The Stovebolt Site Forums The Shop Area Engine Shop Has Anyone Tried pre68dave's Water Pump Adapter Plate Yet???????

When installing a 1955-62 235 or 261 full pressure engine in place of a 1937-54 216 or 235 engine, this conversion allows you to put the early style pump on the later engine.

In the past modifying the 1955-62 water pump was done but required a press to force the hub further back on the shaft, then the hardened shaft required being cut off. Additionally a special pulley and fan was required. After all that the pump and fan still sat 3" lower than the 216/early 235 pump and that could lead to overheating and possible fan hum.

By using my adapter with a 1941-54 water pump, the pump is put back in the stock location*. If you need to replace the water pump in the future you can buy an over-the-counter pump and install it without modification.

One other advantage of using this adapter and a stock pump is the stock lower radiator hose can be used. The modified 1955-62 pump has a larger connection for the lower hose so a special hose is needed.

It works perfectly and is probably the best solution. I am using one and my truck stays cool even in 100+ temperature. It does have all new cooling system, engine, and all stock sheet metal surrounding the radiator.

Chuck

Use it, You will not be disappointed. I have it on my 235 transplanted to my 1951 one ton and it works as advertised.

I have one on my 235 in a 48 Chevy 3100

Yep. The only hard part is realizing that you are going to be drilling holes in an otherwise perfect head/block. Spend the $10 and get some center punches and mark the spot and pre-drill undersize. Then drill out.

Unless you mention it, no one will know the plate is there once you paint it.

Have one in my 37 and it was no big deal to drill the holes in the block but its easier to do with the motor out of the truck.