whats the best way to upgrade my stock 3.0cs motor

[aearch]

anyone have parts and ideas on going to a 3.3 or 3.5 i want to keep
my daul weber carbs for simplicity.
thanks
alan

 

[x_atlas0]

To make things simpler, you could use a 3.5 short block, that way you can keep your original head/weber setup. You may have to open up the head a little more to allow for the bigger pistons, though. You will also have to rejet the webers, more than likely.

 

[velocewest]

Remember, prior to the m30b35 used in late e24's, e34's and e32's, all M30 heads have identical intake and exhaust passages, valves and combustion chambers, regardless of displacement -- 2.5 to 3.5, all the same.

 

[x_atlas0]

You are correct, I just figure'd he'd go for a B35 head, so you get the better valves.