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post #1 of 57 (permalink) Old 08-12-2012, 07:36 PM Thread Starter
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Cheap Aftermarket Heads

I've been looking through all the aftermarket 460 heads for a long time, and there really is a lot out there. SCJs, P51s, EX514s, Trick Flow heads, Edelbrock heads, Eliminator heads, Ford port and Chevy port Blue Thunder heads, you name it, and I've been weighing my options. But they're all so seemingly ridiculously expensive... Why is there almost nothing below $2,000 a pair?? That just seems like way too much money for a set of heads, especially considering that the stock heads were terrific except for the crap exhaust ports. It seems like the high port PME exhaust plates are a good option, but they're not cheap either when all the machining and furnace brazing comes in. It seems like they're so overpriced that it would almost be cheaper to engineer and cast a brand new head. Is there anything I'm overlooking, and are the PME plates any good? Sorry for my whining, and thanks for the help!
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post #2 of 57 (permalink) Old 08-12-2012, 07:38 PM
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The SCJ's are 1800.00

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post #3 of 57 (permalink) Old 08-12-2012, 07:41 PM Thread Starter
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I know, I was just rounding.
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post #4 of 57 (permalink) Old 08-12-2012, 07:54 PM
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Sounds like your a Pro Comp type of guy to me.
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post #5 of 57 (permalink) Old 08-12-2012, 07:57 PM
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buy used

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post #6 of 57 (permalink) Old 08-12-2012, 07:57 PM
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Cool

Given the amount of time to properly port and the cost to outfit the iron castings with larger valves, springs and a proper rebuild...

The cost of the aluminum heads is not that out of line. The SCJ's are butt kicking castings and are bar none the best bang for the buck in aluminum with the TFS streets a damned close second.

At RHP reasonably well ported (340+ / 200) set of iron heads with large S/S valves, manganese bronze guides, p/c seals, rocker studs and guideplates are $1,695 exchange. Max effort class rule stuff runs over $2K.

Budget iron can run $1195.00 for an easy 500 + hp but any more needs more valve area...




Procomp heads are a less expensive option in aluminum however when outfitted with quality parts and a good valve job they are still not "cheap"

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post #7 of 57 (permalink) Old 08-12-2012, 08:41 PM
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Quote:
Originally Posted by BOSS 429 View Post
buy used
^^^^^^ this.

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post #8 of 57 (permalink) Old 08-12-2012, 08:43 PM
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Quote:
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Given the amount of time to properly port and the cost to outfit the iron castings with larger valves, springs and a proper rebuild...

The cost of the aluminum heads is not that out of line. The SCJ's are butt kicking castings and are bar none the best bang for the buck in aluminum with the TFS streets a damned close second.

At RHP reasonably well ported (340+ / 200) set of iron heads with large S/S valves, manganese bronze guides, p/c seals, rocker studs and guideplates are $1,695 exchange. Max effort class rule stuff runs over $2K.

Budget iron can run $1195.00 for an easy 500 + hp but any more needs more valve area...




Procomp heads are a less expensive option in aluminum however when outfitted with quality parts and a good valve job they are still not "cheap"
Depending on your goals A460s are probly the best bang for the buck.

When to much is just right
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post #9 of 57 (permalink) Old 08-12-2012, 08:44 PM Thread Starter
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Thanks for the quick responses, guys. I understand where everyone's coming from, but I just can't spend $1,800+ that easily. At the same time, an otherwise great build won't get anywhere without aluminum heads, it seems. I do like the look of those Pro Comp heads. Maybe I could build on them to start, then when I get a little extra money, have them ported. Anyway, thanks again, everyone!
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post #10 of 57 (permalink) Old 08-12-2012, 08:51 PM
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I would just as soon have a st of bowl blended Doves as a set of the pro comps.

Run the Dove,s until the time you have the money to buy a set of the good heads.

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post #11 of 57 (permalink) Old 08-12-2012, 09:17 PM
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That's true, a lot can be done with D0VES I'm not a fan of Pro Comps. They may have their place, but so does a colonoscopy.

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post #12 of 57 (permalink) Old 08-12-2012, 09:57 PM
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Cool

Quote:
Originally Posted by jamesandrewjohnson View Post
Thanks for the quick responses, guys. I understand where everyone's coming from, but I just can't spend $1,800+ that easily. At the same time, an otherwise great build won't get anywhere without aluminum heads, it seems. I do like the look of those Pro Comp heads. Maybe I could build on them to start, then when I get a little extra money, have them ported. Anyway, thanks again, everyone!
Defining your goals and hp requirements would help us a great deal in offering direction.




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post #13 of 57 (permalink) Old 08-12-2012, 10:43 PM
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Pro Comps are a good choice only IF you are not interested in advancing the horsepower output much.
They are aluminum so, they look better and will weigh less than cast iron OEM heads however, only make slightly more power than a decent pair of "big valve" regular OEM castings.

From what I read from your posts, it seems you have thought of extending the AMOUNT and range of horsepower so, these Pro Comps are NOT going to be a good option for you.

They are NOT a racing type head...!

EDIT: In your situation, I would use the Aluminum SCJ's from FRPP.

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Last edited by rmcomprandy; 08-13-2012 at 09:56 AM.
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post #14 of 57 (permalink) Old 08-12-2012, 11:06 PM
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Quote:
Originally Posted by FourEyed Freak View Post
Depending on your goals A460s are probly the best bang for the buck.
X2
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post #15 of 57 (permalink) Old 08-13-2012, 12:23 AM Thread Starter
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Again everyone, thanks for all the input! It's very helpful. So I won't go with Pro Comps if they are such a bad head. As much as they cost P51s seem to be a relatively good deal compared to the other stock block heads. The A460s are awesome, but don't you need like a 4.5" minimum bore to use them?? If not I'd love to be running something with those flow numbers and 2.30"/1.88" valves, but they won't actually work on a stock block with a 4.44" bore, will they?
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