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Labor Day Putting down your wrenches or time for
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Dec 2010 Posts: 24 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2010 Posts: 24 | Does it matter which fan I use on my 235, the older small one from a 216 or the larger bladed one from the 235? I'm using the 216 water pump with the adapter plate from pre68dave.
Terry
'52 Chevy 3600
'03 Chevy 2500HD
'64 Pontiac Grand Prix
'93 Jeep Wrangler
| | | | | Joined: Jan 2009 Posts: 1,644 Shop Shark | | Shop Shark Joined: Jan 2009 Posts: 1,644 | You will find that you have to use the 216 fan on the 216 pump the 235 fan will not fit, mine didn't and I did the same thing on my truck, 235/216 pump adapter plate.
Pete | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | It could be confusing (if not incorrect) to refer to a 235's fan blade as if one size of blade was used on all years of 235s (41-63). And, it is not correct to state that only one size/style of fan blade was used on all years of 216s (37-53). Car vs truck 235 fan blade might be different in different years. And, several sizes of blades (and number/configuration of blades) were used on car and truck 216 engines. Seven different blades were used on 216 AND 235 engines from 37-53. The very common 16.75" blade was a length only used on 1953 and earlier engines (216 and 235). However, an 18" blade used on both low pressure engines and on high-pressure 54/55 235 engines. It looks like 17" or 20" blades were used on various (high-pressure) 235 engines (car and truck) from 55-2nd through 1957 (and maybe through 1963?). | | | | | Joined: May 2005 Posts: 487 'Bolter | | 'Bolter Joined: May 2005 Posts: 487 | Whichever one you use, check it carefully for cracks. I've known of 3 to fail due to cracks in the bolt hole area. The 1st was back when I was in high school. It came apart and sliced through the inner fender. Then I bought a 53 about 10 years back -- I discovered it was cracked during a engine cleanup and drove it around with only 2 blades for a while. On that truck I also found a slice in the hood from a prior slinging event when I was reworking a previous owner's body work. Be safe!
regards,
Leon
ps: Sorry if I sound like your mother.
Last edited by Leon; 04/08/2011 2:41 PM.
| | | | | Joined: Jan 2008 Posts: 4,960 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,960 | You were lucky you had a Chev 4 blade fan and not a GMC 5 blade fan. That used to be a rather common sight. That is why it was common practice to push the tips of the fan forward at oil changes. Belts were so bad in those days too that they needed checking every time oil was changed also. The broken blades don't seem to want to go forward toward the radiator core, but I have seen them come up through the hood. 50 years ago, we considered a fan much more dangerous than multi-piece wheels. | | |
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