Did mercury ever make an engine called a bulldog or 500 bulldog that wasn't a 540 ?

Thanks in advance
Don

Not that I know of.

people often like to call their 500's ''bulldog''. I guess it sounds more powerfull with bulldog instead of 502's...

The made a 540 called a " Bulldog" and yes they were around 500 HP. They had a great short block which consisted of a GM Bowtie block, Carrillo H Beam Rods, JE Pistons, and a 4340 4.250 crank.

so if it's tagged bulldog...it is a 540?

Yes. Below are the specs:

Mercury HP 500 Bulldog Specifications

Propshaft Horsepower: 470/350
Full Throttle RPM Range: 4800-5200
Displacement (CID/CC): 540/8.9
Bore (inches/mm): 4.44/112.7
Stroke (in.)/(mm): 4.375/111.1
Compression Ratio: 8.6:1
Cylinders: V-8
Fuel Requirements: 87 Posted Octane

BL

Correct, great motor. Rated at 500 hp, but were a stronger running motor than the HP 500's. The 540 cubes pulled a lot harder on the bottom end and mid range.

Hey big D you're making me curious as to why the question?

They were a great motor to supercharge.
You ordered a Bulldog with #3's and SC it...you were in the mix.

Are Bull dog tall or short?
Thanks
Steve