320 engine facelift 327 conv. cost?

[goosiegander]

Have a complete 320 facelift engine with a crackered head what will it cost for all the bits for a 327 conversion and which parts would you recommend?

Sorry for restating a probably done to death subject...

Thanks, Goosie

[chu346]

Eta Block £50+
320i head £50+
Zone chip £70
325i cam £70
How much is your budget?

[oze30]

I have all the mechanical bits bar the head/sump for 150.

Thats eta block/pistons/rods
early 325 pistons/rods
eta crank.

then all you need is a 325 head, some engine decking and you got a high comp 2.7
OR

build it back up with the eta stuff and have low comp 2.7 perfect for FI

[chu346]

I have all the mechanical bits bar the head/sump for 150.

Just what you need goosiegander, take it.

build it back up with the eta stuff and have low comp 2.7 perfect for FI

that would still be high comp @9ish:1 for 325i head and 10.2:1 for 320i head if it's an eta block/pistons/rods.

[goosiegander]

what about boring the 2 litre block? then i can keep the engine number original
which was the plan really,
good stuff guys keep it coming!

[fowler]

rebore 320 block to 325 bore size then you can keep the original engine number
Phone A-Tech On 01959-534-718
he will give you some prices if you want to keep the original engine

[chu346]

Reboring can be done but isn't cheap and you need to think of your budget and the time it will take.

Reboring from a 320 to 325i size pistons will cost alot more than usual. Also if you going to rebore you need to be replacing things like bearings and the oil pump. I replaced everything, machined everything and the rebuilt the engine, it cost me well over a grand with a new waterpump, gasket set, cambelt, new piston rings, new rockers, rocker shafts and a sporty cam too. Don't forget fluids, coolant and plenty oil changes whilst running in, it all adds up. You will also need a 325i inlet and exhaust manifold, injectors and possibly exhaust system.

In addition to all the above you should get the head ported to allow for the flow requirements. Costs are £400 minimum, i'd budget £600 for this. Are you able to build the engine youself?

After adding all this up it sounds like it would be better to do a M50/M52 engine swap.