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235ci or 261ci
Posted: Thu Jan 04, 2007 2:15 pm
by Miner Matt
How do I tell if a engine is a 261 or a 235 without taking it apart??
Posted: Thu Jan 04, 2007 6:08 pm
by dr deuce
The 261 (US) has two large fittings on the drivers side that connect to hoses like for power steering in a 60's car. These go to the oil filter hung on the intake manifold.
On a 261, ALL the oil from the pump passes out of the engine block and thru this filter before re-entering the engine. It is a full flow oil filter system like a modern engine.
You can buy a remove oil filter mount/bracket that will accept a spin on modern filter and mount it low in the chassis.
Posted: Fri Jan 05, 2007 7:56 pm
by John V Cliche
Hey Doc
What about the lifter pan cover and the oil regulator ,is there a spotting difference there as well ?
Thanks
John
Posted: Fri Jan 05, 2007 9:02 pm
by dr deuce
I don't think so.
The really BIG oil hoses give it away. The block where they come out is slightly different.
If you ever find one of these engines and it is salvagable, BUY it! They are hard to come by.
Posted: Tue Jan 09, 2007 11:00 pm
by Miner Matt
I found another differance. On the 261 there are three casting lines on the block were starer bolts up!!!
Later,Matt
Posted: Mon Nov 26, 2007 5:09 pm
by daveyboy
or you can go by the casting numbers.
the one I bought has a casting number of 3836340, date code of C 5 5. making it a 1955 motor.