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I picked this 351W up at the junk yard to replace a 302 in a 1995 F150. The engine is marked with the F4TE stamp. It came out of a 1995 E350 van. Will this engine work? I plan on keeping the 302 computer and the AODE 4R70W transmission in the truck.
I also has a question about the oil cooler. Can this be used in a truck, or do I need to just remove it and use a regular oil filter? I do not see how it would clear the engine cross member in a truck.
Also, the thermactor system on the 351W penetrates the back of the exhaust manifolds. On my 302 the thermactor system penetrates the back of the heads in the smog ports. My original plan was to install GT40 heads and long tube headers. Should I just keep the stock headers and use the thermactor system as is?
Yes you can remove the oil adapter and just mount it right on the block.
If you are installing longtubes then you're not keeping the stock cats so the whole air injection system serves no purpose and can be completely deleted.
You will need a 28oz AOD/4R70w flexplate for this combo, you cannot use the one from the 302(wrong balance) or one that may have come with the 5.8 as it will be for an E4OD which has the wrong offset.
Good luck with the swap.
Yep I removed that oil cooler and used an FL1A filter on the block instead of the FL820S that is spec'd for the 5.8L's in trucks. Use a lower radiator hose from a 302 truck, it won't have the cooler provisions.
If you are installing longtubes then you're not keeping the stock cats so the whole air injection system serves no purpose and can be completely deleted.
To keep the truck inspection legal, can I do this? Are the advantages of the long tube headers worth going this route?
Ok, doing a little research, it looks like to use the long tube headers, I will need to relocate the catalytic converters, which makes the truck not legal. I do need to replace the truck exhaust, as there really isn't one right now. Is there a legal exhaust solution that still improves performance?
Ok, doing a little research, it looks like to use the long tube headers, I will need to relocate the catalytic converters, which makes the truck not legal. I do need to replace the truck exhaust, as there really isn't one right now. Is there a legal exhaust solution that still improves performance?
I'd never heard that relocating the cats was illegal, my '96 has 3" high flow Cats & they never bat an eye at inspections. The system is 3" single from down pipe to the exit behind the R rear wheel. BTW your state may have a point where you no longer have to pass emissions, just safety. Here that is 24 years, so right now the '94s are good to go. 2 more years for my '96
Shorty Headers should work without having to relocate your cats (I think) Wont improve performance as much as long tubes , but should be a little better than stock manifolds.
Unless you're in California, relocating cats should be a non issue. Most states don't even have visual inspections, if it passes the sniffer, it passes the test.
What I am after is no hassles during inspection time. Keeping the pollution down is fine with me also, and the exhaust "stink". I know I personally hate to get behind an older, poorly maintained vehicle that has that bad exhaust smell. As I said, I'll see what my inspector says about it.
I will keep the EGR hook up, as some other threads indicate keeping this helps prevent engine knock and improves mileage. We will see about the thermactor system.
10-21-2018, 04:48 PM
