[Guest]

I currently have two CJ7s. One with a fresh 401 and the other with a 304. I was thinking of swapping the engines of the vehicles due to the overall condition of both vehicles. I might sell one???(I know that selling a Jeep is a bad idea) So I would like to put the 401 in the best condition Jeep. My question, the donor Jeep with the 401 has a turbo 400 trans, if I put into the other Jeep that has a manual do I have to have the crank drilled for the pilot bearing? One more question, I also have a spare 401 but it has a crack between a cylinder head bolt hole and a water passage. I have had suggestions for welding this problem, but would like to know if anyone has experienced this.

Thanks for your help

 

[251]

I have been told that ALL 401 cranks were drilled for pilot bushings

i do not know this first hand..just what ive been told..

it would probably be easier to find another 401 block than to try and weld a cast iron block up..

possibly some water jacket stiffner could be used to fill in teh void, but 401s are short of skinny on coolant already..



OzarkJeep
77 CJ5, in a bunch of sanded and primered pieces

 

[elusive]

expect to pay $250 for a flywheel balanced for the 401
keep all the parts to the other 401 and throw the block away

~~Elusive~~
it's sort of still a cj thingy....