What exactly is the difference between an 1800cc VW Bus engine and a 1.8L 914 Engine?
 

Are the heads different. How about the cooling tin?

Thanks.

Its the same tin. The pistons are different and cam.

:confused:

I thought it was just the cam and the compression ratio... the bus had 7.3:1 vs. 8.6:1 on the 914 and *some* bus' came with carbs.. europe models as well as '74-'75 models with auto. trans. used L-Jetronic f.i., otherwise dual carbs....


the heads are the same... and I *thought* the pistons were the same(same dish) how were the pistons different?

http://tunacan.net/t4/reference/case.htm

I just found some info in Tom Wilson's book:

"Basically, the 1.7 - and - 1.8 liter 914 engines are very similar to their VW counterparts, differing only in air filter placement, sheet metal and exhaust valve material."

compression ratio on 1.8L 914 is still only like 7.6:1, so it's not much more than a bus. i bet if you check the part numbers of cam and pistons and probably heads too, the numbers for a bus and a 914 are the same. now there will be a difference maybe in the oil fill and the dipstick, at least there is with a vanagon, right off the top i don't know a bus 1.8.

Well not only does it have a differnt cam and crank. the block is also differnt. The 914 block is drilled out for the dip stick. adapting a bus case for a 914 is really easy though. the heads are also different as well. Not horribly. they have differnt compressions.
James

So, is Tom Wilson wrong? I don't know, that's why I'm askin'.

No i dont belive Tom Wilson is. There is just that other differance in the case. I know this becouse i but a bus engine in my 914 once.