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73-up oil pump on 68 BT

Started by xlfan, March 31, 2022, 08:13:36 AM

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xlfan

March 31, 2022, 08:13:36 AM
Has anyone tried this? Is it any case drilling involved? Not S&S billet pump, aftermarket cast old style pump.

JSD

March 31, 2022, 08:40:02 PM #1
68 has upgraded pump pre were cast

billbuilds

April 02, 2022, 05:46:54 PM #2
     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.
Anybody who tries to tell you that the press is the enemy of the people is just that.

SP33DY

April 03, 2022, 10:20:29 AM #3
Use S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig :hug:

billbuilds

April 03, 2022, 01:20:16 PM #4
Quote from: SP33DY on April 03, 2022, 10:20:29 AMUse S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig :hug:

    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 
Quote from: SP33DY on April 03, 2022, 10:20:29 AMUse S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig :hug:

     Those instructions are for an S&S billet aluminum pump which is a different animal than a stock 73 pump.
Anybody who tries to tell you that the press is the enemy of the people is just that.

JSD

April 04, 2022, 09:06:26 AM #5

Quote from: xlfan on March 31, 2022, 08:13:36 AMHas 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

April 04, 2022, 09:08:30 AM #6

Quote from: SP33DY on April 03, 2022, 10:20:29 AMUse S&S 53-0013 Crankcase Oil Passage Drilling Jig to get the oil passages right. Instructions can be found here:

Drilling Jig :hug:
Correct if using 73 pump and end oiler

xlfan

April 05, 2022, 12:14:32 AM #7
Quote from: JSD on April 04, 2022, 09:06:26 AM
Quote from: xlfan on March 31, 2022, 08:13:36 AMHas 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.
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