Can't decide?
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Can't decide?
I was going to turbo/rebuld my carbed 300 (1978) F250 Np 435. I now am looking at a 3.9 4bt cummins. I heard that they aren't that much heavier than a 460, so my truck should "hold" it just fine. I just can't decide. The 4bt can be modded just like the 5.9 so getting 250hp and 400ft/lbs out of the little guy should not be a problem reliably.
How does a 4bt fit in the 78 2wd chassis, would it be a large job like the 5.9
or is it relatively simple?
How much fab work would it require to put a 3.9 cummins in my 2wd f250?
would it be as "streetable" as a 225hp turboed 300?
will the 4bt in 250hp flavor distroy my running gear?
What year 4bts are the most desireable? can I put a 4bt infront of my np 435, and 4.56's, if i go 34" tires(265/75R19.5H) and a GV oD unit, and still run with traffic?
pros/ cons if I missed any???
Thanks
Dustin
How does a 4bt fit in the 78 2wd chassis, would it be a large job like the 5.9
or is it relatively simple?
How much fab work would it require to put a 3.9 cummins in my 2wd f250?
would it be as "streetable" as a 225hp turboed 300?
will the 4bt in 250hp flavor distroy my running gear?
What year 4bts are the most desireable? can I put a 4bt infront of my np 435, and 4.56's, if i go 34" tires(265/75R19.5H) and a GV oD unit, and still run with traffic?
pros/ cons if I missed any???
Thanks
Dustin
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Joined: Oct 2004
Posts: 289
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Is there an aftermarket "Turbo Kit" available for the 300 Six, or would you have to develop and fine-tune the system yourself? If there is a developed kit available, I would go with rebuilding and Turbo'ing the 300.
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