12 Valve Engine and Drivetrain Talk about the 12V engine and drivetrain here. This is for 1994-1998.5 engine and drivetrain discussion only.

Differences between the diff. 12v's!!! Need info.

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Old 12-05-2006, 02:10 PM
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Differences between the diff. 12v's!!! Need info.

Is an early 12v (like a 89) interchangeable with a newer one (a '97)????

My buddy is wanting to do this.

What are all the differences:
compression
lp
timing cover
head
block

and anythings else.

He will be putting a p-pump on it. He just needs to know if everything else is the same as a newer one.

anything?
Old 12-05-2006, 02:12 PM
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I'm all ears too????
Old 12-05-2006, 02:28 PM
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All he will be replacing is the BLOCK DOWN. DOnt ask me why he just is. LOL

I know the compression for the 94-98 is 17.5:1 but is it the same for the early 12v?
Old 12-06-2006, 04:24 PM
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anyone................?

are the early non-intercooled 12v interchangeable with a newer intercooled one???
a motor out of a 89 in a truck that had a 96 with an intercooler.
Old 12-06-2006, 06:44 PM
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Maybe this has what you're looking for
Engine evolution - changes by year
http://dodgeram.org/tech/dsl/Facts/epa_changes.htm
Old 12-07-2006, 08:16 AM
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Thaks Infidel!! You rule!!
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