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#69300 11/28/2006 4:34 PM | Joined: Apr 2004 Posts: 84 Member | | Member Joined: Apr 2004 Posts: 84 | I have to rebuild my engine. What I thought was a 216 babbitt motor for my 49 turns out to be a 1960 vintage 235 with matching period head and modern styled bearings, not dippers. The valve cover, however is not the flat engraved type with the bolt pattern at the base. Instead it has the rounded two bolt style found on the 216 motors. Were these covers interchangeable? The engine number is 3769716 (F82 GM 28) and the head number is 3836848 (GM 30). | | |
#69301 11/28/2006 4:44 PM | Joined: Mar 2005 Posts: 637 Shop Shark | | Shop Shark Joined: Mar 2005 Posts: 637 | 235's prior to 1954 had the 2 bolt valve covers, same as 216's. The 848 head should be drilled and tapped for the 4 screws on the valve cover so you could use either type. | | |
#69302 11/28/2006 9:31 PM | Joined: Sep 2006 Posts: 1,276 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 1,276 | I have seen a lot of GMC's to 56 with the same valve cover. Seem as GMC may have used it longer than Chevy. Just an observation. | | |
#69303 11/28/2006 10:05 PM | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Is the GMC 2-bolt valve cover the same as the Chevrolet 2-bolt valve cover? | | |
#69304 11/28/2006 10:28 PM | Joined: Sep 2006 Posts: 1,276 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 1,276 | I don't KNOW good queston. Anybody know? | | |
#69305 11/29/2006 1:48 AM | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | I don't think so. They call the GMC engine the "long motor" because it's demensionally longer than the Chevy, but I guess the head could still be the same, who knows,
Scott | | |
#69306 11/29/2006 2:11 AM | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | I would bet they are different but I am not 100% certain. | | |
#69307 11/29/2006 4:21 AM | Joined: Mar 2005 Posts: 1,029 Member | | Member Joined: Mar 2005 Posts: 1,029 | Patrick's shows them for 216, 235 and 261 Chevies but nothing for Jimmies. | | |
#69308 11/29/2006 4:25 AM | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | Theres quit a difference between the chevs and gmcs. Gmcs are longer, a few inches longer. They wont interchange. But some of the rocker arms can be interchanged, just not all of them as the chev valves are at opposing angles while the gmcs are all in a line. | | |
#69309 11/30/2006 2:11 AM | Joined: Mar 2005 Posts: 637 Shop Shark | | Shop Shark Joined: Mar 2005 Posts: 637 | I have a GMC engine and a Chevy sitting side by side on my garage floor. The GMC is about 1 1/2" longer, the valve covers are not interchangeable. | | |
#69310 11/30/2006 2:46 PM | Joined: Jun 2000 Posts: 454 Shop Shark | | Shop Shark Joined: Jun 2000 Posts: 454 | As I mentioned over in the serial number thread, swapping a 216 valve cover onto a newer 235 is relatively easy. Most of the vendors sell a kit that includes two threaded studs, two acorn nuts, and a couple of rubber gaskets. You simply replace two of the rocker arm hold down bolts with the threaded studs and put the 216 valve cover on to the 235 engine.
The only reason for doing this is to make the newer 235 look like the original 216.
Jeff Nelson
"Beer is proof that God loves us and wants us to be happy." - Benjamin Franklin
"Always do right. This will gratify some people and astonish the rest." - Mark Twain
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#69311 11/30/2006 8:36 PM | Joined: Sep 2006 Posts: 1,276 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 1,276 | See that is what I like about this place. You fined ansers to questions, you may not have ever thought to ask else where. | | | | | Joined: Oct 2008 Posts: 47 'Bolter | | 'Bolter Joined: Oct 2008 Posts: 47 | OK, I may need another head. I want to use a 216 valve cover. I want to try to get a "848" head if the existing one on my engine is indeed bad. From what I see on this thread, the "848" head can use a 216 valve cover... is that correct?
This is also my understated, sly way of putting the word out that a guy in N. Ala. is looking for a good 848 head... hint, hint...
Last edited by stoveboltgator; 08/14/2014 6:21 AM.
| | | | | Joined: Nov 2011 Posts: 1,610 'Bolter | | 'Bolter Joined: Nov 2011 Posts: 1,610 | No need to buy any kit. Just use the two studs and associated hardware from your old 216 or babbit 235. | | |
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