IS ANY ONE COULD CONFIRM IF THEIR IS A DIFFERENCE IN SIZE FROM 1938 LASALLE TO CADILLAC 42-48 FOR THE LIFTER PLUNGER AND THE PISTON THE PLUNGER FIT IN .
I AM TRYING TO GET A SET FOR MY 1938 LASALLE ,BUT IT SEEM I CAN GET THE PLUNGER ONLY.
IS ANYONE COULD HELP SOURCING BOTH
My Master Parts List says all plungers and pistons were the same for all series 50 thru 75 from 1936 to 1940. They appear to have been different part number for '41 and '42 but that doesn't necessarily mean they won't do the job. They used to be available as pairs from Terrell Machine in Texas.
Regards