Dan Marx

Studebaker Light Six Pistons, NOS

Recommended Posts

Posted (edited)

This is a standard set of Light Six pistons, with bushings,  that have been on the shelf for many years.  Only one original box has survived, $200 plus postage.   Contact Dan at 803-549-two one eight seven. 

 

studebaker light 6 pistons.jpg

Edited by Dan Marx
added information. (see edit history)

Share this post


Link to post
Share on other sites

For the Light Six in 1920-22 they used a 3 ring piston with an 11/16" piston pin and unbushed. Then sometime in 1922 they switched to a 4 ring piston with a bushed pin. In 1924 they changed to a larger diameter (7/8") piston pin. Rods and piston pins need to match pin bore size in pistons.

Share this post


Link to post
Share on other sites

OK, here's what I have; 4 ring piston, 3.5 in diameter; brass bushings, 1.0 in diameter.  Light Six 1922-23?  Thanks

Dan

Share this post


Link to post
Share on other sites

The replies have indicated these may not be Light Six pistons, any one have an application for this piston set? As measured they are 4 ring pistons, 3.5 in diameter; brass bushings, 1.0 in ID.  

Thanks

Dan

Share this post


Link to post
Share on other sites

The bore of 3.5 " suggests the bigger earlier Light Six - 1919 on - which became the Special Six in 1920 when the 'new' Light Six came out.

Share this post


Link to post
Share on other sites

The Erskine logo on the box indicates that these were likely made after the Erskine was introduced for the 1927 model year. By chance is there a part number on the box or a casting number inside the pistons?

 

Share this post


Link to post
Share on other sites

Chiltons shows a piston 3.5" dia., 4 ring grooves 3/16" wide. Piston height is 411/16", centre of pin to top of piston 29/16", distance between bosses 1.25", no set screw hole and 1.000" diameter pins. Distance between bosses is the distance inside the piston between the pin bosses.

 

That is for a 1927 EQ Special 6. This version of Chiltons begins at 1927 so if that engine was used earlier, those pistons may have been used then too. Looking above, @nzcarnerd's post might show it was used from 1919.

Share this post


Link to post
Share on other sites

Thanks for the reply and looking up the piston info.  Yes these piston measurements are exactly what you stated.  So, these fit an EQ Special 6, that may go back to 1919.  

On 4/8/2019 at 6:19 PM, stude24 said:

The Erskine logo on the box indicates that these were likely made after the Erskine was introduced for the 1927 model year. By chance is there a part number on the box or a casting number inside the pistons?

 

No part number or casting number.

Thanks

Dan

Share this post


Link to post
Share on other sites

These are likely special six pistons, 19 to 26. In 19 the special six was called the light six and renamed in 1920 to the special six. As the new light six line was introduced in 1920. I believe the special six might have been exported as the light six also.

Share this post


Link to post
Share on other sites

When it comes to the early vehicle names, sometimes it's just easier to use the vehicle models instead.  Based on what has been discussed above these are part number 32100 and should fit:

1919-1921 EH

1922-1924 EL

1925-1927 EQ

 

Depending on the year the EH model was called a Light Six or Special Six so its gets confusing.  ELs and EQs were only called Special Six. Hopefully you find a buyer.

 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now