[Duntov]

Not interested in starting a very tired 2 bolt versus 4 bolt discussion here but...

Does anyone know if a main cap girdle will fit okay with the OEM style chevy II oil pan?

To clarify, this is in regards to a 2 bolt SBC 350.

Thanks in advance

 

[Repointer1]

Haven't used one, not sure how common they are for SBC's. Don't recall any discussions about them on this site. They seem more common for some of the Ford stuff. I think you need to use studs with them though which will require a line hone. Mine is a 2 bolt I just studded the block and had it line honed. Figured I should be fine for 400/450 HP.

 

[CNC BLOCKS N/E]

Don't waste your money on a girdle its still a 2 bolt main, Call Kenny at Pro-gram Engineering he will have some good advice for you.

https://www.chevelles.com/forums/18-engine/38173-true-intentions-why-4-bolt-blocks-were-manufactured.html

 

[bracketchev70]

My experience was that the girdle doesn’t increase any clamping force on the mains and doesn’t really increase stability like a girdle in a Y block where the girdle is fastened into the pan rails. If you have to change fasteners then I would align hone the block and put studs in.

 

[fltinstructor]

^^^^What he said. :yes:

 

[Duntov]

roger - thanks for input

 

[wht73]

The 406 2 bolt main in my sig is studded with the appropriate machine work!
No girdle. :no:

 

[CNC BLOCKS N/E]

The 406 2 bolt main in my sig is studded with the appropriate machine work!
No girdle. :no:

Hard to compare a 2 bolt 400 center main cap to a 350 two bolt main cap

 

[wht73]

Carl, I only posted cause I saw 2 blt mains and studded.
I beat the crap out of my 2blt 355 for years.
Stock rotating assembly.
Now it's on topic!