Hi!

I have a 450R which I am very happy with.

Upgraded from Johnson V8 3.6 300 - Promax 300 SVS - 2 x 2.5 EFI SS - Verado 350 Sci - Verado 400R L6 and now 450R.

I wonder what is the performance difference between a V10 Verado 400R and a V8 450R? The V8 500R is too much both in money and hp for my ol Phantom.

I have this and 2 more seasons left on my warranty and I consider to downsize when the warranty expire (!)

Cheeers Toffen

It’s taller has 418hp and has a bigger LU. Not really an upgrade for your application. Wait for a 500R to come down and save up.

Hi!

If I am correct the Mercury Racing version has a Sportmaster LU of same size as 450R?

Cheeers Toffen

The propeller shaft is fatter. The 450R broke too many lower units.

Which one has 418HP?

epa cert on 400R is actually 414hp

400R has the same basic Sportmaster gearcase as the 450R, but I think it has a larger diameter upper driveshaft/splines and different waterpump.
The 500R has a completely new gearcase, with a larger diameter driveshaft, propshaft, and better waterpump.

Correct - I thought Toffen referred to the 500R.