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4.0L & 2.9L ?????s
- Thread starter STX1992
- Start date
7.5L_STX
Well-Known Member
- Joined
- Feb 20, 2008
- Messages
- 2,266
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- 34
- Vehicle Year
- 1989
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- Automatic
i believe the 2.9 and 4.0 are based off of the same bloce, but im not sure if its true, and idk where i heard it from either.
Downey
Well-Known Member
http://www.therangerstation.com/tech_library/40rebuild.htm
read the first couple paragraphs there might help
read the first couple paragraphs there might help
- Joined
- Jun 1, 2001
- Messages
- 7,897
- Age
- 64
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- 1987... sorta
- Transmission
- Manual
Making the 2.9 into a 4.0 is a lot more like making a 302 into a 351.
Like the 351Windsor the deckheight was raised
On a 351Windsor the deckheight is raised by 1.2" Vs a 302.
On a 4.0 the deckheight is raised by 20mm (0.8")
The block oil pan rails are Wider on the 4.0 to clear the
crank counterweights.
yeah the 4.0 is "decended" from the 2.9, but it's a "child", not a "Brother"
AD
Like the 351Windsor the deckheight was raised
On a 351Windsor the deckheight is raised by 1.2" Vs a 302.
On a 4.0 the deckheight is raised by 20mm (0.8")
The block oil pan rails are Wider on the 4.0 to clear the
crank counterweights.
yeah the 4.0 is "decended" from the 2.9, but it's a "child", not a "Brother"
AD
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