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261 Oil Route
#59773 Thu Apr 27 2006 09:16 PM
Joined: Jan 2004
Posts: 222
N
Shop Shark
On a '62 261 full filtration engine, which hole/fitting on the block is oil in and which one is oil out for the filter lines? Thanks,
Steve O


1950 Chevy 3100
261, 4 speed
Purchased 1977

1964 Pontiac Lemans Convert
Re: 261 Oil Route
#59774 Thu Apr 27 2006 11:55 PM
Joined: Feb 2006
Posts: 112
D
Member
the one towards the front of motor is oil out to filter, the one toward back is oil in. thats how it is on mine but it was converted to full flow oiling.

Re: 261 Oil Route
#59775 Fri Apr 28 2006 12:28 AM
Joined: Oct 2001
Posts: 3,459
Extreme Gabster
Yes, front one is out, back is return.


Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic.
Re: 261 Oil Route
#59776 Fri Apr 28 2006 12:28 AM
Joined: Sep 2001
Posts: 30,152
ace skiver
Darin367,

You have a 1962 261 that was converted to full-flow? The 1958-1962 261 USA Chevrolet truck engines came with a full flow oil filtration system. Earlier 261s and all 216/235 engines came with bypass oil filter systems.

Nifty 50,

Here is a discussion of this matter. Here is a picture from a 1960 Shop Manual. There are direction-of-flow-arrows in the picture.

Tim


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engines are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: 261 Oil Route
#59777 Fri Apr 28 2006 05:07 AM
Joined: Feb 2006
Posts: 112
D
Member
guess i should have clarified that.. mines a 58. i've ran all the numbers it was made in feb. 58 and didn't have full flow.

Re: 261 Oil Route
#59778 Fri Apr 28 2006 05:09 AM
Joined: Apr 2006
Posts: 7
P
Junior Member
The oil filer is mounted on the intake manifold with a couple of u-bolts. I'm putting a Clifford intake and a 4 bbl on my 261 and have noticed that the Clifford intake comes much further off the block than the stock one did. So much so that I'm pretty sure the oil filter would run up against the steering column - if it was mounted on the new intake. Any comments as to alternative places to mount the oil filter would be appreciated.


1962 Pontiac Laurentian w/ factory 261 (Canada)
Re: 261 Oil Route
#59779 Fri Apr 28 2006 05:54 AM
Joined: Apr 2006
Posts: 7
P
Junior Member
Forget my last post - there's a technical article that pretty much nails it. I like this site!


1962 Pontiac Laurentian w/ factory 261 (Canada)

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