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Buick 263 Dual Carb Engine Mount Modification

This 263 was replacing a 248 in a '41.

It had two carbs and of course we wanted to keep them. We wanted to use the 263 motor mounts because it made for better balance and took a bunch of weight off the aluminum housed 5 speed. The good part is you can simply hang the motor and mounts on the engine, located it in the frame and bolt or weld them in place without spacers! But, when it came to mounting the dual carbs, there was an issue with clearance between the manifolds and the engine mount height. It had to be lowered.

Buick 2x2 engine mount doesn't fit

We decided that if the engine mount sat about the center of the 4 bolt holes that there would be nice clearance and allow us to use the original 4 mounting holes. First step wack the engine mount side.

Buick 263 engine mount cut Buick 263 engine mount pieces for welding Buick 263 engine mount pieces for welding Buick 263 engine mount pieces for welding

Here the mount is ready for tacking. There is no reason to turn the block part upside down, but I thought it might look better.

Buick 2x2 engine mount ready for welding

Here is the mount on the engine showing the clearance to the dual carburetor exhaust manifold.

Buick 2x2 engine mount installed Buick 263 engine mount for 2x2 carburation

After test fitting the exhaust tube, I decided to cut the shoulder off the mount to reduce interference. At this point, I would choose to lower the mount another 1/4", or as close to the lower bolts as I could feel comfortable, to allow for more pipe clearance.