2007 at the Hammond Barn

[Phil Waterman]

Originally posted by Paul Singleton
Bob, 261 engines used in Canadian pontiac cars have the same oiling system as the 235. ... The 261 truck engine in the U.S. does have a "full flow" oil filter and has much larger oil lines than engines with the bypass type filter. How large are the pipe plugs in the block? If I recall correctly the plugs on the U.S. type engine are 3/8 pipe because all the oil must flow through the filter. Maybe Phil Waterman could post a picture of one of his 261 engines so that we could see the difference.

Paul

Strange you should ask for a picture check out http://www.mapleleafup.org/forums/sh...&threadid=7879 from a while back. I posted just that picture.