youtube car, is this 68 supposed to have that expansion tank?

[Brandon T.]

http://www.youtube.com/watch?v=MEJAkX5EtcQ

you can see an overflow tank just curious because I don't think 68 390hp cars had expansion tanks

[Michael W.]

Re: youtube car, is this 68 supposed to have that expansion tank?

2 radiator caps?

[Brandon T.]

Re: youtube car, is this 68 supposed to have that expansion tank?

so you think it isn't supposed to have the expansion tank too huh.

[Michael W.]

Re: youtube car, is this 68 supposed to have that expansion tank?

No, I didn't say that. Is the car supposed to have an aluminum rad with no cap?

What does your judging manual say?

[Brandon T.]

Re: youtube car, is this 68 supposed to have that expansion tank?

I was thinking 68 390hp cars didn't have expansion tanks..I asked the guy if he added it he said no it's original to the car..

weird.

I get so tired of seeing cars people want 50k plus for and they have all kind of bubba things done to them.

Makes me want to buy new because 95% of these old vettes out there have had redneck owners who ruined them in a lot of way and it's us that us that has to sort them out again! gets on my nerves..

[Jack C.]

Re: youtube car, is this 68 supposed to have that expansion tank?

68 390 hsp and L88 had expansion tanks, 400 and 435 hsp didn't.

[Brandon T.]

Re: youtube car, is this 68 supposed to have that expansion tank?

68 390 hsp and L88 had expansion tanks, 400 and 435 hsp didn't.

And you're 100% without a doubt sure on that?

I had in my mind 68 390hp cars didn't but they did in 69..

whew o well guess I was wrong.

[Michael W.]

Re: youtube car, is this 68 supposed to have that expansion tank?

Ahhh, you may want to pick a different hobby if you believe your duty in life is to right other's perceived wrongs. That's not what NCRS is about either.

[Mike E.]

Re: youtube car, is this 68 supposed to have that expansion tank?

That's why the 4-star/bowtie cars have the value that they have---they have not been bubba-ized. And that's why the Top flight and Duntov cars have the value they have--because all the corrective surgery has been done.

[Brandon T.]

Re: youtube car, is this 68 supposed to have that expansion tank?

Anyone else? still not 100% sure it's supposed to be on this car. Not that the guys above are wrong just wanted to hear what more people think on the subject so I know for 100% sure.

[John C.]

Re: youtube car, is this 68 supposed to have that expansion tank?

In 68 the only BB cars to have an aluminum expansion tank was the L88. All other had a copper radiator with a direct fill and integral expansion tank. This is what the JG states.

You can look at a 5 star bowtie car at http://www.sinorprestigeauto.com/

Remember 68's had cooling issues when they first came out, so people/dealers may have tried things to solve this on their own.

John

[Mike E.]

Re: youtube car, is this 68 supposed to have that expansion tank?

Generally, the rule of thumb is this:
1) aluminum radiator: aluminum expansion tank
2) copper radiator; no expansion tank

(2) doesn't hold true with 69-72 bb with AC cars (brass expansion tank)

[Joe L.]

Re: youtube car, is this 68 supposed to have that expansion tank?

In 68 the only BB cars to have an aluminum expansion tank was the L88. All other had a copper radiator with a direct fill and integral expansion tank. This is what the JG states.

John

John-----


That's correct. For 1968, the ONLY big block that used an external supply tank was the L-88. No others did.

For 1969-72, things changed. For these years, ALL big blocks used an external supply tank. No exceptions.