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Joined: Mar 2017
Posts: 88
J
Shop Shark
Shop Shark
J Offline
Joined: Mar 2017
Posts: 88
I am getting close to getting my 1954 chevy 3100 running and I noticed something that could be a problem. I have my 1957 235 engine installed. The fan sits almost flush with the front cross member in the frame. I dont currently have the radiator or radiator support so I am not sure but it looks like the fan is sitting way tot far forward. I have heard chevy 260 engine wont easily fit these trucks because the water pump is too long. Will I have the same issue with this engine? I can put a shorter water pump on this engine? Maybe the support sits further forward than I am thinking but it definitely looks like there is a serious problem here.

Thanks

Joined: Sep 2001
Posts: 29,270
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,270
Do a Search here on:

+pump +plate

and you will see that this topic is discussed quite often.

Here is the write-up by the member who makes/sells the 1955-1963 235/261 water pump relocation plate:
http://chev235guy.blogspot.com/search/label/Water%20Pump%20Relocation%20Adapter

The 235/261 water pump is in the correct location on 1954 and early 1955 high-pressure engines.

The "short shaft" water pump and the wrong year/diameter fan blades are incorrectly located for optimum cooling in earlier trucks.

Joined: Dec 2013
Posts: 795
Former BMW Rider
Former BMW Rider
Joined: Dec 2013
Posts: 795
I used Chev 235 guy's adapter plate and a short shaft water pump on my 1955 235. It was a slick conversion. I also had to drill the timing cover plate to accept the front motor mount.
Attachments
1955 235.jpg (238.31 KB, 177 downloads)


Andy

His: 1947 Chevrolet 3104
Hers: 2008 American Saddlebred

"I proudly Stand for the Flag and Kneel for the Cross" Unknown
Joined: Jan 2014
Posts: 3,690
J
'Bolter
'Bolter
J Offline
Joined: Jan 2014
Posts: 3,690
Sharp looking engine bay, Andy. What paint did you use on the engine?


1951 3100
Joined: Dec 2013
Posts: 795
Former BMW Rider
Former BMW Rider
Joined: Dec 2013
Posts: 795
Thanks JW51,

I used the dark grey engine enamel from The Filling Station. It took a couple of cans to paint the engine and bellhousing. I purchased three cans for the job as recommended by 52Carl and I'm glad I did. The third can has been useful for some touch-up.

Originally, I had planned to use Ford Dark Gray Engine Enamel, a Rustoleum product. However, I bought a can locally assuming the hardware store would get more inventory and learned shortly thereafter it was discontinued by Rustoleum........


Andy

His: 1947 Chevrolet 3104
Hers: 2008 American Saddlebred

"I proudly Stand for the Flag and Kneel for the Cross" Unknown
Joined: Mar 2010
Posts: 10,310
5
Renaissance Man
Renaissance Man
5 Offline
Joined: Mar 2010
Posts: 10,310
Dang Andy. I can see now that I need to stop corresponding with you. Your stuff is looking way better than my pile! Oh well...
Carl


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
Joined: Mar 2017
Posts: 88
J
Shop Shark
Shop Shark
J Offline
Joined: Mar 2017
Posts: 88
Good to know thanks for all the comments. I ordered an adapter plate and a 54 water pump and will hopefully get it installed next weekend. I read some mention that a 54 and 57 used different size radiator hoses. So do I also need a different size thermostat housing?

Joined: Jul 2010
Posts: 592
M
Shop Shark
Shop Shark
M Offline
Joined: Jul 2010
Posts: 592
Check the inlet diameter on your radiator. It is probably 1 1/4". You'll need just the top section of the tstat housing to match. They are available with both 1 1/4" and 1 1/2" outlet sizes. They are identical other than the outlet size. Both sizes have the threaded hole for the fuel line clip. You'll probably need the 1 1/4" size to fit the inlet to your radiator. Your '57 235 would have come with the 1 1/2" size from the factory. They are usually available on ebay and are relatively inexpensive.


There are also versions of the top section that are for cars, not trucks. The angle and length of the outlet is a bit different and some don't have the threaded hole for the fuel line clip. You'll want to get the version that looks just like yours but has the correct size outlet.

The bottom sections are exactly the same for both tops, but are threaded for either a 3/8"NPT or a 1/2"NPT heater hose connector. This won't matter if you aren't running a heater because you will just plug the hole, but if you are, it might matter. If your bottom has a 1/2" hole (which they did in 1957), you can either install a reducer bushing or simply buy a new hose barb that is the correct size for your heater hose and has a 1/2"NPT male thread.


Matt

Joined: Mar 2017
Posts: 88
J
Shop Shark
Shop Shark
J Offline
Joined: Mar 2017
Posts: 88
Originally Posted by Maybellene
Check the inlet diameter on your radiator. It is probably 1 1/4". You'll need just the top section of the tstat housing to match. They are available with both 1 1/4" and 1 1/2" outlet sizes. They are identical other than the outlet size. Both sizes have the threaded hole for the fuel line clip. You'll probably need the 1 1/4" size to fit the inlet to your radiator. Your '57 235 would have come with the 1 1/2" size from the factory. They are usually available on ebay and are relatively inexpensive.


There are also versions of the top section that are for cars, not trucks. The angle and length of the outlet is a bit different and some don't have the threaded hole for the fuel line clip. You'll want to get the version that looks just like yours but has the correct size outlet.

The bottom sections are exactly the same for both tops, but are threaded for either a 3/8"NPT or a 1/2"NPT heater hose connector. This won't matter if you aren't running a heater because you will just plug the hole, but if you are, it might matter. If your bottom has a 1/2" hole (which they did in 1957), you can either install a reducer bushing or simply buy a new hose barb that is the correct size for your heater hose and has a 1/2"NPT male thread.


Matt
Great good to know. I will keep all that in mind. Thanks again


Moderated by  Phak1, Woogeroo 

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