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what motor would be the cheapest and easiest motor to do a conversion in a 1988 s10 a cummins 4bt, think it would be to heavy for the IFS, or the 3.9 Isuzu
think it would be lighter and easier. What can you get a 3.9 isuzu for in good working order, and are there ways to turn the power up on these motors. This if
it get done will be a low budget build. I have some diesel knowledge and drive a 2006 chevy 2500HD Duramax , and love diesel and am looking at something to build for a daily drive that will be more economical. Thanks for the help.
 

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how much does the Isuzu 4b weigh?
Quite a lot, between 350 and 400kg.

Isuzu do a 4BC2 which is 3.3L, non turbo and slightly shorter than the 4BD1T. But I don't think it made it to the US. It was installed in the 3 ton NPR's, (chassis code NPR57).
 

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Did you ever drive one of these, Dougal? I've read that some of the smaller 4's were real slugs, but I've not read much about the 3.3.
 

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Did you ever drive one of these, Dougal? I've read that some of the smaller 4's were real slugs, but I've not read much about the 3.3.
Yeah I've done a lot of driving in one fitted with a flatdeck. It doesn't set the world on fire, but when empty (2500kg tare) is quite fun to drive and has been loaded up to the 8 ton mark occasionally.
There's no rev counter so I don't know what the gearing is, but it's fairly noisey at 100km/h.

Disgustingly reliable for 22 years, then for some reason a cam roller got chewed up. $200 worth of parts and it's still going strong.

I heard this engine didn't get to the US, they shoehorned 350 chevs and auto boxes in the same truck for that market.
 
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