Well at least you called me an F'n idiot respectfully... so, uh... thanks?   

I never claimed my way was "better" than yours or that you were doing it wrong so get off your high horse.  All the money you and others spend at machine shops... thank you... as manager of a shop that's been around 71 years I appreciate your support of the industry.  However, also as a guy who has been around the block a few times I have a clue about what I'm talking about from 1st hand experience, not just reading or talking to sales guys (which I also do but also have experience to take that all with a grain of salt).  It's the inexperienced guy that sees only black and white, right or wrong.  The true expert knows the shades of grey, and obviously that isn't you.

WD40 is fine for what he's doing for this particular application..

. Pull your panties up Joe never called you anything....,,wow


Sent from my iPhone using SoCal Jet Boats

Now children. ..

The only reason I would not use something like WD40 is because it is so thin and has a tendency to "dry".

Nor calling anyone an idiot,  just offering another prospective.

I use regular old 30wt air compressor oil and  add a little Marvel Mystery Oil at about a 24:1 ratio.

Why? Well because I was taught that way and the engine can sit for months without being fired and it will be fine. I don't always get my junk running right away.

Never once had an issue.

Play nice gent's.

BTW, I have heard the Ajax thing too. Makes me cringe.

Assuming that the motor will be up and running reasonably soon, I would not use anything approaching an automotive oil.   A  medium to  heavy oil will glaze immediately and actually slow down the rings and bore breaking in to one another. 

At least that is what I was taught by a national record holding motorcycle builder and another guy who used to build motors for Dick Landy and Summit Racing.   But I got no dog in this fight.   WD-40 is in no way a lube, instead it is a solvent.  Right concept but probably not the best choice.

haa wow I leave for two days and it's been a riot haha ok so for everyone s sake I decided to upgrade my rings and be extremely  attentive to every detail.  I bought the plasma moly rings from sealed power. I had a set of the vintage installed. Seeing the last time I did a bottom end was when I was 17 I wanted  to make sure this was right. I got my gaps at .022 top and .024 bottom filed deburr ed and installed perfectly. I've been building  cars and engine s since 14 and I know when a job feels good. BTW I saw a video on youtube where a guy was doing a 455 and he used w d 40. But after hearing all the arguments  here I have swapped that idea for a light coat of diesel oil lol now I just need to order my cam and oil pan plus misc and I'll be a happy guy. You guys rock haa

My sincere apologies to the OP for causing the negative direction that this thread has taken.

Chad, PM sent

Joe, you're a stand up guy that has my utmost respect.  We may have caused a little side track in the negative direction but at least we got a dialog going (trying to find the silver lining here... LOL ).  cheers