Update on 216 to 261 engine switch

[Alex Blair (RIP)]

Originally posted by Phil Waterman
Thanks Guys


Given the condition of the valve seats and valves I think I’ll take your advice and have the head done at the machine shop, replace all the valves. Before that though need to mic all the bearings only what to do this once per engine.

A wise move Phil..You will find any cracks and get a good head,once in a life time job..The bearing caps could be removed and the bearing to crank clearances checked with plastigage..
Here is a good link to read before you start and print out to keep handy..I know it is about Fords but it is a handy page none the less..

http://www.fast351.com/enginerebuild/index.htm

Pay close attention for the use of plastigage on page 4...

Keep us updated..
The last 261 I had was in my '56 pontiac,before I switched it out for a 265V8 with a 3/4 race Duntov cam...

I know you know what you are doing but even the guy that wrote the article claims he could rebuild his engine with his eyes closed likes to have his favourite rebuild book with him whan he is working..