This engine is also a Perkin 4.154 but only the ones made in about 84 and 85. It is not exactly the same as the Ranger
and Mazda diesel, but the gasket kit from Autozone works except the valve cover on the truck was aluminum
. I think it is just a slightly different bore and different pistons.
Anyway, there was a guy on one of the forums
a few weeks back that had 2 complete engines for sale
in AL somewhere. Perkins 4.154
but I think the older english
version, but would swap out on your mounts, etc but head would not fit.
Try a place called Yachts and Diesels in Ft. Lauderdale. Talk to Oliver a few years ago he had a few Mazda/ Perkins
on used generators and he may have a head around. Parts in general for these are expensive and hard to find in the US so might be better to consider a repower