3.3/ 3.4 engines

Dans · Post by **Dans** » Wed Jan 02, 2019 12:42 am

Hoping someone here can help....

which BMW engine was the Alpina B10/B3/B3S/RoadsterS engine based on, I think both 3.3 and 3.4 used the same base block.

T'internet is not very conclusive, some saying it's the Iron S52 and others that it's an Aluminium sleeved M52 with single Vanos, so, does anyone know which it is?

Sadly I haven't got one since parting with B3 touring #107 a few years ago, so I can't pop out to check!

thanks in advance!
Dan

Post by **Charles** » Wed Jan 02, 2019 2:46 pm

It's based on the US M3 Evo 3.0 litre engine with an iron block and single vanos, which is then bored out.

simon13 · Post by **simon13** » Wed Jan 02, 2019 9:26 pm

Its based on the S52B32 engine which was made for the USA spec e36 M3.

to us europeans its a big capacity M52 with a cast iron block instead of Ali

Dans · Post by **Dans** » Fri Jan 04, 2019 10:07 am

brilliant thanks both!

D