Xxx Stamped 302 Question

[dnbonds]

So im helping the guy rip apart my motor and he notices it's stamped with XXX in the valley. He says it's a stronger block made with more nickel than an average block. I searched it up and didn't find much on it. Anyone know anything special about these blocks?

Figured I'd start a thread in pursuit of knowledge instead of the average Taco thread/derailment lol.

 

[tannerc91gt]

Meh, it's debatable.
But there's really no difference.
@NIKwoaC studied up on it for a bit I believe

 

[GroverDill]

xxx is the standard everyday 5.0 block.

 

[revhead347]

There has been a lot of rumors spread about blocks. The XXX is the standard block. There were a few blocks cast in Mexico in 70s that had a higher nickel content. None of them are roller blocks. Some say they were stronger, some even go out of their way to get them. Most of the engine builders I have spoken say the same thing, all 2 bolt blocks are about the same, and there really isn't any advantage to buying one over another.

Kurt

 

[tannerc91gt]

If you type XXX into google, it will tell uou

 

[FoxMustangLvr]

If you type XXX into google, it will tell uou

I did as you said and I just got called into Human Resources. Be right back

 

[hoopty5.0]

Or just ask Vin Diesel.

 

[dnbonds]

I did as you said and I just got called into Human Resources. Be right back

That's not how it was worded when I liked it

 

[FoxMustangLvr]

Sorry, damn people editing posts

 

[madspeed]

Dislike already

 

[dnbonds]

Dislike already

What are you disliking? My XXX pronz engine thread?

 

[tamadrummer88]

Idk why people check out **** on their work computers. Use your phone. Much more convenient.

 

[90lxwhite]

Idk why people check out **** on their work computers. Use your phone. Much more convenient.

Who has work computers!?...

 

[dnbonds]

Discretely disable the monitoring software, run a VPN, and use Incognito Mode. Problem solved

Easier said than done though

 

[tamadrummer88]

Or use a proxy

 

[hoopty5.0]

OR... ya know, just don't be pulling one off at work....

I definitely caught my boss with pronz open on his computer on Monday. It was hilarious watching him scramble to minimize the window before he finally slammed the laptop shut.

 

[CarMichael Angelo]

shows what any of you know about reinforcement, and metallurgy.

Any 6th grade dropout knows that criss-crossing a pattern is gonna yeild a stronger end result.
So I offer it up for your consideration.....

XXX
or..........
(nothing)

That exact spot where the three x's are cast will definitely be stronger than another block without them.

Geeeze!!





And if was cast in Mexico

It would only have

Dos eckays.

 

[dnbonds]

 

[NIKwoaC]

All the roller 302 blocks are pretty much exactly the same, regardless of what letters are cast into them. Supposedly there is some rare roller block with thicker cylinder walls that Ford had designed for a supercharged application and then never supercharged it, but it's a moot point because the main cap/webbing was no different than a "normal" roller block, and that's where these things break anyway.

I had a virgin bore Mexican 302 block in my garage for about 2 weeks and then sold it off, and I still kick myself for not keeping it. They came with much thicker main caps and blind main bolt holes with a little more material in the main webbing than a roller 302. I can't speak to the differences in metallurgy (and I think most of that nickel content stuff is bogus rumor), but they are definitely beefier than roller blocks.