What other type engine is compatible to fit into a 1987 Isuzu 2.6 pickup?

Hi you can fit an Isuzu 1.8 or 20l or 2.2 or 2.4 or 2.5 d or 2.8d

might have to change bell housing and clutch plate on different models depends on which side the starter fits .

I had quite a few conversions done on the isuzu like Ford v6 -Toyota 2c d. Fitted with adaptor plates made up to suite and a few changes