Thanks.  I will go with copper radiator and plastic shroud.  I have a lot of A.I.R. parts, so I should be able to fill in the missing stuff without breaking the bank.

Larry

If you remember, even the mighty L88s and ZL1s had the AIR system, so you can pretty well bet the widdle(by comparison) LT1s had it. The only exceptions were the export vehicles.

One other thing I can add on the different LT1 suffix codes. If my memory serves, a couple of the suffix coded engines used different oil pans. I can't remember exactly which one(s) it is, but I can certainly try to go back thru my lit. and find it. Imma thinkin it was the CTU coded LT1, but don't quote me on that...I will see can I find the info/part #s, and post it later...

[QUOTE=Adams' Apple]If you remember, even the mighty L88s and ZL1s had the AIR system, so you can pretty well bet the widdle(by comparison) LT1s had it. The only exceptions were the export vehicles.

One other thing I can add on the different LT1 suffix codes. If my memory serves, a couple of the suffix coded engines used different oil pans. I can't remember exactly which one(s) it is, but I can certainly try to go back thru my lit. and find it. Imma thinkin it was the CTU coded LT1, but don't quote me on that...I will see can I find the info/part #s, and post it later...[/QUOTE]

Joel,

Just curious as to how the assembly line would know the car was for export and what manifold would have been used on these cars?

The build sheet would have the info...it would also contain the part numbers for whatever assemblies needed. There were also "hints" written in grease pencil on certain areas of the car, stating the original config.
For instance, on '74s meant for export, there wasn't a decal on the overflow bottle that says "Warning: Hot Coolant" as the domestic cars had.
They also would not have any of the seat-belt/starter interlock components if it was meant for export.
All of this would show on the build sheet.
As far as exhaust manifold on AIR/non-AIR cars, they usually just plugged the holes for the tubes with pipe-plugs...

[QUOTE=Adams' Apple]The build sheet would have the info...it would also contain the part numbers for whatever assemblies needed. There were also "hints" written in grease pencil on certain areas of the car, stating the original config.
For instance, on '74s meant for export, there wasn't a decal on the overflow bottle that says "Warning: Hot Coolant" as the domestic cars had.
They also would not have any of the seat-belt/starter interlock components if it was meant for export.
All of this would show on the build sheet.
As far as exhaust manifold on AIR/non-AIR cars, they usually just plugged the holes for the tubes with pipe-plugs...[/QUOTE]

Thanks Joel. You're still "da man"  but if the engines were assembled beforehand, how would the engine assembly line know the car was for export so they could delete the AIR and plug the holes?

The AIR systems were installed on the vehicle assy line. If it wasn't needed for the car, the holes were plugged, or the manifolds would be swapped, depending on availability.
Also, engines were built according to orders. If the order came thru for an LT1 export with the M22, it would be assembled, and stamped as such. The engines also had paper suffix tags on them, so the assy line workers could easily identify a particular code engine. If the vehicle the engine was intended for was required to have the AIR system, it would have the appropriate manifolds installed at engine assy. If no non-AIR manifolds were available, the regular manifolds would be installed, and the holes plugged. The assy line would not stop for something like that...they would use whatever was on hand, if the engineer(s) deemed the parts would function and fit correctly.
There have also been documented cases where a particular engine wasn't available, so a different engine would be pulled from the line, and re-configured for the application. The suffix/assy date codes would be ground off, and the corrected codes stamped...

[QUOTE=Adams' Apple]The AIR systems were installed on the vehicle assy line. If it wasn't needed for the car, the holes were plugged, or the manifolds would be swapped, depending on availability.
Also, engines were built according to orders. If the order came thru for an LT1 export with the M22, it would be assembled, and stamped as such. The engines also had paper suffix tags on them, so the assy line workers could easily identify a particular code engine. If the vehicle the engine was intended for was required to have the AIR system, it would have the appropriate manifolds installed at engine assy. If no non-AIR manifolds were available, the regular manifolds would be installed, and the holes plugged. The assy line would not stop for something like that...they would use whatever was on hand, if the engineer(s) deemed the parts would function and fit correctly.
There have also been documented cases where a particular engine wasn't available, so a different engine would be pulled from the line, and re-configured for the application. The suffix/assy date codes would be ground off, and the corrected codes stamped...[/QUOTE]

Yes, strange things do come from the assembly lines. Back in the mid 80's a friend of mine ordered a new Chevy Suburban or Blazer, don't remember which. It was delivered to our local dealer with a Chevrolet emblem in the grill but the tailgate plainly said GMC.  

Back in the late '70s, a co-worker bought a new Mustang.  The interior door panels had Mercury Capri emblems on them.

Larry by clicking An American Classic you will have one of the best resources that I know of for LT1 information. Al Wagner is a former GM engineer who helped in the design of the Stingray and many of the other Corvette and GM automobiles.
He now restores these beautiful cars and is a NCRS judge. He had when we visited 11 of the LT1 cars in his possesion.

Al is a great guy and will be more than happy to help you. On the web page you will find both an email address and a phone number. Give him a call and tell him that you are from the C3VR Registry and that I asked that you contact him....

                                                            Tux...