Hi Guys....

I've got a classic 32ft 77 Dodge Flagship Motorhome in excellent shape with only 17K miles on the clock... unfortunatly it's powered by a gas sucking 440-4 that cripples my ability to take it out of the state.

I snagged a 1990 Isuzu NPR with a Remanufactured turbo 4BD1T engine from a company I worked at recently.. and was looking to do a transplant...

I was figuring on using the Isuzu Engine and tranny and keep the original Rockwell 4.88 geared rearend in the Dodge.

The 4BD1T has 121 hp @ 3000 rpm and 232 ft-lb @ 1800 rpm
The 440-4bbl has 230 HP @ 3600 & 350 Ft-lb @ 3200

I know the specs are no where clode to each other, but I'm not looking to drive this thing across country, I'm just looking to get it up to 55 for a couple hundred (pretty flat) miles every few months.

Any advice from those who have "been there/done that" welcome

Terry

 

 

I look forward to reading more about your conversion.

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Post pics if you can

 

x2


Howdy! Welcome to Diesel Bombers! Enjoy the site!

 

Welcome to the site Terry. I'm not sure if you would gain any MPGs by taking the big 440 out. Sounds like it's a decent size rig. You might need that big block to get her up to speed.