Torque Converter

[HotDiggy]

What up GBody fam!

I'm droppin a Olds 455 in my cutty. I got a 700r transmission also. How do I know, what kind of torque converter I need to buy. N also what would be the price range? My bad if this a stupid question but this my first ol scoo build. I'm just trying to make sure I'm not investing in the wrong parts.

I'd appreciate any wisdom out there.

 

[olds307 and 403]

What camshaft and compression? I sure hope every possible upgrade was done to the 700R4. Any reason you didn't do a 2004R build?

 

[69hurstolds]

You'll probably need to get an adapter to bolt it up to the BOP bellhousing pattern. Far as I can recall, the 700 has a chevy only pattern. I think. Could be wrong.

 

[olds307 and 403]

You'll probably need to get an adapter to bolt it up to the BOP bellhousing pattern. Far as I can recall, the 700 has a chevy only pattern. I think. Could be wrong.

Absolutely. Get the heavier Transdapt bellhousing adapter.

 

[oldsofb]

A 700 or 200 behind a 455 is going to cost some $$ either in the build or the rebuild (after all that torque has it's way with it). If the 455 will be pretty much stock, you may be safe.

Hutch

 

[HotDiggy]

My bad fellas, its a 200r4 trans.

 

[olds307 and 403]

What cam is in the 455?

 

[69hurstolds]

Yup. A 200-4R definitely needs beefing up before you stick it behind a 455. Build it now to take the abuse or you’ll be pulling it later after you’ve been towed home. Even if it’s a stock 455 that 4R will scream for mercy if it’s not built for the extra torque.