
[Re: CSK]
#2675411
07/08/19 01:22 AM
07/08/19 01:22 AM
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Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,376
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If a guy's asking about used heads he doesn't have $1860 for a new set of the Trick Flow 240s. I would recommend calling Todd Marsh and seeing about a new set of Sidewinders, although those may have increased price, too since Trump started playing games with China.
The least expensive that work reliably would be 440Source Stealth heads. $1000 a pair while the price lasts. They need to be gone over and depending on what cam you want they may need springs or some replace retainers and locks, although I suspect that's overkill for a midrange cam.
A used pair for around $650 could be a really good deal.
Procomp I haven't looked at lately.
R.
Last edited by dogdays; 07/08/19 01:23 AM.
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Re: Aluminum heads - new vs used ?
[Re: lostdog]
#2675500
07/08/19 12:08 PM
07/08/19 12:08 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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The accessory holes was a good comment. Not sure which heads don't have them any more? My old B1-B/S (from the 1990's) heads did not have the accessory holes drilled.
Need to figure which heads will work with your combination first, then look at price difference between new and used, and what comes with each.
If the used heads come with rocker arms, that would add another price point, and something else to check over.
As mention, if the heads have been milled, it could mess with the intake manifold alignment.
If you plan to use a power adder, you may want upgraded valves and valve seats that handle higher cylinder temps better.
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