73-up oil pump on 68 BT

[xlfan]

Has anyone tried this? Is it any case drilling involved? Not S&S billet pump, aftermarket cast old style pump.

[JSD]

68 has upgraded pump pre were cast

[billbuilds]

     I don't think that it will work  correctly as passages will not line up. The cutoff year is 1972, the last year for the side oiling pinion shaft.

[SP33DY]

Use S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig

[billbuilds]

Use S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig

    It's my understanding that you need to use an S&S pump. All S&S pumps are for end oiling pinion shafts and are the 81 and up style that splits the oil path. I do not believe that those instructions are for a end oilin 

Use S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig

     Those instructions are for an S&S billet aluminum pump which is a different animal than a stock 73 pump.

[JSD]

Has anyone tried this? Is it any case drilling involved? Not S&S billet pump, aftermarket cast old style pump.

Why do you want to fit a pre 68 cast pump? Also fit 6 pinion& 24 oil drive gears to ya 1968 

[JSD]

Use S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig

Correct if using 73 pump and end oiler

[xlfan]

Has anyone tried this? Is it any case drilling involved? Not S&S billet pump, aftermarket cast old style pump.

Why do you want to fit a pre 68 cast pump? Also fit 6 pinion& 24 oil drive gears to ya 1968

I don't want to fit a pre 68 cast iron pump, but a post 73 cast alu (not billet) pump.