'71 LT-1 'Vette

[68 Vert]

I'm trying to find misc. part/casting #'s for these cars; block casting, heads, carb/smog etc. I've done some web searching and didn't come up with much.

The car I'm looking at is a; 4sp(M21), special order axle, pw, AM/FM, PS and PB. It does have a tank sticker.

Any help is greatly appreciated. http://www.yenko.net/ubbthreads/images/graemlins/biggthumpup.gif

Thanks,
Mike

[GaryH]

Here are some numbers off of mine. The exhaust manifolds and distributor are not original but I am pretty sure the rest is:

Engine ID code VO825CGZ
Block casting 3970010
Block casting date H200
Cyl head casting 3973487
Cyl head casting date LH 190 RH 200
Ex. Mnfld Casting # LH 3822765 L10 RH 3932461 L15
Intake Mnfld Casting 3959594
Dist 1112038 0H4
Holley 3989021 4150 082 R4801A
Rear Axle 411 Code AC Posi
Trans M21 3925661 C11510 Date P1K20
Rad 3018802
Heater Blower Motor 4939300 5044753 Date 2-0-2
Horns 9000245 Date 0B3
Vacuum Tank 3966704

[68 Vert]

Wow, that was quick, thanks Gary. http://www.yenko.net/ubbthreads/images/graemlins/biggthumpup.gif Did the LT-1's have unitized ignition in '71? Flex fan or clutch fan? The car I'm looking at looks like it should have a smog pump, is this correct?

Again, thanks for any help with the questions.

Mike

[LS6 RAT]

Mike,

The '71 LT-1's came with a magnetic pulse transistorized ignition system, this included a special TI coil, TI distributor, TI amplifier and special wire harness.
It does use a 5 blade fan with either a eaton or schwitzer fan clutch.
All LT-1's for '70, '71 & '72 came with A.I.R. emissions system, which included bracketry, air pump, diverter valve, manifold pipes & assorted hoses.

[68 Vert]

[ QUOTE ]

Mike,

The '71 LT-1's came with a magnetic pulse transistorized ignition system, this included a special TI coil, TI distributor, TI amplifier and special wire harness.
It does use a 5 blade fan with either a eaton or schwitzer fan clutch.
All LT-1's for '70, '71 & '72 came with A.I.R. emissions system, which included bracketry, air pump, diverter valve, manifold pipes & assorted hoses.

[/ QUOTE ]

Thanks for the info, the air pump is missing but everything else looks to be there. I have to check on the TI and see if it still all there.
The tank sticker has all of the options and paint code on the car except it shows a black interior, the body tag shows tan leather which the car has...sticker looks legit. Could the tank sticker be wrong?

Sorry for the questions...I'm just trying to get educated in the 'Vette world. http://www.yenko.net/ubbthreads/images/graemlins/smile.gif

Thanks,

Mike

[GaryH]

Can you post a pic of the tank sticker?

[68 Vert]

Here's a pic of the tank sticker...

[LS6 RAT]

Mike,

I see from your Corvette Order Copy sheet that you have a fairly early car. Unfortunately, your sheet is the same format as '68 thru '70 which doesn't include the partial VIN derivative. Later '71 Corvette Order Copy sheets can prove that the sheet is indeed the one for that particular car. The document could be for another car, there's just no way to prove it, one way or the other.
I would look closely at the trim tag and see if it appears to have been changed.

[PeteLeathersac]

Do the hand written numbers on the build sheets sometimes match up w/ a job number that appeared on parts of the chassis or tub that showed as the car moved down the line but may be hidden now by interior or body parts?.

Best of luck w/ the car!.
http://www.yenko.net/ubbthreads/images/graemlins/beers.gif
~ Pete

[68 Vert]

[ QUOTE ]

Mike,

I see from your Corvette Order Copy sheet that you have a fairly early car. Unfortunately, your sheet is the same format as '68 thru '70 which doesn't include the partial VIN derivative. Later '71 Corvette Order Copy sheets can prove that the sheet is indeed the one for that particular car. The document could be for another car, there's just no way to prove it, one way or the other.
I would look closely at the trim tag and see if it appears to have been changed.

[/ QUOTE ]

I agree, the Order Copy sheet might be from another car...I'll try and post a pic of the trim tag. Funny thing, the car is built exactly like the OC sheet except for the interior color. http://www.yenko.net/ubbthreads/images/graemlins/dunno.gif

Thanks,

Mike

[1railman]

Are last three numbers on vin 337 or 837? Mostly that will hold true. Also, I have seen some tank sheets with changes. I have seen early '69 cars where car was built with no side pipes when they were ordered as such and also tire changes presumably to keep the assembly line moving.

[68 Vert]

The last 3 numbers are 454...

Mike

[GaryH]

My tank sheet has a 498 on it and the last three of the VIN is 998. I can see how a 4 and a 9 can get mixed up. I also have a pic of another tank sheet and the three numbers on it do match the last three of the VIN for the car it was removed from. Has anyone documented a tank sheet that has non matching numbers written on it?

[1railman]

No mix up, that is correct for your car.