Originally Posted by G508
In the mean time I found this listing: https://www.chevsofthe40s.com/detail/7514/Chevrolet_Chevrolet_Lifter_Solid.html3
Its for a '29-'39 Chevy p/n 838774 would that be the same as GM 2071209?

I checked the part books from 1940-1955 they all list 2071209 for the 270 prior to 771209. But the GMC 52 Parts Number Replacements & Supersessions book list the 838774 as the old number and to use 2071209. They used the same push rod 838409. Maybe you can call them and get some measurements.

Last edited by jimgmc; 01/05/2026 6:39 PM.