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#79671 07/07/2007 1:22 AM | Joined: Jan 2007 Posts: 21 Junior Member | | Junior Member Joined: Jan 2007 Posts: 21 | Can this be done? I have a 2 ton 47' chevy with a 53' 235ci, which was just the big bore 216 and I want to know if you can convert the engine from low oil pressure to high pressure. I have roughly heard about it before, like using the crank from a newer inline 6 but I thought they were completely different engines.
thanks | | |
#79672 07/07/2007 4:49 AM | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy Destry Smith, You would need a different crank, rods, oil pan, and oil pump, and you would have to do something with the oil distribution valve on the side of the block. All in all I would just put in newer full pressure lube engine, hope that helps. | | |
#79673 07/08/2007 6:03 AM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | There is an article somewhere on how to do it. You can keep the original crank if you drill it for the oil holes. It's a pretty big pain in the neck.
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A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#79674 07/08/2007 6:55 AM | Joined: Feb 2004 Posts: 29,826 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,826 | Since the later-model high-pressure 235's aren't that scarce or expensive, it makes better sense to upgrade than to undertake an expensive and somewhat risky modification of the older engine. The only advantage I could see to the conversion would be cosmetic, since the appearance of the late 235 is a dead giveaway that the engine has been changed. The tall pushrod cover can't be fitted to the late model engine to make it look like a 216/early 235.
Jerry
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#79675 07/08/2007 7:12 AM | Joined: Nov 2001 Posts: 1,519 'Bolter | | 'Bolter Joined: Nov 2001 Posts: 1,519 | Hotrod Lincoln,4on the floor,and 3B are right on!!!
Youd be better off all the way around to go with a later model 235,,,,over and done. Quick and simple.
But,,,in answer to your original question,yes,it can be done. But spend the extra $$ toward another part of your truck. Youll be glad you did.
Marty | | |
#79676 07/08/2007 4:59 PM | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | I have one of these converted splash 235s running in my 47 coupe. Has a later full pressure crank, and it takes some machine work to the old block to accept the later crank plus mods to oil passages. However the downside it's a low compression motor only about 6.5 to one plus milling the head on this motor is very expensive as you need to sink in intake valves etc etc.
As stated by the guys above the pressure 235s and 261s are an easy swap. I'm thinking about making the leap to the more modern 250/292 in my old flatbed, with an automatic behind, SWEET! | | |
#79677 07/08/2007 6:12 PM | Joined: Sep 2002 Posts: 158 knuckle head | | knuckle head Joined: Sep 2002 Posts: 158 | You can fit a 216 valve cover on a later 235-261 using the 261 hold down studs.If you carefully glue the gasket to the cover,it won't leak. Need a full oil pressure conversion on a 216? got money to spend? If it's important to you,see these guys Pressure conversion | | |
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