S38 Head bolt onto M30?

[Robin-535im]

Assuming the intake and exhaust are carried over, can an S38 head be bolted onto an M30 short block?

[BillionPa]

thats a really interesting question.

would you be putting the intake and throttle bodies on there too if it did?

[Robin-535im]

thats a really interesting question.

would you be putting the intake and throttle bodies on there too if it did?

A guy can dream, right? in theory... you'd have to use the m5 in/out because the inlet/outlet ports are double wide from the twin valves.

[angrypancake]

i've often wondered this myself. bump.

[rob101]

i've often wondered this myself. bump.

+1 bumpo

[The Bigfella]

So - assuming you made it work (I believe the block is different - something to do with the oil system) - the first time you gave it a rev in order to use the performance, a conrod would come out the side of the block.

[angrypancake]

the s38 in and of itself is just a bored m30, is it not? if the transmission from an m5 works with an m30 engine, then it seems like the head would bolt onto an m30, with minor mods

[The Bigfella]

I believe the limiting factor in relation to the rev limit is the big-end bolts - which, I gather are different.

[The Bigfella]

Just looking at realoem, the block is $1800 or so for a 535 and $4,100 for an M5 - connecting rods about $840 vs $2,800 - bigend bolts $5.80 vs $14.00 each. crankshaft is $1040 vs $2940. This doesn't necessarily mean they are different - but I wouldn't bet on them being the same.

[Brandon J]

The coolant and oil passages are different. Look at pictures of the head gasket to see.