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engine swap

rwalworth

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June 21, 2013
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Year, Model & Trim Level
1999 explorer
Can a 2005 (gen3) SOHC 4.0 engine be replaced with a1999 (gen2) engine? My good running 1999 Explorer was squashed like a bug by a falling tree. I bought a 2005, but it has low compression on one cylinder.
 
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imp

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West-Central AZ along the Colorado River
Year, Model & Trim Level
59 Ranchero F250 D'Line
Can a 2005 (gen3) SOHC 4.0 engine be replaced with a1999 (gen2) engine? My good running 1999 Explorer was squashed like a bug by a falling tree. I bought a 2005, but it has low compression on one cylinder.
@rwalworth
I should think so, so long as the '99 was not equipped with the overhead valve engine. Do not know when SOHC came along. Had a '99, and it was indeed the OHV. imp
 
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2Trux

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Albuquerque, NM
Year, Model & Trim Level
2005 Limited V8 4X4
I would think your 99 would need to also have a SOHC engine in it to do the swap.
 
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Tech By Trade

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Your mom's house
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07 Sport Trac
Any sohc will swap, just need to strip it to a long block and swap all the components from the old engine. 97 to 99 had both OHV and SOHC so make sure of which one your using.
 
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