1970 454 with ac dip stick question

[Kenneth B.]

I need to know the length of the dipstick on a 1970 454 with AC. I know it is supposed to have a black top like the small blocks & there is a long & short tube & both were used on the 454 so were there 2 different lengths when the long & short tubes are used. Guide doesn't say what the lengths are.

[Joe L.]

Re: 1970 454 with ac dip stick question

I need to know the length of the dipstick on a 1970 454 with AC. I know it is supposed to have a black top like the small blocks & there is a long & short tube & both were used on the 454 so were there 2 different lengths when the long & short tubes are used. Guide doesn't say what the lengths are.

Kenneth------

I don't think that there was a difference between C-60-equipped LS-5 and LS-5 not equipped with C-60. Some folks think so, I do not. However, there was a difference between early LS-5 and later. Early cars used a dipstick which was 17-13/32" from seat to "full" mark and 19" from seat to "add" mark. Later 1970 used a dipstick that was 22-11/16" from seat to "full" mark and 23-1/2" from seat to "add" mark.

I don't have the length of the early tube. However, the later tube had a developed length of 22-5/8" end-to-end.

[Kenneth B.]

Re: 1970 454 with ac dip stick question

Kenneth------

I don't think that there was a difference between C-60-equipped LS-5 and LS-5 not equipped with C-60. Some folks think so, I do not. However, there was a difference between early LS-5 and later. Early cars used a dipstick which was 17-13/32" from seat to "full" mark and 19" from seat to "add" mark. Later 1970 used a dipstick that was 22-11/16" from seat to "full" mark and 23-1/2" from seat to "add" mark.

I don't have the length of the early tube. However, the later tube had a developed length of 22-5/8" end-to-end.

THANKS JOE I didn't think so either. I have the early kind but the black plug is missing. My 70 454 with AC length is as you described. My VIN # is 7601

[Kenn S.]

Re: 1970 454 with ac dip stick question

Mine was built on Feb 21, 1970, is an LS-5 with C60, and missing the black plug. Probalby pretty common. However, Long Island Corvette sells the plugs (red or black) if you hadn't found a suitable replacement. Here's the link:

http://www.parts123.com/parts123/yb.dll?parta~dyndetail~Z5Z5Z50000370a~Z5Z5Z5AAEYR~P14.00~~~~S47Z0WEO2518419224118o~Z5Z5Z5~Z5Z5Z50000370a

I didn't measure it but can...

[Kenneth B.]

Re: 1970 454 with ac dip stick question

Mine was built on Feb 21, 1970, is an LS-5 with C60, and missing the black plug. Probalby pretty common. However, Long Island Corvette sells the plugs (red or black) if you hadn't found a suitable replacement. Here's the link:

http://www.parts123.com/parts123/yb.dll?parta~dyndetail~Z5Z5Z50000370a~Z5Z5Z5AAEYR~P14.00~~~~S47Z0WEO2518419224118o~Z5Z5Z5~Z5Z5Z50000370a

I didn't measure it but can...

THANKS I am sure mine is correct so I will buy the plug. Makes me wonder if some didn't have one. If it's not too much trouble could you measure yours & tell me what wording is on it? KEN

[Kenn S.]

Re: 1970 454 with ac dip stick question

3 1970 cars...nice. One of my favorite years.

I imagine they did come with a plug, but after 40 years those puppies likely just fell out. Not much holding them in.

The overall length is 24 7/8", from the tip to the...boss? The knob that fits into the tube to secure it.

From the tip it reads: ADD | | FULL, with the line near ADD being 13/16" from the tip and the line near FULL being 1 5/8" from the tip. There is no cross-hatching or holes (later sticks often have these features).

There is a slight twist starting at about 8" and running to 11", from the tip.

Hope it's helpful.

[Joe L.]

Re: 1970 454 with ac dip stick question

3 1970 cars...nice. One of my favorite years.

I imagine they did come with a plug, but after 40 years those puppies likely just fell out. Not much holding them in.

The overall length is 24 7/8", from the tip to the...boss? The knob that fits into the tube to secure it.

From the tip it reads: ADD | | FULL, with the line near ADD being 13/16" from the tip and the line near FULL being 1 5/8" from the tip. There is no cross-hatching or holes (later sticks often have these features).

There is a slight twist starting at about 8" and running to 11", from the tip.

Hope it's helpful.

Kenn------


Based on the dimensions you mentioned, this dipstick sounds like the 2nd design 1970 Corvette big block dipstick. This dipstick has a red plug.

[Kenn S.]

Re: 1970 454 with ac dip stick question

Thanks, Joe. Since my car is #4429, I'd imagine Ken's would also be second design.

And thanks for the info...red tip. I'd assumed black.

[Kenneth B.]

Re: 1970 454 with ac dip stick question

THANKS KENN Believe mine is like yours. Wording is for sure. I will measure to see if it is the same length. My VIN is 7601 so you are right about being the same as yours. Black tip Red tip maybe I should get one of each.