Re: water pump 140?

Posted by Stan(VA). on June 18, 2007 at 08:51:04 from (67.142.130.25):

In Reply to: Re: water pump 140? posted by baccerfarmer2 on June 17, 2007 at 19:37:08:

Hugh, thanks for posting the block numbers, didn't have time to look them up again yesterday. I think the 354898 R1 and R2 were both used in the Super's (my '54 Super C block was an R2) and seem to recall we found the 100/200 used the R3. That would be when they started casting the C-123 ID on the block, stopped using the old FCM or FAAM motor prefixes, switched to the C123 prefix and restarted the engine serial numbers at 501.

Back to this thread:
The bolt spacing on the front of the head is the same so you could use either water inlet/thermostat housing. Your problem is that if you stick with the 140 housing it will line up with your radiator neck but will need a bypass blocked off and have no way to mount a fan and belt pulley assy; the 100 housing won't line up with the radiator, but will allow you to mount the old style fan and pulley assy which will line up with the old style water pump. This would require the old style front pulley with the wider fan belt but be aware that the pulleys mount differently as well and you didn't mention if you are trying to use a 140 or 100 style crankshaft which would have the narrow or wide pulley respectively.

I realize that the engine will bolt in; my comment about it not being a "bolt in swap" may have been more clear if I had said that the 140 and 100 blocks are not a direct interchange. I have done the opposite of what you are doing (put a 140 block into a Super C) and that exercise was the basis for the comments. Going the other way you may find some short cuts that weren't open to me? I even recall custom machining an old style pulley once to fit a newer crankshaft but that was a different project.

Possible? Certainly. Simple as bolting on a different style water pump? No.
Stan(VA).

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