Update on 216 to 261 engine switch

[Bob Carriere]

Phil

When considering the location for the oil filters.... think of.....

a higher location may.... over a long period of sitting cause the oil to syphon back....

..a higher location as per the original location will encounter more heat from the engine and less air flow than lower in the frame....

.... less messy to service....

... on the plus side..... the higher location was adopted over the early lower frame location (see cab 11/12 service bulleting) to capture the engine heat and prevent water condensation the the filter...

Personally I am more concerned with potential cooling in the frame location.

Remote cast aluminium double spin on filters are avaialble from Fram for hot rodders and racers.... paid $20 for mine at a flea market.... with new filters.

There is / was an aluminium sleeve witih fins all around that used to be sold as an afetr market device.... almost like a radiator heat sink...... would slip over the PH 8 filters and held in place by one cap screw to tighten the sleeve around the filter.

Can seem to find them anymore... may have to search old Ebay again.

Before you spend to much time on the original 261 head check the other engine you have to see if you do not have the more desireable XXX848 head.

When rebuilding ......caution... the complete rocker arms assembly are getting very hard to find..... and remember the 235 and 261 assembly are interchangeable.......

I have a 1959 GM shop manual .... which I can reference or scan the engine section for you.....

The good thing about you working on the 261..... is that at the speed you work...... you will have ironned out all the kinks for fitting the engine in the CMP before I get to that step with mine..... for this I am eternally thankful........ hahaha

What will you use for carb...??? mighe be able to help you out..

Bob