351w build...
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Senior User
Joined: Mar 2004
Posts: 131
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From: Mn
351w build...
i want tobuild a 351w efi, for my 4x4 e-250, i plan to use the e40d trans, and iwant solid torqe for towing, and good mpg (is 15mph out of the question?) i have the intake, throttle body, injectors and rails from a 96 bronco. im hopin for something along the lines of 300hp and 400lbs of torqe, i have 2 engines to choose from one is a 69 351w v4 witch is in the van now and has a slight rod knock and a 78 351w 2v what im wonderin mostly about is heads are the 69 4v heads better then thoose new cheap ironheads they come out with a few years back the ones made for explorer 5.0's? so any build recipes would be great thanks
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
I hope those intake parts are from a 5.8 bronco otherwise they won't fit.
Of the 2 motors you have the '69 is better, but the heads will need to be reworked for unleaded fuel. The GT40 or Explorer heads are better though and have more potential when ported. My combo prouces the numbers you want(on paper), and gets 14-15mpg combined, 12-13 cty, 17-18 hwy. You'll need SEFI to get the milage I think, nobody else here has reported hwy milage I see so I'm betting it's a factor. Your tranny will pose a problem, you'll need a stand-alone controller for it to run the Mustang SEFI computer, or you'll have to find a more rare F150 mass air computer.
Of the 2 motors you have the '69 is better, but the heads will need to be reworked for unleaded fuel. The GT40 or Explorer heads are better though and have more potential when ported. My combo prouces the numbers you want(on paper), and gets 14-15mpg combined, 12-13 cty, 17-18 hwy. You'll need SEFI to get the milage I think, nobody else here has reported hwy milage I see so I'm betting it's a factor. Your tranny will pose a problem, you'll need a stand-alone controller for it to run the Mustang SEFI computer, or you'll have to find a more rare F150 mass air computer.
Elder User
Joined: Apr 2004
Posts: 768
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From: Oromocto NB
Originally Posted by Conanski
Yes the Broncos and heavy truck got it too, not sure abut the E series vans.
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Hotshot
Joined: Jul 2002
Posts: 14,285
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From: Bend,OR
go to www.fordfuelinjection.com and search on that site. there is a link there that will take you to a place that makes mass air kits for a good price and the quality is top notch.
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