Technical Needed somebody to cross some old piston parts numbers....

I am on the hunt for some 3-1/8" Pistons in Standard that also had a Plymouth Application Aprox 1933-41. Superior/Arrowhead A-927. Thompson L734.

I really would like to come up with a old Sealed Power number, to I can broaden my search. Can anybody with a old parts book help?

 

37P

 

37P is for the 3 1/4" version. I'm looking for the 3 1/8"......

 

Try N.B. Pease & Co. 1-413-283-7620. Nelson has an antique auto parts business that specializes in mechanical parts,