hey guys and gals. i have recently purchaced a 55 poncho that it was sold to me as a 235chevy but the previous owner to the guy i brought it off said it was a 250. I dont know these engins so could someone please tell me the difference between the to so i buy the correct parts for the engine Thanks
howdy, if i remember correctly a 235 has only 4 screws holding down the valve cover and a 250 had more but i cant remember the exact count,also the 235 cover is rather square and 250 has contour . hope this helps.
They are totally different engines. The 235 will have a valve cover with straight edges and sides, the 250 is irregular in shape with 'indentations' along the side. Also, the 250, at the rear of the block has an integral "flange" to which the transmission bolts, the 235 bellhousing is a seperate part. the starter on a 250 bolts up to the block with verticle bolts, the 235 has a starter with bolts running horizontal into the bellhousing. These are just a few of conspicuous differences that should allow you to identify which you have. Ray
Um, yeah, but without one to compare to the other.... One sure-fire way, 235, round intake ports; 250, they're rectangular. You should be able to notice this with all of the parts on the engine, BTW. Depending on the year, or if the valve cover has been swapped, early 235's had two studs on top of the V/C instead of the four stovebolt screws. Look on the drivers side of the engine above #2 and #3 cylinder, if there is a six digit casting # ending in 913, 848, or 850, its a 235 (or maybe 261). Go to the Inliners International website and check their list of casting numbers. Oh, yeah, 250, distributor towards front of engine, 235, in the middle. First two pics are a stock 194, like a 250. Next two are a 261 and an early 235. Later, Kinky6
235; One piece side cover. Dist. in middle of block. 250; Two piece side cover. Dist. toward front of block.
235's from '52 thru '54 used side mounts, then again, I think, '58 thru '62. '55 thru '57 used the front mounts, blocks may have the side mount bosses, not sure about that. Ray
http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS357&q=235+chevy+engine&btnG=Google+Search http://www.google.com/search?hl=en&newwindow=1&safe=off&rlz=1G1GGLQ_ENUS357&q=250+chevy+engine&btnG=Search
thanks guys, this has realy helped, ill go check it out tomorrow, but from this information i THINK it is a 250
If it has the original engine in it, it's a 261. Look down by the starter and there is a couple of casting marks that look like a number 11 .
You pm'ed me about this back in January, the motor is a 250 from a early to mid 60's Chevy. The trans is a 350 and the rear end is from a late 80's Camaro. I ran the numbers and bought parts for a 250 when I owned this car. As far as the guy who sold it saying it is a 235.....well...I wouldn't trust him as far as you could throw him. Here are pics of the motor the day I bought the car.
Perhaps he meant to say 230? 235 and 261 valve covers look much wider. Sent from my XT1254 using The H.A.M.B. mobile app
All fat block GM sixes (194, 207, 216, 228, 235, 248, 261, 270, 302) from 1929-1962 had rocker SHAFTS although GMC did use a flathead for a couple years in the 30's. All skinny block sixes (194, 230,250, 292) from 1963 on used rocker STUDS. If the pan is off the fat blocks had 4 main bearings and the skinny blocks have 7.
If the rocker arm cover is off, the 235 has a shaft the rockers ride on, a 250 will have stamped rockers and the valve train looks just like a small block.
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