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Restoring a 72 LT-1

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Old May 5, 2010 | 10:05 PM
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Default Restoring a 72 LT-1

Need some help. I'm restoring me 72 LT-1 and there was a hydraulic cam in the car when I bought it and my question is should I put it back to original with a mechanical cam or leave the hydraulic cam in it and which one would make it worth more? If it was a hydraulic cam, which one would you suggest I use? I have looked at 2 Comp Cams one is a 12-673-4 Nostalgia Plus and the other is a 12-107-3 Factory Muscle Comp Cam, which one would you use?

I'm also looking for some one who can replate my cadiumn parts. Does anybody now someone?
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Old May 5, 2010 | 10:54 PM
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Hey there 08Indy, its great that you are taking on a 72 LT-1 restoration, I'm very pleased to hear of one more being brought back from the dead. when one thinks of the LT-1 engine you automaticaly think of the high winding solid lifter engine with a redline of 6500 rpms.
If it were me, I'd put back in a solid lifter cam, but its your'e car so do what you feel is the right thing for you !.
What are your plans for the car? will you go back to stock or do some modifications? I'll get a list of a few books that really helped me out some that I can recall off the top of my head are the Assembly instruction manual (AIM) the book by M.F. Dobbins " Fact Book of the 1968-1972 Stingray". Consider joining the NCRS for $35 bucks a year there is a huge wealth of information to be had, however, most if not all of your questions will be answered right here on this forum.
Sorry can't help you with the cad plating, but I'm sure someone will chime in with some info. Good luck with the car and we would really like to see some PICTURES
Regards
Roy
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Old May 6, 2010 | 04:46 AM
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Melling engine parts or Crane cams have a exact copy of an LT-1 cam. The Comp cams is a little bigger than a true LT-1 camshaft but, not many people know this but, the 370HP LT-1 was tested with the Z/28 30/30 cam and not the smaller intake duration LT-1 cam when it was given its HP rating. Myself, I went with some Ultradyne lobes I like that compare well to the original LT-1 profiles (30/30 cams are a little soft at lower RPMs.)

You should get a EDM lifter with oil holes in them to help with cam wear and only use a good oil like Joe Gibbs or Brad Penn oil.

In my book, it isn't a true LT-1 unless you can hear the lifters clacking away (I will allow that on a A/C equipeed 72 LT-1 it is a MAJOR B**CH to adjust valves.)

I like the 243@0.050int/247@0.050exh Ultradyne (F-9int/F-18ehx lobes) on a 111degree lobe seperation.

THERE one of my major speed secrets is given away

Link to Bulllet cams: http://bulletcams.com/index.shtml
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Old May 6, 2010 | 08:38 PM
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Hi Indy,
72 LT-!.... NICE.
There are many people who do the various plating finishes some of us covet.
One of the best known is Steve Gregori 559-875-0290
Regards,
Alan
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Old May 6, 2010 | 09:39 PM
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Originally Posted by Solid LT1
Melling engine parts or Crane cams have a exact copy of an LT-1 cam. The Comp cams is a little bigger than a true LT-1 camshaft but, not many people know this but, the 370HP LT-1 was tested with the Z/28 30/30 cam and not the smaller intake duration LT-1 cam when it was given its HP rating. Myself, I went with some Ultradyne lobes I like that compare well to the original LT-1 profiles (30/30 cams are a little soft at lower RPMs.)

You should get a EDM lifter with oil holes in them to help with cam wear and only use a good oil like Joe Gibbs or Brad Penn oil.

In my book, it isn't a true LT-1 unless you can hear the lifters clacking away (I will allow that on a A/C equipeed 72 LT-1 it is a MAJOR B**CH to adjust valves.)
I like the 243@0.050int/247@0.050exh Ultradyne (F-9int/F-18ehx lobes) on a 111degree lobe seperation.

THERE one of my major speed secrets is given away

Link to Bulllet cams: http://bulletcams.com/index.shtml
Put that solid lifter cam back in there! Thats one of the primary reasons I got another LT-1. No mistaking that sound at idle.

Please explain what the problem is with adjusting the lash on a '72 LT-1 with A/C. I'm about to do mine. The A/C unit doesn't appear to be blocking it that much. (Yes I know the valve covers are on opposite sides! I haven't touched this engine compartment yet. Wait until you see it when its done)

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