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Engine Oil Cooler in Rad???

Canadian Trailblazer

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I have a large rad from a diesel with an engine oil cooler in it. Would it be a good idea to drill and tap my new 383 somewhere to run oil to this cooler? Where does the oil come from/return to on a diesel? Do ya think it would be reliable as its a used rad? Any ideas/experience would be appreciated. Thanx /forums/images/graemlins/ears.gif /forums/images/graemlins/ears.gif /forums/images/graemlins/ears.gif
 

heavy4x4

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No need to drill and tap your engine anywhere. Find an oil-cooler adapter (a piece that bolts between the block and the oil filter) for a 350...there are a bunch out there.
 

R72K5

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yep, see them on vans and caprices and such that have towing and/or 9C1 packages, also 70s big 10 pickups, 80s c20 burbs, etc.
 

Steve_87K5

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I have a diesel rad hooked up to my 350 engine oil. Get the oil adaptor which goes onto the 350 block (after you remove the old oil filter fitting). The oil filter then screws onto the adaptor, and you get 2 oil ports available just above the oil filter. I bought my adaptor at GM dealer, wasn't too expensive.

The oil fittings on the rad are a UND thread. I couldn't find any proper fittings, so I silver-brazed some custom fittings from
3/4-18 UND #8 Weatherhead tubing nuts. I used small hydraulic system hoses with swivel fitting on one end (don't use hose clamps).
 

Canadian Trailblazer

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Thanx for all the good help, guys. Now that I know how to do it, do you think it is necessary? I have 14 FF (detroit), D60 (Electrac), 4.56's, 37" SSR's, a mild EFI 383ci,early NV4500, hydro steering and onboard air, and I am planning a trip IN AUGUST down to see y'all in Cali and maybe Baja if someone will take me. Would I be wasting my time going to the trouble to use this oil cooler?/forums/images/graemlins/ears.gif
 

Burt4x4

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Here is some info on cooling oil...
PG02-L1a.gif

Go here to read about this chart...
http://www.perma-cool.com/Catalog/Cat_page02.html

Good Luck! /forums/images/graemlins/thumb.gif
 
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