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Old 12-15-2008, 08:14 AM
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GM heads 10110810 V.S. 14101081

Hi,

I currently own a 1987 Chevy Z-28 with the 305 motor and it has 134,000K on it and it's time to do some freshening on the motor, heads look like a black swamp! My vehicle hass been suddenly loosing oil pressure and I know that it is time to do some work on it. So far I've had all the smog crap taken off by yours truly and I just recently had a non-emissions Quad custom built for it, I also coupled that with the MSD streetfighter HEI. I'm gonna put a Weiand 8024 intake on it and need to replace my heads,they look terrible inside. But like most people right now funds are scarce, so please dont tell me to get a 350 or a boutique head, I know that they are better. My ral question here is due I rebuild my 14101081 heads or do I go with what I've found out here for $150.00 a set of GM 1011081 heads that have been completely redond and have a three angle valve job and the specs are 1.94 & 1.60. They also have a new spring setup from Comp thats able to handle up to 500 cam. I believe that if the heads were both done up the same way that the 081's would be better, but it's gonna cost way more than the $150.00 that I can pick these others up for. Any comments would be appreciated and Thanks!!

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Old 12-15-2008, 08:35 AM
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Ya get what you pay for. In this case lowered compression ratio and sever limited top end power potential.
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Old 12-15-2008, 09:08 AM
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I forgot to add the 10110810 heads have a 58cc, which os the stock cc of my 14101081 heads.
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Old 12-15-2008, 10:44 AM
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Quote:
Originally Posted by 80's rule!
I forgot to add the 10110810 heads have a 58cc, which os the stock cc of my 14101081 heads.
Not quite...
10110810...91-up...350..........Gen. 1, 65cc chambers
Prolly be better off having your redone and install some new stock valve springs
trust me , your heads are just as good as those others,but you know you have a good set that works and you will know exactly what has been done to em. Hell its not that hard to redo a set yourself, take em off, clean em up and buy a spring compressor and just take em apart, clean everything and keep track of what goes where and just relap the valves, and install new seals,and springs. be a nice project.
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Old 12-15-2008, 11:15 AM
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My stock heads are 1.84 & 1.50 with 58cc. I cant even buy the Comp spring kit for mine for under 150.00. Plus they have a three angle valve job and have all new seals and guides,etc. So the only big difference is the larger ports on these?? But I wish I could just redo mine, just need to fix problem sooner than later. It's my ride to work and home. I've also found a 1967 327 block complete to put in my car and I want a set of heads that can be transfered over to that motor til I can afford to get the Trick Flow 23's. So I'm kinda trying to fix one problem and still be able to use the new heads later. Also 67 block has forged crank and flat top forged pistons.

Last edited by 80's rule!; 12-15-2008 at 11:47 AM.
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Old 12-15-2008, 12:44 PM
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$150 for heads
$100 for gaskets

Right there is a running 350. That's why everyone recommends them. Not because they're better, but because they're better AND cheaper.
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Old 12-15-2008, 01:06 PM
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Yeah it's running straight to the parts store and the machine shop. 100.00 for gaskets?? Were you just thawed out last night?? Try 19.95 from gm performace, and as low as 20.00 from fel-pro.
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Old 12-15-2008, 01:50 PM
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Quote:
Originally Posted by Jim Rockford
Not quite...
10110810...91-up...350..........Gen. 1, 65cc chambers
Prolly be better off having your redone and install some new stock valve springs
trust me , your heads are just as good as those others,but you know you have a good set that works and you will know exactly what has been done to em. Hell its not that hard to redo a set yourself, take em off, clean em up and buy a spring compressor and just take em apart, clean everything and keep track of what goes where and just relap the valves, and install new seals,and springs. be a nice project.
Great advice.. I'd just like to add to get them magnafluxed isn't all that expensive and good insurance.
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Old 12-15-2008, 01:55 PM
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Quote:
Originally Posted by Jsup
Great advice.. I'd just like to add to get them magnafluxed isn't all that expensive and good insurance.
That is excellent advice, I did not think of that. Thanks!!
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Old 12-16-2008, 12:50 AM
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Quote:
Originally Posted by 80's rule!
Yeah it's running straight to the parts store and the machine shop. 100.00 for gaskets?? Were you just thawed out last night?? Try 19.95 from gm performace, and as low as 20.00 from fel-pro.
How about head gaskets, intake gaskets, exhaust gaskets, thermostat gasket, thread sealer for the head bolts....

A head swap isn't just head gaskets.
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Old 12-16-2008, 05:08 AM
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baaa that **** is cheap, biggest expense is the head gaskets what a thermostat gasket like a buck,intake gaskets are 12 bucks or so, ad hell thread sealant is not that much.
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Old 12-16-2008, 09:41 AM
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Quote:
Originally Posted by curtis73
How about head gaskets, intake gaskets, exhaust gaskets, thermostat gasket, thread sealer for the head bolts....

A head swap isn't just head gaskets.
I'm sure that you were just trying to help and I am just a little about this whole situation, so sorry about being a bit pissy. Right now I think sometimes I forget that I'm not the only one hurting financially right now. Happy Holidays.
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Old 12-16-2008, 02:01 PM
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Quote:
Originally Posted by 80's rule!
I'm sure that you were just trying to help and I am just a little about this whole situation, so sorry about being a bit pissy. Right now I think sometimes I forget that I'm not the only one hurting financially right now. Happy Holidays.

ehhh after some more reserch, those heads you want to buy and crappy swirl port heads off a LO5 tbi truck you damn sure don't want those on a tpi engine...

89-93 HEAD ID # 14102191, 10110810
Notes: TBI, 1 piece rear main seal, roller lifters, center bolt valve covers

Last edited by Jim Rockford; 12-16-2008 at 02:12 PM.
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Old 12-16-2008, 02:44 PM
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Quote:
Originally Posted by 80's rule!
I'm sure that you were just trying to help and I am just a little about this whole situation, so sorry about being a bit pissy. Right now I think sometimes I forget that I'm not the only one hurting financially right now. Happy Holidays.
No worries, I wasn't bad-mouthing the 305, I was just genuinely trying to save you some money. $250 buys a good running 350 these days, sometimes less. I have a couple that I got for free and one that I got for $50.

You're talking about valve jobs and magnafluxing. That alone can be over $250. Until you add gaskets, the purchase price of the heads and all the other assorted things, you might be much more money into it (and still have a 134k rotating assembly) when you're done. You also described loss of oil pressure and sludge. New heads won't help that. Just trying to help.
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Old 12-17-2008, 07:59 AM
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Quote:
Originally Posted by curtis73
No worries, I wasn't bad-mouthing the 305, I was just genuinely trying to save you some money. $250 buys a good running 350 these days, sometimes less. I have a couple that I got for free and one that I got for $50.

You're talking about valve jobs and magnafluxing. That alone can be over $250. Until you add gaskets, the purchase price of the heads and all the other assorted things, you might be much more money into it (and still have a 134k rotating assembly) when you're done. You also described loss of oil pressure and sludge. New heads won't help that. Just trying to help.
I guess for now I'm just trying to get my car back on the road cause my wife and I are down to 1 car now and making arrangments to get back and forth to work is a ***** now. A 305 is in no way my goal for this car but unfortunately it's my daily driver. I found a virgin 1967 327 block thats all in one piece with a forged crank and flat top forged pistons. Supposedly has only 43k on the motor. I checked it out and it looks pretty good for being 41 years old. Still looks like original orange paint on it. Also has the real cool thin harmonic balancer on it. I'm just wondering if I can get by with a freshen up on it. Hate to bore it if I dont have to. Also came out of a Corvette, which by the casting numbers appears to have been possible. Not sure how I can tell though if it was out of a Vette. I question it cause it has 38804520 heads that come with it. Not bolted on though. I believe that they are power pack heads, which I know are crapola. But the casting numbers on the block indicate it was only made in 1967 on either a truck,chevelle,camaro or Corvette. Let me know if you have any knowledge of my 327 block I'm about to buy.
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