Bare block protection?

[68Satellite440]

Hey guys,
Wanted to ask a question to the experienced guys, I just bought a ‘67 383 and ‘72 HP 440 blocks.
What is the best oil/grease/whatever to preserve these blocks from rust till I get around to building them?

I know WD40 is bad.
Ive been told grease or trans fluid.

Thanks for the help, -Pat.

 

[RemCharger]

I've been hosing them down with rust check.
The lubricant in the red can.
Holding up pretty damn good from what I can see

 

[493 Mike]

Be sure to bag the block. Air is your enemy.
Mike

 

[R413]

LPS-3 and a plastic bag closed up with no holes in it.

 

[zyzzyx]

Yes! LPS-3 is like a Cosmoline for long term storage. WD-40 will evaporate 100%.

 

[snakeoil24]

spray graphite

 

[hunt2elk]

Where are you guys buying LPS-3? Used to be in all the stores around here, but not anymore.

 

[zyzzyx]

I used to buy it through MSC when I was working and didn't have to pay for it! I think Grainger carries it.

 

[68Satellite440]

I used to buy it through MSC when I was working and didn't have to pay for it! I think Grainger carries it.

So this stuff good for spraying into all the bores and lifter galley? Then bag it up tight?
Is it a pain to clean out when ready to use block?

 

[zyzzyx]

No, just use Kerosene or Mineral Spirits. Keep the block/bag off of the concrete floor!
Good stuff!

 

[Aron Gleason]

Gibbs Lubricant will do the job

 

[71Paisley]

I didn't see it mentioned.
I heard it works well so before I put my block in a bag I hosed it down with Fluid Film .

 

[hunt2elk]

I didn't see it mentioned.
I heard it works well so before I put my block in a bag I hosed it down with Fluid Film .

View attachment 1569209

That is the stuff I ended up buying since LPS-3 is not sold around here anymore. It has very good reviews. I coated a couple of engine blocks with it as well, but less than a year ago, so don't know how well it will work yet.

 

[Moparfever65]

I second Gibbs lubricant. Lasts a long time. I heard guys use it to protect bare metal rat rods, so I picked some up for around the shop.

 

[c.moo]

Bought LPS-3 at ACE hardware store couple days ago ,had a 7 dollar ace hardware reward card , save 7 bucks . Can get it from Amazon to ,cost more than Ace hareware.

 

[oldbee]

For my money——Fluid Film. Stuff just works.

 

[Geoff 2]

Auto trans fluid. Doesn't dry out & penetrates everywhere, unlike solids such as grease. Next time you change your auto trans fluid, keep some for rust proofing. Cost zero.