'72 LT-1 Expansion Tank?
11-17-2017, 07:04 PM
#1
Burning Brakes
Thread Starter
'72 LT-1 Expansion Tank?
I'm looking at a '72 LT-1 convertible (no A/C). The pictures the seller sent me show the correct "L" as the 5th character in the VIN, but pictures of the engine compartment show a radiator expansion tank. Should a '72 LT-1 have the expansion tank? I have a '71 LT-1 coupe and it doesn't have this (and I know the '71 shouldn't). I thought the same applied to the '72 but looking for confirmation. I'm wondering if it was added or if there's a possibility it is correct for the car. Thanks
11-17-2017, 07:09 PM
#2
Parts Sherpa
I'm looking at a '72 LT-1 convertible (no A/C). The pictures the seller sent me show the correct "L" as the 5th character in the VIN, but pictures of the engine compartment show a radiator expansion tank. Should a '72 LT-1 have the expansion tank? I have a '71 LT-1 coupe and it doesn't have this (and I know the '71 shouldn't). I thought the same applied to the '72 but looking for confirmation. I'm wondering if it was added or if there's a possibility it is correct for the car. Thanks
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pwsusi (11-17-2017)
11-17-2017, 08:04 PM
#3
Burning Brakes
1972 LT1 / no expansion tank.
1972 base model 350 with 4 speed used an expansion tank.
Not sure about big block.
1972 base model 350 with 4 speed used an expansion tank.
Not sure about big block.
Last edited by SS164; 11-17-2017 at 08:05 PM.
The following users liked this post:
pwsusi (11-17-2017)
11-17-2017, 11:38 PM
#4
Race Director
LT-1's used a copper radiator with attached tanks, so they did not need or use an expansion tank.
Base motor, manual trans, no air 68-72's used the 19" aluminum radiator, and came with the spun aluminum expansion tank. 350/350's, LT-1's, automatics small blocks, and air conditioned small blocks, all used the same 26" copper radiator, and none of them used an expansion tank.
69-72 big blocks with air conditioning, used a long, round, copper expansion tank. The only other big blocks to use an expansion tank were the 68-69 L-88's and 71 LS-6's, which used the same aluminum expansion tank, as the base motor small blocks.
Base motor, manual trans, no air 68-72's used the 19" aluminum radiator, and came with the spun aluminum expansion tank. 350/350's, LT-1's, automatics small blocks, and air conditioned small blocks, all used the same 26" copper radiator, and none of them used an expansion tank.
69-72 big blocks with air conditioning, used a long, round, copper expansion tank. The only other big blocks to use an expansion tank were the 68-69 L-88's and 71 LS-6's, which used the same aluminum expansion tank, as the base motor small blocks.
11-18-2017, 01:29 PM
#5
Racer
LT-1's used a copper radiator with attached tanks, so they did not need or use an expansion tank.
Base motor, manual trans, no air 68-72's used the 19" aluminum radiator, and came with the spun aluminum expansion tank. 350/350's, LT-1's, automatics small blocks, and air conditioned small blocks, all used the same 26" copper radiator, and none of them used an expansion tank.
69-72 big blocks with air conditioning, used a long, round, copper expansion tank. The only other big blocks to use an expansion tank were the 68-69 L-88's and 71 LS-6's, which used the same aluminum expansion tank, as the base motor small blocks.
Base motor, manual trans, no air 68-72's used the 19" aluminum radiator, and came with the spun aluminum expansion tank. 350/350's, LT-1's, automatics small blocks, and air conditioned small blocks, all used the same 26" copper radiator, and none of them used an expansion tank.
69-72 big blocks with air conditioning, used a long, round, copper expansion tank. The only other big blocks to use an expansion tank were the 68-69 L-88's and 71 LS-6's, which used the same aluminum expansion tank, as the base motor small blocks.
pic of 1972 454 with A/C using the long, round, painted black expansion tank
Last edited by MISTERZ06; 11-18-2017 at 01:32 PM.