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| | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | What year did the 235 go with the shorter side cover over the lifters?? From that 6 cylinder page/photos it appears to be 1950 and up?
John | | | | | Joined: Nov 2006 Posts: 2,544 Shop Shark | | Shop Shark Joined: Nov 2006 Posts: 2,544 | | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I believe there was a short cover 235 from 50 to 52 and the head did not fit a 53. I have the Canadian 216 version of that motor. That motor is shown in photo 9 in Dave's writeup here. Chevy Sixes | | | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | Yeah that was the document I was looking at. I guess it does list full side cover up thru '49. I've often wondered why the heads would not interchange. I know the 50-52 heads have 2 less head bolts, but it appears all the other bolts would align. If you put a newer head on the 50-52 block those 2 bolts would not really hurt anything if not used?? Though I'm not accounting for oiling on this, there may be differences in how the oil is carried to the rocker arms.
John | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Leaving the 1953 block/heads out, there are 18 head bolts on the high pressure 235s and 15 head bolts on the low pressure 216s/235s.
The internal lubrication (including supply of oil to the rocker arms) was the same for 1941-52 216/235 engines.
The 50-53 216 heads are the same as the 41-49 216/235 heads.
The 50-52 235 heads are listed as being different from the 216 heads, presumably due to the side-cover holes on the 216?
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