1970 LT-1 Dipstick

[Sam G.]

I am looking for a dipstick for a 1970 LT-1 that reads ADD o o FULL USE GM 6041-M QUALITY MS OIL

Dipstick is 21-1/8" to the end of the handle and has a black plug. Anyone have one for sale? If so, please PM with pictures and price.

[Terry L.]

Re: 1970 LT-1 Dipstick

Sam,

I think I have one but I won't be home until Saturday or Sunday. Send me your email and I'll send over a picture.

[David L.]

Re: 1970 LT-1 Dipstick

There were two versions of the 69-71 dipstick (GM # 3951576) that were stamped "USE GM 6041-M-QUALITY MS OIL". I have one NOS and one used from a 1970 Chevelle w/307 Tonowanda engine but neither is for sale. Both dipsticks have the handle with the flattened end and the stamped letter "E" (rotated 90 degrees) on the stick part. I know that theses dipsticks are correct for my 1970 Camaro SS350 (Tonowanda engine).

Were the Corvette engines made in Flint only issued the dipstick with the green button or were both types issued? It is my understanding that the 1970 Camaro Z28 models (Flint engines) were issued both types.

Dave

[Joe L.]

Re: 1970 LT-1 Dipstick

There were two versions of the 69-71 dipstick (GM # 3951576) that were stamped "USE GM 6041-M-QUALITY MS OIL". I have one NOS and one used from a 1970 Chevelle w/307 Tonowanda engine but neither is for sale. Both dipsticks have the handle with the flattened end and the stamped letter "E" (rotated 90 degrees) on the stick part. I know that theses dipsticks are correct for my 1970 Camaro SS350 (Tonowanda engine).

Were the Corvette engines made in Flint only issued the dipstick with the green button or were both types issued? It is my understanding that the 1970 Camaro Z28 models (Flint engines) were issued both types.

Dave

Dave------


Corvette LT-1's did not use these dipsticks. The Corvette small block oil pans (1963-74) were different than those used on any other Chevrolet and the dipsticks were, thus, different, too.

[David L.]

Re: 1970 LT-1 Dipstick

Dave------


Corvette LT-1's did not use these dipsticks. The Corvette small block oil pans (1963-74) were different than those used on any other Chevrolet and the dipsticks were, thus, different, too.

Joe,

My mistake. The 63-74 Corvettes used a 3739830 dipstick which had a black plastic tip at the end of the loop on the handle. As far as I know the 69-71 Corvette dipsticks had the "USE GM 6041 M QUALITY MS OIL" stamped on them.

Dave

[Joe L.]

Re: 1970 LT-1 Dipstick

Joe,

My mistake. The 63-74 Corvettes used a 3739830 dipstick which had a black plastic tip at the end of the loop on the handle. As far as I know the 69-71 Corvette dipsticks had the "USE GM 6041 M QUALITY MS OIL" stamped on them.

Dave

Dave------

Yes, I believe that's what was embossed on original 69-71 small block dipsticks.

By the way, 1975-79 Corvettes did use the dipstick you mentioned (3951576). That's because these model years used the same oil pan as most other Chevrolet models, including Camaro, full size Chevrolet and others. For 1980 GM went back to the same configuration as used for 63-74 except with a right hand dipstick. This basic configuration remained the same right through 1996 except for the change to one piece rear seal in 1986. These 1980-96 oil pans were Corvette-only just as the 63-74 were.

[Sam G.]

Re: 1970 LT-1 Dipstick

Dave------

Yes, I believe that's what was embossed on original 69-71 small block dipsticks.

By the way, 1975-79 Corvettes did use the dipstick you mentioned (3951576). That's because these model years used the same oil pan as most other Chevrolet models, including Camaro, full size Chevrolet and others. For 1980 GM went back to the same configuration as used for 63-74 except with a right hand dipstick. This basic configuration remained the same right through 1996 except for the change to one piece rear seal in 1986. These 1980-96 oil pans were Corvette-only just as the 63-74 were.

Joe,
Still looking for the correct dipstick. Let see if I understand what you have written: should I be looking only for years 69-71, as well as, 80-96 right hand dipsticks? If so would 80-96 have the same words, length...? I do not own such newer cars (-) the ZR-1 to pop the hood and look
Sam

[Joe L.]

Re: 1970 LT-1 Dipstick

Joe,
Still looking for the correct dipstick. Let see if I understand what you have written: should I be looking only for years 69-71, as well as, 80-96 right hand dipsticks? If so would 80-96 have the same words, length...? I do not own such newer cars (-) the ZR-1 to pop the hood and look
Sam

Sam------


You're looking for a 1965-74 Corvette small block dipstick, GM #3862730. However, if you want one with the correct embossments on the blade, then you need one from about the 69-71 period. The embossments changed over time.

While the configuration of the 80-96 Corvette oil pans is similar to 63-74, the dipsticks are different in many ways. So, you definitely don't want any of the 80-96 dipsticks.

[Sam G.]

Re: 1970 LT-1 Dipstick

Sam------


You're looking for a 1965-74 Corvette small block dipstick, GM #3862730. However, if you want one with the correct embossments on the blade, then you need one from about the 69-71 period. The embossments changed over time.

While the configuration of the 80-96 Corvette oil pans is similar to 63-74, the dipsticks are different in many ways. So, you definitely don't want any of the 80-96 dipsticks.

Joe,
Thank you for explaining the above. I have also posted on Corvette Forum. The car has been Top Flighted, Bloomington Gold, Duntov, PV by previous owner but there a few things that I want to take care of such as the dipstick and the boot cover that goes over the shoulder harness seat belt. The challenge on that is the color...Donnybrooke Green inside and out. May have to buy the boot protector from a storefront (Zips....) and dye them. Getting it ready for the Hilton Head Concour in Nov. Don't expect any judge to ask to see the dipstick but that's the OCD in me :-)
Sam

[Jeffrey S.]

Re: 1970 LT-1 Dipstick

Sam,
Attached is a photo of the dip stick from my '69 (original) small block, and a second one I have which is for sale. My original is the bottom one. Also is a picture of the top of both handles with the black plastic plug. Both are exactly the same length. If this is what you are looking for contact me off the Board.
Jeff

[Ronald R.]

Re: 1970 LT-1 Dipstick

Joe am i looking for the "J" or lollypop design on the 70 ZR1/LT1? thanks RDR

[Joe L.]

Re: 1970 LT-1 Dipstick

Joe am i looking for the "J" or lollypop design on the 70 ZR1/LT1? thanks RDR

Ronald------


If you are referring to the handle configuration, the configuration seen in Jeff's photos is correct. The LT-1 or ZR-1 dipstick was no different than any other Corvette small block for 1970 (and most other 1965-74 Corvette small blocks).

[Ronald R.]

Re: 1970 LT-1 Dipstick

This is what i have but a little off on length

[Ronald R.]

Re: 1970 LT-1 Dipstick

Yes This is what mine looks like the script is ths same the add and fill marks are as per this picture. thanks Ronnie

[Joe L.]

Re: 1970 LT-1 Dipstick

Yes This is what mine looks like the script is ths same the add and fill marks are as per this picture. thanks Ronnie

Ronnie------


This is an old dipstick but I can't say if it's exactly correct in every way for a 1970 small block. The "MS" oil standard dates back to the 60's. The API "SE" was used from 1971-79.

The measurements I have are as follows as were made from a known GM #3862730 dipstick:

measured from bottom of "bell" to "full"mark = 19-1/2" and to "add"mark= 20-1/4"

measured from top of "bell" to "full"mark=20-1/16" and to "add"mark = 20-13/16"

The specs in the GM P&A Catalog as well as the NCRS Judging guide are as follows:

to "full" mark=20-5/32" and to "add" mark= 20-59/64"

Take your pick