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Chevs of the 40s

Username Post: Dilemma        (Topic#355995)
Airlifter 
"4th Year" Gold Supporting Member
Posts: 587
Airlifter
Age: 73
Loc: Tazewell county, Virginia
Reg: 06-07-15
04-12-19 08:07 AM - Post#2764105    

My rebuilt 235 has developed cracks in the water jacket. They are not a single crack but several small cracks along one long crack. I don't know what caused them and at this point it really doesn't matter.

Now I am looking for a motor. I would like to find a 261. If not that, maybe a 250. I would hate to have to rebuild another engine so I would like to find a good one.

While I hoping I might as well hope large

Anyone used the 250?

As usual, all comments and advice appreciated, Pete

1951 styline deluxe sport coupe w/54 engine & powerglide


 

Chevs of the 40s

2blu52 
"18th Year" Silver Supporting Member
Posts: 18848
2blu52
Age: 85
Loc: Montana
Reg: 03-12-02
04-12-19 04:45 PM - Post#2764143    
    In response to Airlifter

Not knowing where the long crack is located this may not help. A friend put a 216 in his restored 34 chevy pickup only to find that he had a crack in the block on the push rod side and just above the pan flange, he had another 216 laying around so he moved the new parts to that block, he then tried a 3 rd one with the same crack as the other two. He gave up and used a block sealer to what GM sells for manifold leaks. Stopped the leak and he has had no trouble since.

"PEACE IS THAT GLORIUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"

THOMAS JEFFERSON


 
50hotrod 
"7th Year" Silver Supporting Member
Posts: 1008
50hotrod
Age: 62
Loc: Wisconsin
Reg: 07-25-11
04-13-19 11:17 AM - Post#2764168    
    In response to Airlifter

The 216 235 261 all share the same belhousing bolt pattern. A later model 230 250 292 shares a belhousing bolt pattern with the V8'S The later model inlines could work with a belhousing adapter plate.


1950 CHEVY 2 DOOR 327 TRI POWER FENDERWELL HEADERS HEIDT FRONT SUSPENSION 700R4 TRANS 411 REAR



Edited by 50hotrod on 04-13-19 11:33 AM. Reason for edit: No reason given.

 
gcrkfrd 
Silver Supporting Member
Posts: 64
gcrkfrd
Age: 72
Loc: Neosho, MO.
Reg: 04-01-18
04-13-19 12:59 PM - Post#2764175    
    In response to 50hotrod

I've had three or four 216 and 235 sixes with that long crack just over the pan flange. One, I smeared old blue in, and others used K&W to stop leak. Old Chebby Mechanic told me, it was easier to crack the block with ice there than to pop a freeze plug.



 
Airlifter 
"4th Year" Gold Supporting Member
Posts: 587
Airlifter
Age: 73
Loc: Tazewell county, Virginia
Reg: 06-07-15
04-13-19 06:54 PM - Post#2764184    
    In response to gcrkfrd

I have used block seal and KW block seal and JB weld. The leak slowed down a little but still has a pretty good drip. I don't think I can be comfortable trying to repair this. The bride gets really upset sitting on the side of the road waiting for a tow truck.

1951 styline deluxe sport coupe w/54 engine & powerglide


 
Bel Air kiwi 
Deceased Member RIP
Posts: 4558
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
04-14-19 05:01 PM - Post#2764220    
    In response to Airlifter

Hi Airlifter. You need to be aware that if you fit a 230/250 engine they are a lot lower in the deck height of the block than the 292. They wre built as a car/wagon style engine and the 292 was more of a van/ truck unit and consequently, they are very much lighter. Nearly 200lb differeence

This will mean that if you fit a 230/250 to replace a 235 the nose will go up in the air quite a bit. It won't change much at all if you go 292.

The 230/250/292 are all about the same length as the GMC 302 so you will need to make radiator clearance. See forum posts

The big plus of the third series engine is the ability to have more gears, the downside is open driveline conversion.

Cheers Kiwi

48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

"They made a desert and called it peace." Tacitus


 
Airlifter 
"4th Year" Gold Supporting Member
Posts: 587
Airlifter
Age: 73
Loc: Tazewell county, Virginia
Reg: 06-07-15
04-15-19 04:30 AM - Post#2764249    
    In response to Bel Air kiwi

Thanks, but I have decided that if I cannot fine a good later 235 or 261 I am going to bite the bullet and go to LS engine and modern transmission. This is really not the route that I want to take but is an option.

1951 styline deluxe sport coupe w/54 engine & powerglide


 
Bel Air kiwi 
Deceased Member RIP
Posts: 4558
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
04-17-19 07:44 PM - Post#2764440    
    In response to Airlifter

Hi Airlifter. Your car your call. The thing about the 230/250 is you have to lower the front if you weren't' going too.
The 292 is a real heavy old plodder of an engine and has similar drive characteristics to our 235/261 blue flames in that it is a low revving high torque engine.
To get the rocker cover off in place and have fan clearance then you need to move the mounting brackets on the radiator back about 3/4 to move the radiator forward.

The 292 tops out at less than 200Hp so it doubles the available power. Rather than four times more power you are likely to get with a modern V8.
Four times the power on stock suspension and drum brakes just isn't wise.

The big plus with the 292 is the number of late transmission option you have. The second big thing is the number of things that don't need to be reworked.
You don't have steering clearance issues with the box, you don't have to take out the E-brake. You don't have nearly as much difficulty fitting an exhaust system. You don't have to butcher the firewall to fit it.

Cheers Kiwi



48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

"They made a desert and called it peace." Tacitus


 
Airlifter 
"4th Year" Gold Supporting Member
Posts: 587
Airlifter
Age: 73
Loc: Tazewell county, Virginia
Reg: 06-07-15
04-18-19 04:47 AM - Post#2764449    
    In response to Bel Air kiwi

I have decided that I am going to find a 235 or 261. The 235's up to '62 will work. I want to a fairly stock appearance and performance.

Thanks for all the input and advice. Pete

1951 styline deluxe sport coupe w/54 engine & powerglide


 

Chevs of the 40s

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