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Is it possible I have LT-1 heads?

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Old Nov 19, 2001 | 06:34 PM
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Is it possible I have LT-1 heads?

My builder when he reworked my 406 put a set of heads on my motor.........said they were LT-1 heads. No, I haven't pulled the valve cover to check the casting number (tho I should just to check) but wondering if it is possible. Does the reverse cooling thing matter on the heads?

------------------
'79K5 Blazer with 406TPI
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Old Nov 19, 2001 | 06:40 PM
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Nope, not possible. There are lots of differences in the LT1 heads, the reverse cooling being the biggest. It might be possible to modifiy the hell out of the head and get it to work but I've never heard of anyone doign it, it would be way more work then it would be worth.
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Old Nov 19, 2001 | 06:43 PM
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That is what I thought..........hmm, now I'm going to have to pull the valve cover off and see what it really is. No biggie, he only charged me $200 for them all freshened up..........first said they were Vortecs, which I promptly questioned him on, and he then said LT-1.

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'79K5 Blazer with 406TPI
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Old Nov 19, 2001 | 07:38 PM
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He may be talking about the heads out of the 2nd gen (early 70s) LT1 camaro. It was a 350, so the heads would work with your motor.

Sparks a flyin'
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Old Nov 20, 2001 | 01:10 PM
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Car: 89 IrocZ
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Ya, I think Sparks has the answer.
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Old Nov 20, 2001 | 02:19 PM
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They might be LT-1 heads but they won't be LT1 heads

------------------
-Tas
'89 Formula WS-6

305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
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Old Nov 20, 2001 | 02:31 PM
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<font face="Verdana, Arial" size="2">Originally posted by sparks383iroc:
He may be talking about the heads out of the 2nd gen (early 70s) LT1 camaro. It was a 350, so the heads would work with your motor.

Sparks a flyin'
</font>
yup...thats what they probably are

------------------
*89 Trans Am GTA
*Moderator at www.transamgta.com

To hell with the GM vs Ford war. We must unite, as brothers to fight the plague that is overtaking the world...RICE

Tony
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Old Nov 20, 2001 | 04:24 PM
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<font face="Verdana, Arial" size="2">Originally posted by cfabe:
Nope, not possible. There are lots of differences in the LT1 heads, the reverse cooling being the biggest. It might be possible to modifiy the hell out of the head and get it to work but I've never heard of anyone doign it, it would be way more work then it would be worth.</font>
DO NOT, I REPEAT DO NOT tell people it's not possible especially since you never heard of it being done. It IS possible to put LT1 heads OR intake on a standard SBC. Several people have done these things so think before you post. Thank you.



------------------
86 Camaro Sport
LT1 Induction
383 Speed-O-Motive Crate Engine, Raptor 700R4 Tranmission, Trick Flow Twisted Wedge G2's, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Hooker Cat-back, Serpentine Belt Setup, Dual IROC Fans, Jamex springs, 16" IROC Rims, 36mm/24mm Sway Bars, Global West Steering Brace. Hotchkis Rear LCA's,Panhard Bar and SFC's.
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Old Nov 20, 2001 | 04:33 PM
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<font face="Verdana, Arial" size="2">originaly posted by cfabe:
Nope, not possible. There are lots of differences in the LT1 heads, the reverse cooling being the biggest. It might be possible to modifiy the hell out of the head and get it to work but I've never heard of anyone doign it, it would be way more work then it would be worth.
</font>
The article on putting Gen 2 (LT1, LT4, L99) heads on a Gen 1 engine is on my website. Its not worth the effort unless you do it yourself IMO.

check it out: http://members.tripod.com/GRK_Taz/tech/1.html

------------------
-Tas
'89 Formula WS-6

305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options



[This message has been edited by Tas (edited November 20, 2001).]
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Old Nov 20, 2001 | 05:46 PM
  #10  
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<font face="Verdana, Arial" size="2">Originally posted by Tas:
The article on putting Gen 2 (LT1, LT4, L99) heads on a Gen 1 engine is on my website. Its not worth the effort unless you do it yourself IMO.

check it out: http://members.tripod.com/GRK_Taz/tech/1.html

</font>
Wow, I never read that before. Very good reading. I wonder if CHP would do my conversion write up and make me famous? It would be cool to have them publish it.



------------------
86 Camaro Sport
LT1 Induction
383 Speed-O-Motive Crate Engine, Raptor 700R4 Tranmission, Trick Flow Twisted Wedge G2's, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Hooker Cat-back, Serpentine Belt Setup, Dual IROC Fans, Jamex springs, 16" IROC Rims, 36mm/24mm Sway Bars, Global West Steering Brace. Hotchkis Rear LCA's,Panhard Bar and SFC's.
My Camaro Project
Moderator at SE ThirdGen
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Old Nov 20, 2001 | 06:26 PM
  #11  
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Why don't you email it to 'em John?? Never hurts to try.
bsa
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Old Nov 22, 2001 | 11:09 PM
  #12  
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I stand corrected, jumped the gun on that one. Thats an interesting article on the head swap. I agree its probably only worth the effort if you've got the resources and know how to do all the work yourself.

Also, I'm planning on doing the LT1 intake conversion this winter. It sounds like a great idea, and I'd send an e-mail or letter to CHP for sure and see if they're interested. Maybe car craft too, they seem to be more into fuel injection then CHP.
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Old Nov 23, 2001 | 06:01 AM
  #13  
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Axle/Gears: 8.8 rear, 4.56 gears, 4:1 transfer
<font face="Verdana, Arial" size="2">Originally posted by irocbsa:
Why don't you email it to 'em John?? Never hurts to try.
bsa
</font>
I did e-mail CHP, we'll see what happens.



------------------
86 Camaro Sport
LT1 Induction
383 Speed-O-Motive Crate Engine, Raptor 700R4 Tranmission, Trick Flow Twisted Wedge G2's, 58mm Accel TB, 3.73 Auburn Pro, SLP Cold Air Induction and Headers, Hooker Cat-back, Serpentine Belt Setup, Dual IROC Fans, Jamex springs, 16" IROC Rims, 36mm/24mm Sway Bars, Global West Steering Brace. Hotchkis Rear LCA's,Panhard Bar and SFC's.
My Camaro Project
Moderator at SE ThirdGen
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Old Nov 23, 2001 | 08:32 PM
  #14  
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I believe Lingenfelter tried it out, and if I remember correctly he said that the power increase wasn't worth the cost of the conversion. I'll have to double check that though.

Rob
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