GM Engine Sizes (was Chevy engines)

[Jim Davies]

On Sun, 8 Nov 1998, Greg Hermann wrote:

> 
> But the GMC V-6's and V-12's were good, tough, torquey, durable motors in
> SI form--just goes to show that good gas motors do not usually make good
> diesels. See also IH's 537-605 derived DV-551. But, for the exception that
> proves the rule--try IH's 404-446 spark motor, which morphed into the
> 6.9-7.3 V-8 diesel!

The GMC V-6s were good motors and maybe the diesel version was okay, too.
The V-8 stretch job with its MMouse crank was a bit too much however.

The Intersmashable 404-446s were designed from the start a gas-diesel
engines which explains their success in Diesel service. Of course, the
Power Stroke 7.3 is a completely new design.