Need 318 Gurus

Ok, so here are 2 scenarios. I just have questions on each, and then I'll leave everyone alone...

For reference; Blue engine = later year, aluminum water pump/timing cover
Orange engine = early year, cast iron water pump/timing cover

1- Move the water pump and timing cover from the blue engine to the orange. This will give me the WP inlet on the pass side, which will allow me to also use the alternator/PS pump brackets AND pulleys that are currently on the blue engine. In an earlier post, there was mention that the damper should be matched to the crank. So, that means keep the orange damper and re-do the timing marks? Or use the blue damper to keep the timing tab/marks where they are with the blue set up?

2- Keep the current water pump and timing cover on the orange engine and try to find alternator/PS pump brackets and pulleys for the early set up. Are those going to be WAY harder to find?

I'll get the correct radiator, depending on which water pump is used.
The oil pan and pick need to be changed to the truck style, so that is a given for either motor.

Thanks again for all the guidance.


If you're gonna put it into a Ramcharger, you may need to change the oil pan to a truck pan if they don't already have one on it... And get a matching oil pump pick up tube to match...

The hump is in a different spot on a truck pan than on a car pan....

How to ID a Small Block Oil Pan 60's - 80's