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Old 05-06-2011, 08:57 PM   #1
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Bore out a 289

How hard is it to bore out a 289 and how much $ would I have to put into it?
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Old 05-06-2011, 09:04 PM   #2
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Re: Bore out a 289

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Originally Posted by Sinclairstation View Post
How hard is it to bore out a 289 and how much $ would I have to put into it?
just as hard as any motor. you have to dissasimble the whole engine and get it bored. here in texas you can get it done for under 200. you will need new pistons, rings, and you might as well change all the bearings in the motor. im gonna say you will spend around a grand. what you want to bore it for?
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Old 05-07-2011, 02:38 PM   #3
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You can find a good 302 motor real cheap and bore it for a 347 stroker
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Old 05-07-2011, 06:12 PM   #4
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Well me and my friend are going to start working on it this summer and take out the motor to clean it up and he said we could bore it out then but I could find a 302, that way I could still drive it this summer thanks for the help.
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Old 05-07-2011, 06:16 PM   #5
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Re: Bore out a 289

what year car is it going into
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Old 05-07-2011, 09:17 PM   #6
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66 coupe there is so much I want to do to it it's going to take forever
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Old 05-07-2011, 10:33 PM   #7
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Ok how do I put a profile pic on my account after I created it and you can see my car
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Old 05-08-2011, 03:57 AM   #8
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Iam still working on my 66 coupe, I pulled the motor then started fixing rust from the front working way to trunk. I replaced battery apron, radiator support, an cross member. Just got last few front suspension parts then its back to finishing floor pans. I found a 88 mustang hr motor, tore it down to block an took to machine shop to clean an bore an I'll be clearancing it this wk for my rods. Good luck an holla if you need anything.
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Old 05-09-2011, 09:30 AM   #9
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It is pretty easy to have your 289 bored. I assume yours is smoking due to poor ring seal. You can tear down the block in an afternoon. Keep your lifters separated and marked or get a cam kit. Have the block bored and new cam bearings at a machine shop, around $200. I would have them put the new pistons on the rods. They will want to check the crank and rods. They may machine them back to round. You can easily install the other bearings during assembly.
I bought a book and built mine last summer. You will need a torque wrench and go slow filing the rings. I spent just under $1000. I used all quality parts. I took a 70 302 and bored it .03. Then put on my 66 289 heads etc. A 302 is a better block to stroke as the piston walls are shorter in a 289. Stroking a motor involves a different crank, rods and pistons.
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