SB aluminum 1 piece mains/girdle

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604B1duster

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Just saw this on FB, wanted to share.
Pretty cool

A451098B-4833-4735-9D31-68FEF187A7A1.png
 
It's cool, but would never work in a factory chassis. Oil pan moved WAY down
 
Thanks for sharing. With resto & R-blocks getting scarce & expensive, I've wondered about a setup like that to allow for a sturdier bottom end in a heavily boosted stock block setups. I see a "traditional type" pickup in the pic, wonder what the pan would look like? I assume the pan would be a custom job, that rear steer is out (no linkage clearance), and would need a notched & boxed K-frame. Or, maybe the right aftermarket K-frame & rack-and-pinion setup would take care of both of those concerns? I wish the pic extended down far enough to show the rear main and pump, (which I guess would require an extended oil pump driveshaft too). Either way, the engineering side of me would love to see more, if anyone has any more info. Thanks again for sharing!
 
Losing the top 3-4 inches.
I’m not sure but I would think factory K and rear steer might be possible
 
The problem with that is is it just adds weight. This stuff has been tested over and over and it does nothing. In fact it can be detrimental in that it moves the load around the block to where it shouldn’t be. Ritter is still making blocks. I’d save my money and buy that block before I ever did a girdle.
 
voodoo340 said:
Or, maybe the right aftermarket K-frame & rack-and-pinion setup would take care of both of those concerns?
Click to expand...

I have a Hughes main girdle on a Procharged 408 and use the Alter-k-tion you n my 70 ‘cuda. The very front of the oil pan is about a cunt hair from the rack. If you could move the engine back even 1/2” you would be GTG.
 
Would the aluminum girdle expand greater when at operating temperature (hotter than when machined) than the cast iron block?
 
go-fish said:
I have a Hughes main girdle on a Procharged 408 and use the Alter-k-tion you n my 70 ‘cuda. The very front of the oil pan is about a cunt hair from the rack. If you could move the engine back even 1/2” you would be GTG.
Click to expand...
i'm using the hughes girdle on my 426 stroker took a while to line up and install other than that no problem .
 
Nat said:
i'm using the hughes girdle on my 426 stroker took a while to line up and install other than that no problem .
Click to expand...
With Alter-k-tion or stock K?
 
Rat Bastid said:
The problem with that is is it just adds weight. This stuff has been tested over and over and it does nothing. In fact it can be detrimental in that it moves the load around the block to where it shouldn’t be. Ritter is still making blocks. I’d save my money and buy that block before I ever did a girdle.
Click to expand...

Not to mention power loss, right? Y block designs are known for challenges with controlling the oil slung off the crankshaft, and makes scrapers less effective as well. BBM and FE motor builders have talked about this quite a lot from what I've seen.
 
RustyRatRod said:
Right. So basically useless in pretty much anything but a rail.
Click to expand...

well I’m not so sure, I have seen these before on small block Chevy nitro fuel motors in the 60’s but they were cast aluminum.
 
Would one made of steel expand at the same rate as the cast iron block? My design would be a lot different, it would not have the rail around the pan. Been thinking of this for 6 months now.
 
Let me try again, the black is the girdle,
it’s possible that nothing would change,
Relatively speaking

BA8F9A0A-DCA9-4DC8-B948-526850E8F7BD.jpeg
 
604B1duster said:
Let me try again, the black is the girdle,
it’s possible that nothing would change,
Relatively speaking

View attachment 1715837741
Click to expand...

Typical American customer: if they can't buy it from summit, it doesn't exist LOL.

There's no reason a stock oil pan couldn't be modified to fit the girdle. Whether the girdle is a benefit is yet to be seen though. I would think the caps moving on the block would be a problem first. Then there's members running 9's with stock 360 blocks, and I've yet to see any pictures of blocks destroyed by making too much power. More than likely, the valvetrain will cause catastrophic engine failure long before the block does.

That said, a girdle design like that might enable one to feed oil to the mains in a way that helps prevent oil loss at the rods during the highest loads on the wristpins? I could see an application there, for sure.
 
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