[DeTomaso] cleveland oiling

[Rod Kunishige]

Justin,
My 351C starved the main bearings on a LV track run proves a design flaw.  
 
Pls consider using an old Chevy trick on your 351C documented in "Cheverolet Power" book 5th edition 1984 from GM Service.  Ample oil flow is supplied the V6 chevys through grooving the Main Bearing Bores with a .125 groove to retain some oil at the block side - page 1-6.  The top bearing is drilled with 4 additonal .125 holes to allow more oil to drop into the mains.  Simply, a reservoir of additional oil remains above to feed each main.
 
Also, check page 3-11 to drill an oil hole for connecting rods.
 
Your engine builder probably already has experience with this procedure but has not applied it to the poorly designed oil system found in the 351C.
 
My view is that this would not hurt the block but may be a better answer than "supplementary" oiling systems.
 
Be sure to cross drill the crank too.
 
Remember these are words from a non-expert and no warranty is expressed or implied.
 
Rod
 
Message: 3Date: Mon, 5 May 2008 05:10:45 -0700From: Justin Greisberg <justingreisberg at hotmail.com>Subject: [DeTomaso] cleveland oilingTo: <detomaso at list.realbig.com>Message-ID: <BLU117-W16C72A4CEAB0C0C969DF6DA8D70 at phx.gbl>Content-Type: text/plain; charset="iso-8859-1"  I am about to give my short block to the machine shop. I am making a serious street rebuild, and am confused about the best oiling mods. I have been following on the cleveland forum, but it seems hard to get any straight answers/ I know that oiling mods are of questionable value for street motors, but they are cheap and probably can not hurt if DONE CORRECTLY. 1. I plan to put the moroso oil restrictors in. Should I leave out number 1 so as not to minimize oil to distributor gear?? 2. I plan to leave out restrictor to lifter valley since I will be using hydraulic roller lifters/ 3. I will add external oil line because it is so easy to do. 4. I will use full grooved main bearings to optimize oil. Please help answer number 1. thanks- justin
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