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Originally Posted by tjts1
What are you saving exactly? Weight? Fuel economy? I'm sorry but the fiat V6 is both lighter and more fuel efficient than the ancient 4BT. Theres about 30 years of development between the 2 engines.
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The 4BT, in spite of being heavier and older, is not exactly what I would call a guzzler, not even comparing to the new V6. Some owners of 4BT-swapped trucks usually claim mileages from mid-20's in city to 30 in highway, even using outdated 4-speed automatic transmissions.
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If you're dyeing for an inline engine Ford is putting 3.2 i5 from the new Transit in the F150. Same engine that replaced the 4BT in brazil.
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The 3.2L inline-5 didn't actually replace the 4BT in Brazil. The F250, F350 and F550 were simply phased-out due to the stricter emission laws that started to be enforced in the past year. Both the F350 and F550 used a 141hp version of the 4BT until a detuned 120hp version in 2005 due to emissions, but was still mechanically-injected. Now the engines should run either with EGR, then requiring low-sulphur Diesel fuel which is still not so easily available in the countryside or to use the urea injection, which demanded EFI with the OBD-II platform to automatically detune the engine when it runs out of urea for more than 48 hours.