Look at a Cummins 4BT or 4BTA, essentially 2/3 of a Dodge truck engine
http://www.4btswaps.com/forum/index.php

Probably your best choice for a small yet powerful diesel, any older or smaller and you will probably be better off with the 235.

A Diesel conversion will be a fair amount of work...

Grigg


•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-