Quote:
Originally Posted by Tru2Chevy
So you say that both the standard ARP and Melling shafts should work fine in a 400 block, but check that the shaft spins freely to be sure due to the notorious core shift issues with 400 blocks?
As I said above, my motor is already together and running with the stock pump and shaft, I just thought that it would be a good idea to replace it while I'm putting a new oil pan and gaskets on.
To test the shaft, would it be ok to install the new pump and shaft, and then just try spinning the shaft with a screwdriver, or should I pull the cam gear off of the distributor before installing it and test it that way?
- Justin
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nope that wont work the dizy centers the whole assembly -- cam gear mesh is taken into account as well note i read what you said and i am guessing you used the original 400 shaft and put a new or re used the plastic couple that retains the two -- correct - if so you are ok the oem shaft clears ???/// jz
ps -- the oem type pump works well with plastic conector even the Z28 pump its only when you high volumn the pump that steel sleave couple is the thing -- jz