A fair amount to those of us in the US. 531's are rare at best in the states. If you're going to remain N/A, a BCP (big coolant passages) 405 is available for cheap cheap, and is fine except for the coolant passage problem. Header is probably a few hundred, unless you feel like building it yourself.bweber wrote:Hi Andreas,
I like the recommendations that you made above. I'm thinking about buying a pristine 1990 740 GL but would love to have a little more power than 114hp. I know nothing about mods...how much would your list above cost?
Thanks!
Brook
Figure a good weekend to install, assuming you've done head swaps and what-not before, otherwise a fair bit longer.
Budget a grand, and be prepared to pass that by a fair amount depending upon parts availability and how long you're willing to wait around for the best deals.
