We are having a build done on a 348 truck block this winter. It is the 3857655 block, stamped CFD and so far, everything is looking good. Wondering if a 348 & a 409 use the same water pump, if not, what is the difference and what is going to work on the truck block? Thanks for the help, I am sure by this being a truck block we will have lots of questions.
Water pump question.
- Thread starter dlrablk58
- Start date
Here's the water pump list on this site which should help ya: http://www.348-409.com/part.html#WP
There are no differences in passenger car water pumps from 348-409 other than the casting #'s from what I understand. I believe there are a couple of different truck water pumps. One positions the fan higher if I remember correctly? As far as your 655 block goes there may be some casting differences in the webbing around the main journals. I am sure there are others here that can elaborate better than I but, other than that it is basically the same as a passenger car block as all the 348 blocks had the relief cut in the combustion chamber. As mentioned in another recent thread there were some 348 truck blocks that had 2-reliefe cuts in the combustion chamber but I believe those to be 872 castings or possibly some 5011 castings.