whats the difference between a 3.2 and a 3.5 when it comes to making it a 4.0? - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
 
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post #1 of 6 (permalink) Old 03-05-2012, 04:24 AM Thread Starter
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whats the difference between a 3.2 and a 3.5 when it comes to making it a 4.0?

having a hard time finding a good 3.5 in the yard.
but i have no intentions on slaming it in i want to rebuild and stroke it.
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post #2 of 6 (permalink) Old 03-05-2012, 03:15 PM
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for what you want to do, you need a 3.5. the 3.2 is exactly the same, slightly different cams, but the problem is the 3.2 is a different bore... and these engines have cast iron cylinder sleeves.

but, you could end up with the first 3.6 ever built. actually a nice and square cylinder, 92 bore x 91 stroke. and you would avoid the issues with the pcm being able to handle the extra half liter of a 4.0
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post #3 of 6 (permalink) Old 03-06-2012, 07:59 AM
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You really need a 3.5 block to keep down the expense. The 3.5 block has the same bore as the 4.0 piston so you save money on not having the block bored. Of course you could go with a 4.00" bore and the 4.0L crank and make a 4.6L....that would be sweeet but pricey!
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post #4 of 6 (permalink) Old 04-03-2012, 02:43 PM Thread Starter
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Quote:
Originally Posted by dmondeac View Post
You really need a 3.5 block to keep down the expense. The 3.5 block has the same bore as the 4.0 piston so you save money on not having the block bored. Of course you could go with a 4.00" bore and the 4.0L crank and make a 4.6L....that would be sweeet but pricey!
im trying to follow and not lead. i need smart people like you to tell (dumb) people like me what to do.

I grasp the large strokes (pun intended) but some small details always throw monkey wrenches..

my poor baby's been sitting far too long she needs to roll on her own again.
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post #5 of 6 (permalink) Old 04-03-2012, 04:49 PM
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Then you need a decent 3.5L to serve as a base.
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post #6 of 6 (permalink) Old 04-07-2012, 08:47 PM
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Quote:
Originally Posted by dmondeac View Post
You really need a 3.5 block to keep down the expense. The 3.5 block has the same bore as the 4.0 piston so you save money on not having the block bored. Of course you could go with a 4.00" bore and the 4.0L crank and make a 4.6L....that would be sweeet but pricey!
My next experiment, with the block I have that has a scratched bore, I'm thinking of doing the 4 inch bore liners.
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