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| | | | Joined: Apr 2007 Posts: 1,038 'Bolter | | 'Bolter Joined: Apr 2007 Posts: 1,038 | I obtained a previously rebuilt non-working 235 engine (1961 block)for parts. It has a 1953 dated head (casting #3701887) that I had cleaned and magnafluxed, showing no cracks. From the parts list I understand the '53 head was used on both splash oiler and high pressure engines. Since I have two trucks that were retrofitted with 235s, both with '58 blocks, I thought I might go ahead and have it rebuilt and store it for possible use later. I understand that the '53 head is probably the least desirable in terms of compression but my trucks are used for relatively light duty and I am not interested in high performance. I did note that the valve cover bolt holes on the manifold side extend into the water jacket of the head. Is that a problem? I would assume thread sealant would be necessary if I used it. Is this a good idea or do I just have an oversized desk ornament? | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | I thought that all USA 216 and 235 side covers ended at the top of the block?
I thought that 3701887 was a head used on 1953 235 truck engines - 18 head bolts (not 15 bolts as used on earlier 235s and all 216s)?
| | | | | Joined: Feb 2004 Posts: 29,772 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,772 | How about using studs in the valve cover bolt holes that hit water and use Loctite or thread sealer for a one-time fix? If it's an 18-bolt head, it should fit the later blocks OK.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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| | | | | Joined: Apr 2007 Posts: 1,038 'Bolter | | 'Bolter Joined: Apr 2007 Posts: 1,038 | I went and counted head bolts, it has got 18. I like the idea of using studs, so you don't end up with coolant leaking every time you take off the valve cover. Thanks Tim and Jerry!
Kent | | | | | Joined: Mar 2010 Posts: 10,274 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,274 | A 53 235 did not come with 4 bolt valve covers. They came with the two acorn nuts on the top. Someone drilled those holes to accept a later valve cover.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I have seen a 1953 235 low pressure engine with that style of head. It was a time of transition. | | | | | Joined: Mar 2010 Posts: 10,274 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,274 | I have seen a 1953 235 low pressure engine with that style of head. It was a time of transition. What aspect of the head are you referring to? Number of bolt holes? Location of valve cover screws? Carl
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
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