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What heads are these?

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Old Dec 29, 2013 | 08:29 AM
  #1  
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What heads are these?

I've searched google and all I can find is 86 350, doesn't even say truck next to it. 1.94 1.6 valves I think but I'm not sure what they came off of?
Attached Thumbnails What heads are these?-image-3760697476.jpg  
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Old Dec 29, 2013 | 09:15 AM
  #2  
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Re: What heads are these?

seem to be out of any 1986 gm 350 car

Last edited by Barlow8869; Dec 29, 2013 at 09:21 AM.
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Old Dec 29, 2013 | 09:57 AM
  #3  
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Originally Posted by Barlow8869
seem to be out of any 1986 gm 350 car
That's what I was thinking...the block says 3970010
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Old Dec 29, 2013 | 10:58 AM
  #4  
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From: Mattoon Il.
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Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
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Re: What heads are these?

3970010 Engine Blocks Small Block V8 1969 302, 4 bolt, Camaro Z28
3970010 Engine Blocks Small Block V8 1969-1980 350, 2 bolt or 4 bolt

guess you will gave to check the bore size to know for sure if it is a 4 bolt, if it is a 2 bolt, then you know

Last edited by Barlow8869; Dec 29, 2013 at 11:35 AM.
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Old Dec 29, 2013 | 10:58 AM
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Re: What heads are these?

What heads are these?
Basically, random junk. Not worth worrying about what they are beyond that.

The block is the single most common 4" bore casting from about 69 to 80. Came in absolutely every imaginable 350 application from 160 HP Impala 2-bbl to Vettes to trucks to ... everything else. A few 327s and 302s as well. No need to "check" the bore; it's 4", plus whatever overbore.
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Old Dec 29, 2013 | 11:12 AM
  #6  
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From: Mattoon Il.
Car: 1989 IROC-Z / T-Top -1987 GTA
Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
Axle/Gears: 2.73 L.S. - ???
Re: What heads are these?

Originally Posted by sofakingdom
Basically, random junk. Not worth worrying about what they are beyond that.

The block is the single most common 4" bore casting from about 69 to 80. Came in absolutely every imaginable 350 application from 160 HP Impala 2-bbl to Vettes to trucks to ... everything else. A few 327s and 302s as well. No need to "check" the bore; it's 4", plus whatever overbore.
hey, way to talk down to people asking for some info ... you dont always have to be a dick when you answer ... calling someone elses stuff junk really is not called for ... just because someone does not have the top of the line item, does not make you some sort of "king" ... try to have a little respect
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Old Dec 29, 2013 | 11:44 AM
  #7  
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From: Mattoon Il.
Car: 1989 IROC-Z / T-Top -1987 GTA
Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
Axle/Gears: 2.73 L.S. - ???
Re: What heads are these?

sofa was right about the bore, it would be the same in either 4", it was the short (3") stroke that gave it 302 cid
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Old Dec 29, 2013 | 01:08 PM
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Originally Posted by sofakingdom
Basically, random junk. Not worth worrying about what they are beyond that. The block is the single most common 4" bore casting from about 69 to 80. Came in absolutely every imaginable 350 application from 160 HP Impala 2-bbl to Vettes to trucks to ... everything else. A few 327s and 302s as well. No need to "check" the bore; it's 4", plus whatever overbore.
It may be junk lol, but it's running and it gets this car from point A to point B, definitely not the ideal motor that I want in there, but who has that when it comes to buying a used third gen? It's definitely a 350, just was hoping I got lucky and it came from a vette instead of a truck lol, it's definitely better than a 305! Which everyone recommends that you get rid of right away and swap in a 350! Just was hoping someone could help me identify
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Old Dec 29, 2013 | 01:37 PM
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Re: What heads are these?

I don't understand...

Guy asks what heads they are. I tell him. What do you suppose I should have said instead? So his heads are some kind of junk stock crap, and I'm willing to tell him THE TRUTH straight-up without any candy-coating; that makes me "king"? What are you anyway, some kind of an "alternate winner" all through school, and the idea that some things are not as good as some others, and some aren't any good AT ALL, bothers you somehow?

It's a 350, that's almost certain. Doesn't make the slightest bit of difference where the block came from, because as "almost" certain as it being a 350, it's equally "almost" certain it's been rebuilt. And once you take the guts out of a block, it becomes exactly equal to all other such blocks, in terms of "lucky" and all that; the sheet metal (or fiberglass) that GM originally wrapped it in, becomes altogether irrelevant. You can take the mightiest "LT-1" block and stick a 442 cast crank in it, some Badger or similar "rebuilder" pistons, a 929 cam, and a pair of (or ... just, 2) random junk heads on it, and voilà! instant 70s 160 HP smogger turd. Or, take a block from the lowliest 74 G10 van 350 2-bbl, and put 14:1 domes in it, a pair of 220cc aftermarket heads, a solid roller cam, and get 650 HP out of it. In NO case does the provenance of the block have any effect whatsoever on the finished product. Its condition, the quality control in its machine work, and such as that, might; but "Vette" or "van" or "Nova" or whatever, no.

Yes it's definitely better than having a 305. And of course, "running" and reliable transportation, is all good too. But also, definitely not as good as it could be. The first step in getting to that "goal" is, identifying what you've got. So what you've got is, a common 350 block (good as far as that goes), garbage heads (you know that they're NOT a foundation for a "competitive" engine) that are among the first things that need to go in the trash in your quest to improve your engine, no idea what pistons whoever rebuilt it put into it yet, no idea what cam is in it, and so forth. You know for sure though what at least SOME of your upgrade paths are.
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Old Dec 29, 2013 | 02:22 PM
  #10  
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Originally Posted by sofakingdom
I don't understand... Guy asks what heads they are. I tell him. What do you suppose I should have said instead? So his heads are some kind of junk stock crap, and I'm willing to tell him THE TRUTH straight-up without any candy-coating; that makes me "king"? What are you anyway, some kind of an "alternate winner" all through school, and the idea that some things are not as good as some others, and some aren't any good AT ALL, bothers you somehow? It's a 350, that's almost certain. Doesn't make the slightest bit of difference where the block came from, because as "almost" certain as it being a 350, it's equally "almost" certain it's been rebuilt. And once you take the guts out of a block, it becomes exactly equal to all other such blocks, in terms of "lucky" and all that; the sheet metal (or fiberglass) that GM originally wrapped it in, becomes altogether irrelevant. You can take the mightiest "LT-1" block and stick a 442 cast crank in it, some Badger or similar "rebuilder" pistons, a 929 cam, and a pair of (or ... just, 2) random junk heads on it, and voilà! instant 70s 160 HP smogger turd. Or, take a block from the lowliest 74 G10 van 350 2-bbl, and put 14:1 domes in it, a pair of 220cc aftermarket heads, a solid roller cam, and get 650 HP out of it. In NO case does the provenance of the block have any effect whatsoever on the finished product. Its condition, the quality control in its machine work, and such as that, might; but "Vette" or "van" or "Nova" or whatever, no. Yes it's definitely better than having a 305. And of course, "running" and reliable transportation, is all good too. But also, definitely not as good as it could be. The first step in getting to that "goal" is, identifying what you've got. So what you've got is, a common 350 block (good as far as that goes), garbage heads (you know that they're NOT a foundation for a "competitive" engine) that are among the first things that need to go in the trash in your quest to improve your engine, no idea what pistons whoever rebuilt it put into it yet, no idea what cam is in it, and so forth. You know for sure though what at least SOME of your upgrade paths are.
It doesn't bother me at all. I know the heads are not anything I want to start a foundation on. Just curious as to what I have. That is all. I have intentions on keeping the heads/intake etc. I don't to rebuild what I have, I've decided to get this motor in the best running/reliable condition and to source a brand new block, rotating assembly, heads, cam, intake one piece at a time. Not going to just throw name brand parts together and hope for the best. I'd rather check a hundred times and do it once than the other way around.
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Old Dec 29, 2013 | 04:30 PM
  #11  
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Transmission: 700R4 _ 700R4
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Re: What heads are these?

Originally Posted by sofakingdom
I don't understand...

Guy asks what heads they are. I tell him. What do you suppose I should have said instead? So his heads are some kind of junk stock crap, and I'm willing to tell him THE TRUTH straight-up without any candy-coating; that makes me "king"? What are you anyway, some kind of an "alternate winner" all through school, and the idea that some things are not as good as some others, and some aren't any good AT ALL, bothers you somehow?
no, what you said was the heads were "junk" that tells nothing about what heads they are, and not being a set of heads for a high hp build does not make them junk ... when you called them junk, he had not said he was building a high hp motor, just asked what they were from ... and your comment "What are you anyway, some kind of an "alternate winner" all through school" just proves the point about how much of a dick you are ... you may know about cars, but that makes you no less of a dick, and no better than anyone else ... and by the way, when i was in school, we had winners and losers in our sport, just so you know ... and that did not make us all dicks
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Old Dec 29, 2013 | 04:59 PM
  #12  
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Re: What heads are these?

Originally Posted by Mrbanados
I've searched google and all I can find is 86 350, doesn't even say truck next to it. 1.94 1.6 valves I think but I'm not sure what they came off of?

14034808 350 80-86 1.84/1.50 76cc
14034810 350 80-86
14034811 350 80-86
14039121 305 81-86
14039122 305 81-86
14071114 350 80-86
14075381 350 80-86
14079261 350 82-85
14085844 350 80-86
14089119 350 80-86

http://www.chevymania.com/

unfortunetly,......well,....i wont use the "J" word.
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Old Dec 29, 2013 | 05:26 PM
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Re: What heads are these?

And Barlow, the fact that it's not your post and you just have to get your panties all in a wad and come in here trying to bust on somebody that's none of your business, just demonstrates that whole "alternate winner" mentality that goes in general with the Internet's liberal manufactured outrage machine.

I frankly don't give a rip what you think; I'm gonna tell THE TRUTH even if it hurts whiners like you.

Mr B, glad I could help. I'm sorry this other .... individual ... had to come in here and pollute your thread. I'll apologize FOR him, since he doesn't seem like the type that will man up and realize the error of his ways and apologize for himself. Those "alternate winner" types never do, it's always "somebody else's" fault anyway whenever they screw up and make a fool out of themselves. (mine in this case I'm sure)

Meanwhile, the heads look like ... C'mon Barlow, tell us HONESTLY, what do they look like to YOU?
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Old Dec 29, 2013 | 05:31 PM
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Re: What heads are these?

Now...

Mr B, right, you can do all the external sort of things; exhaust, drive train, paint job & interior, etc.; and just let the motor be, if it's reliable and gets you around. No need to just jump in and start spending money on something that's working, regardless of the excellence (or lack thereof) of the castings.

Best way these days to come up with the best possible core, is to watch the boneyards for a 96-2000 truck motor, and do your buildup on that. Even if you don't want those specific heads (Vortec), you can always sell em. Meanwhile, that's a good way to get a roller block, with all the roller stuff still in it, and it'll have MODERN quality control instead of the death-of-the-US-auto-industry sloppiness of the 70s. I'd do that, a LONG time before I'd buy a whole "crate" motor, myself.
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Old Dec 29, 2013 | 05:31 PM
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Re: What heads are these?

.

Last edited by sofakingdom; Dec 29, 2013 at 05:32 PM. Reason: weird
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Old Dec 29, 2013 | 06:16 PM
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Originally Posted by sofakingdom
Now... Mr B, right, you can do all the external sort of things; exhaust, drive train, paint job & interior, etc.; and just let the motor be, if it's reliable and gets you around. No need to just jump in and start spending money on something that's working, regardless of the excellence (or lack thereof) of the castings. Best way these days to come up with the best possible core, is to watch the boneyards for a 96-2000 truck motor, and do your buildup on that. Even if you don't want those specific heads (Vortec), you can always sell em. Meanwhile, that's a good way to get a roller block, with all the roller stuff still in it, and it'll have MODERN quality control instead of the death-of-the-US-auto-industry sloppiness of the 70s. I'd do that, a LONG time before I'd buy a whole "crate" motor, myself.
So far the only money being spent is getting the car reliable and all the factory electrical things working, getting the weatherstripping, air dam etc back to functioning the way it was supposed to. But...in the future I would love to build a separate block with everything that I want. I'm definitely not building on this block at all. But...before I EVEN start to do that, the transmission, rear end, brakes, wheels and tires, suspension all need to support what I want to throw at it.

First off, I'm going to start with the tires, suspension and rear.

I would like to take the car to a dyno to see where I'm at now to figure out a power goal of where I want to be.

I know all about the vortec motors! I had a 98 silverado and I had two sets of vortec heads last year! All that went to the junkyard :/ but I'll be on the lookout when I actually go to source a block to build.
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Old Dec 29, 2013 | 06:19 PM
  #17  
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Transmission: 700R4 _ 700R4
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Re: What heads are these?

Originally Posted by sofakingdom
And Barlow, the fact that it's not your post and you just have to get your panties all in a wad and come in here trying to bust on somebody that's none of your business, just demonstrates that whole "alternate winner" mentality that goes in general with the Internet's liberal manufactured outrage machine.

I frankly don't give a rip what you think; I'm gonna tell THE TRUTH even if it hurts whiners like you.

Mr B, glad I could help. I'm sorry this other .... individual ... had to come in here and pollute your thread. I'll apologize FOR him, since he doesn't seem like the type that will man up and realize the error of his ways and apologize for himself. Those "alternate winner" types never do, it's always "somebody else's" fault anyway whenever they screw up and make a fool out of themselves. (mine in this case I'm sure)

Meanwhile, the heads look like ... C'mon Barlow, tell us HONESTLY, what do they look like to YOU?
well, first off do not ever apologize for me ... second, it makes no difference who the op is on me calling you out on being a dick, third i didn't have an "error" of my ways (i actually put in some effort to answer the question he asked) , forth i am not at all a part of the "Internet's liberal manufactured outrage machine", and fifth as i can not see the heads, i can not say what they look like, but if they are working heads (even low grade heads) they are not junk, they are just not top of the line even for factory heads and could most likely be made to make reasonable hp in a street car if someone didn't have the funds to buy better ones right at that time
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Old Dec 29, 2013 | 07:10 PM
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Re: What heads are these?

Barlow!

Way to contribute helpfully to the OP's thirst for knowledge.

I'm still sorry ON YOUR BEHALF since you're still not willing to apologize in person after acting a jerk, and will continue to apologize FOR YOU, until such time as you become a man with a spine and realize that it's the right thing to do. Oh well. You can go right on ahead with your "righteous indignation" on somebody else's behalf pretending to be "offended" even though YOU'RE NOT, and be as much of the "alternate winner" that you are displaying yourself to be, as much as you like. Until you apologize both TO ME and TO THE PERSON WHOSE POST YOU FORNICATED, I really don't have anything more to offer you and therefore will just ignore you, but I'll be happy to help out the gentleman who wants to know what his engine parts are.
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Old Dec 29, 2013 | 07:32 PM
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From: Mattoon Il.
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Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
Axle/Gears: 2.73 L.S. - ???
Re: What heads are these?

Originally Posted by sofakingdom
Barlow!

Way to contribute helpfully to the OP's thirst for knowledge.

I'm still sorry ON YOUR BEHALF since you're still not willing to apologize in person after acting a jerk, and will continue to apologize FOR YOU, until such time as you become a man with a spine and realize that it's the right thing to do. Oh well. You can go right on ahead with your "righteous indignation" on somebody else's behalf pretending to be "offended" even though YOU'RE NOT, and be as much of the "alternate winner" that you are displaying yourself to be, as much as you like. Until you apologize both TO ME and TO THE PERSON WHOSE POST YOU FORNICATED, I really don't have anything more to offer you and therefore will just ignore you, but I'll be happy to help out the gentleman who wants to know what his engine parts are.
you are so funny ... there is no way i would ever apologize to you for anything ... and i never said one time i was offended, what i said is that you are a dick, and you just keep proving me right, and for that, i thank you ... also, calling you out for being a dick is in no way FORNICATING a post, it was just asking you to be a bit more respectful, but as you have proven, that is something beyond your grasp of vast knowledge, oh great king ... lmao
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Old Dec 29, 2013 | 07:36 PM
  #20  
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Re: What heads are these?

My oh my quite costic this evening.
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Old Dec 29, 2013 | 07:37 PM
  #21  
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Re: What heads are these?

Well Mr B, that sounds like a pretty decent plan; work on things that need it, leave alone what's working well enough, until its time arrives.

Good luck wit it!!
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Old Dec 29, 2013 | 08:03 PM
  #22  
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Re: What heads are these?

one fact is they're small valve, open chamber/low compression heads. they were made on june, 2, 1985. nothing fancy about them. run em til it blows up or you get something better, or sell them, but i would'nt put any money into them.

wether or not somebody is a "dick" for calling them "junk", is outside the scope of my knowledge level at this point and time of reality, reconsiderations of the original question that was at hand by the original poster can only be answered by the one that asked the question, then received a possible answer that was straightforward and to the point, yet challenged about its integrity and usefulness to the here & now & future possibilities of being useful or of the possible rafifications of being such "junk", or blunt truthfulness to in all actuality be helpful in a non-evasive nature.
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Old Dec 29, 2013 | 08:11 PM
  #23  
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Originally Posted by redneckjoe
one fact is they're small valve, open chamber/low compression heads. they were made on june, 2, 1985. nothing fancy about them. run em til it blows up or you get something better, or sell them, but i would'nt put any money into them. wether or not somebody is a "dick" for calling them "junk", is outside the scope of my knowledge level at this point and time of reality, reconsiderations of the original question that was at hand by the original poster can only be answered by the one that asked the question, then received a possible answer that was straightforward and to the point, yet challenged about its integrity and usefulness to the here & now & future possibilities of being useful or of the possible rafifications of being such "junk", or blunt truthfulness to in all actuality be helpful in a non-evasive nature.
Wow how did you find that info out?
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Old Dec 29, 2013 | 08:23 PM
  #24  
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Re: What heads are these?

how did you find that info out?
Casting numbers:

They were cast (or, the one was, at least) on the 02 day of the Jth (10th, October) month of a year ending in 5.

June would have started out w F.
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Old Dec 29, 2013 | 08:29 PM
  #25  
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Re: What heads are these?

from the casting date in your picture, "j025" i actually made a mistake, it wasnt june.
J=october
02= day of month
5= year, 85

got info here;
http://www.crankshaftcoalition.com/w...n#Casting_date
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Old Dec 29, 2013 | 08:30 PM
  #26  
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Re: What heads are these?

ahhhh,...Sofa caught that, lol.
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Old Dec 29, 2013 | 08:33 PM
  #27  
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Re: What heads are these?

Yup, no biggie...

With a few of those, the year can be a bit ambiguous. For example, we know that the particular head casting, was only available in the early-mid 80s; so 85 is beyond doubt. However, if your block happened to have a code ending in 9 or 0, then it could have been cast in either 69 or 79, or 70 or 80. In that case the stamping code could be used to resolve the uncertainty. Not that it really matters too much though, beyond historical curiosity; we're not doing a "matching numbers" build here, like the guys that try to find the right block cast in the right date range for their car's mfr date, and the right heads also made in the right time frame.
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Old Dec 29, 2013 | 08:55 PM
  #28  
redneckjoe's Avatar
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Joined: Sep 2011
Posts: 2,080
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From: Spring Hill, Fl.
Car: 87 iroc-z
Engine: 454
Transmission: th350
Axle/Gears: 3.73
Re: What heads are these?

well, you never know when the date code or numbers matching inspector might show up?

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