any one have an old Jahn's Piston book

Dose any one have a old Jahns piston book? I have a set of pistons and want to know what they fit.
Box has Jahn's Racing pistons, 8-1105-h-rp-std
2 1/64 def 4 1/8. it also has oldsmobile on the side of the box.
Can any one tell me engine size and compression ratio? I think it is a 371 Olds

 

Got calipers???.... Check the od and compression height from the wrist pin centerline....

 

4.125 bore, compression height 1.890 plus .275 half dome

 

8 probably stands for no. of cylinders and in one of my old catalogs it lists 1105H as: 1957-58 Oldsmobile V8-high compression with 21/64 deflector
bore sizes 4, 4 1/16, 4 1/8
compression ratios 10.5:1 57, 11:1 58

 

I got this info out of my first Jahns catalog and never forgot it Bore x Bore x Stroke x .785 x number of cylinders= cu.in

 

Thanks for the info.