Picked up a complete B204 for $300 to replace blown B205

[THEhomelessONE]

I know the prefered way is to swap the t7 205 head on the b204 block with b204 gasket, but what do I need to change to drop a complete b204 in? Also can I use a b204 oil pan? I can't remember but doesn't the b205 oil pan have a PCV fitting on it and the b204 doesn't? I was looking on ebay for a new pan and some list the 204 pan within b205 years so I'm confused now. They're only $100 vs $300+ for b205 pans.

[THEhomelessONE]

Can I use the 9-5 oil pan? They have the crankcase vent built it.

[THEhomelessONE]

Buhmpe

[BobSaabit]

The 205 pan does have a vent on it. Pan should match the head.

If you go with the 204 head, you will need the controls for a 204 engine like the MAP, IAC, BPC, etc and the ECU. Not sure how much the engine compartment wiring varies. Some of the hoses will need to be improvised and the vacuum controls redone. Might be a lot trips to the junkyard if you don't have a donor car there to work from. I would think it would be simpler to swap the head than to start changing all the control systems, but I think some folks have blazed a trail if you want to head the way of the 204 swap.

A 204 bottom with a 205 head is actually the ideal combination for durability and flow.

[grkguy89]

just use the B204 block, internals, and a B204 head gasket <----- VERY important

then everything else from your B205

the ECU will not like a complete B204 in there, unless you tune it afterwards


you have to use a B205 oil pan on a T7

[THEhomelessONE]

Cool thanks guys B205 head on B204 block with b204 HG got it, looks like I'll get an oil pan from pick n pull.