Need ideas on changing engines..... - TCCoA Forums

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post #1 of 7 (permalink) Old 03-06-2017, 03:03 PM Thread Starter
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Red face Need ideas on changing engines.....

I have a '96 LX with a 4.6 it currently has 166,650 miles on it and actually still runs really well, but I know the day i going to come that I need to rebuild the engine or change it out. I am thinking of going old school and putting a 351W in it. Anyone else done this? I would really appreciate anyone' input and/or options. Thanks
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post #2 of 7 (permalink) Old 03-06-2017, 05:44 PM
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There's several threads on here about 351W swaps; biggest problem (well, two!) are a) it's a completely different bird (pardon the pun!) from the 4.6 in yours, so you're looking at a complete ECU change or delete; and b) due to the higher deck height, it won't easily fit under the stock hood.

Why not go 4V? It fits, it works, and there's a lot of those also.

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post #3 of 7 (permalink) Old 03-06-2017, 07:48 PM
No, Mr. Lemmywinks, No!!!

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post #4 of 7 (permalink) Old 03-06-2017, 08:16 PM
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4.6 SOHCs are one of the most long lasting engines on the road, it's highly unlikely that day will ever come for you.

351 is doable but you need a different trans and it won't clear the hood and they have no power unless you build them

-Matt
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post #5 of 7 (permalink) Old 03-06-2017, 09:07 PM
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The 4.6 SOHC is well known to be reliable beyond 300,000 if simple maintenance is performed (oil/coolant changes).

The 180,000 mile Explorer motor I am putting in still has visible cross hatching in the cylinder bores.

Use good oil, 5w30 or 0w30. Change it often so it doesn't sludge up, and the motor will be fine.

Want more power, PI swap it, port the heads, get aftermarket cams and headers and you'll have plenty of power.
If you want top end, 4v heads, or swap in a block from a Mark VIII to save yourself 80lbs.
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post #6 of 7 (permalink) Old 03-07-2017, 01:12 PM Thread Starter
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Thank you for the reply, I forgot about the height........ I'll look in the the 4V.

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Originally Posted by Woodman View Post
The 4.6 SOHC is well known to be reliable beyond 300,000 if simple maintenance is performed (oil/coolant changes).

The 180,000 mile Explorer motor I am putting in still has visible cross hatching in the cylinder bores.

Use good oil, 5w30 or 0w30. Change it often so it doesn't sludge up, and the motor will be fine.

Want more power, PI swap it, port the heads, get aftermarket cams and headers and you'll have plenty of power.
If you want top end, 4v heads, or swap in a block from a Mark VIII to save yourself 80lbs.
Well I am glad to hear that it is a good engine. I think maybe I am getting paranoid about the current mileage. The car has been well taken care of since I bought it brand new in 1995....though it is a 1996. Regular oil changes and maintenance. She is kept in the garage and still has great paint and like new interior. The only major work done was I had the suspension rebuilt last year and now she drives and feels like a new car. The only issue I have had is the dam heater core !!!!! been replaced 4 times for various reasons after the original one went out at 16 years.....currently back in the shop for the heater core due to electrolysis.... other than that it has been an excellent car.
I do like your suggestions on more power and will look into it. Thank again

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Originally Posted by XR7-4.6 View Post
4.6 SOHCs are one of the most long lasting engines on the road, it's highly unlikely that day will ever come for you.

351 is doable but you need a different trans and it won't clear the hood and they have no power unless you build them
Good to know about the 4.6....hopefully I will never have to replace it. I know out of all the cars I have owned over the years, this Bird has been the best. Thank you

Last edited by Rodeo Joe; 03-07-2017 at 05:39 PM. Reason: Merged posts
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post #7 of 7 (permalink) Old 03-07-2017, 02:03 PM
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The thing to do to keep the heater core trouble free is, first and foremost, spend the extra money and buy Ford, not aftermarket. To keep it long lasting flush out the coolant every few years, and add a ground strap from the core inlet or outlet to the engine or chassis(do it with the radiator as well) to prevent electrolysis.
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