5.8L EFI differences

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Jan 21, 2012 | 03:18 PM

bremen242

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From: GANS

5.8L EFI differences

I am getting ready to convert my older 351W from a carb to a stock EFI system from a newer F150.

I have most of the pulleys and accessories what not from an '89.

I was planning to grab the upper & lower intake and as many parts from the same truck.

I want to grab a harness and computer. However, I want to grab the harness from one of the newer years that only has one fuel pump.

Any one remember what year went from a low pressure in tank lift pump with a high pressure pump on the frame rail to just the one high pressure pump in the tank?

Jan 21, 2012 | 03:19 PM

Blue Rebel

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From: Cottage Grove, WI

I believe it was 90. My 89 5.8 has the 2 pump system, but i want to say my 90 5.0 did not. BUT its been 10 years since ive had that truck, so im not 100% sure

Jan 21, 2012 | 03:32 PM

bremen242

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From: GANS

Quote:

Originally Posted by Blue Rebel

I believe it was 90. My 89 5.8 has the 2 pump system, but i want to say my 90 5.0 did not. BUT its been 10 years since ive had that truck, so im not 100% sure

That is good.. there are more 87-91 trucks in the junk yard then 92 and up.

I just have to get all the emissions related parts with the conversions..

Jan 21, 2012 | 04:30 PM

SCRebel

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From: Conway, South Carolina

Quote:

Originally Posted by Blue Rebel

I believe it was 90. My 89 5.8 has the 2 pump system, but i want to say my 90 5.0 did not. BUT its been 10 years since ive had that truck, so im not 100% sure

Yeah, it was 1990.