by Old Skool Fri May 18, 2012 8:22 am
The two engines are identical externally. Any and all the other 240 parts are a direct bolt on, other than the 300 has a three belt dampener and uses a crank bolt.
The oil filter adapters (90 degree) will go in either block by removing your 240 block adapter and installing it in your 300. Use an easy out to remove your adapter from your 240 block, or a lock nut using the adapter bolt.
The plug for the dip stick tube hole is a standard freeze plug type plug. When removing your old dipstick tube use anything that is round and fits snugly inside the end of the tube, and carefully use a pair of pliers or vice grips to carefully twist the tube and remove it from the block so that you can install it in the 300 block. Much the same idea as using a socket to remove head gasket alignment rings for head gaskets.
In order to use the crankshaft dampener bolt, simply install a 1/2" fan spacer if you want to use the 300 dampener bolt.
The oil filter adapter does make everything easier and also no oil to spill when you change it, and certainly much easier than cutting the floor for clearance.
ALSO,, for those that do not realize it, the housing itself has TWO o-rings in it,and those should be replaced also.
The OEM fiber type seal on the bolt breaks very easily so I use a copper oil pan drain plug seal. ANYONE needing a 90 degree adapter I have a box full of them here.
vic