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Old 03-13-2007, 07:40 PM   #1
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question on an engine swap

I am wondering what i will have to do to go from a 351W to a 429? I know the 70 came with a 429 in the boss but am not sure if the shock towers were positioned different? Im hoping all i need is different mounts

Thanks,

Kevin
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Old 03-16-2007, 12:45 PM   #2
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Re: question on an engine swap

anyone?
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Old 03-16-2007, 04:34 PM   #3
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Re: question on an engine swap

I believe the shock towers are the same. If i'm not mistaken, all you will need is the motormounts to go from a SBF to a 385 series block(429/460).
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Old 03-29-2007, 10:50 AM   #4
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Re: question on an engine swap

You'll need a bellhousing for a 429/460 if it's a standard tranny. Your 351 is a small block pattern if i'm correct.
Here is a nifty little site for you, RRS :: Classic Vintage Ford Mustang Disc Brake and Coil Over Strut Kit :: Vintage Rack and Pinion :: Shock Tower Notching Kit
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Old 11-11-2007, 05:34 PM   #5
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Re: question on an engine swap

Quote:
Originally Posted by 70MustangFB View Post
I am wondering what i will have to do to go from a 351W to a 429? I know the 70 came with a 429 in the boss but am not sure if the shock towers were positioned different? Im hoping all i need is different mounts
don:t do it a 429 is wide it will fit but manifolds will not.it will take headers that are not cheap;your firewall will have to be bent back one inch.you will need a trans,radiator,motormounts,radiatormounts,maybe a crossbar for transmissionmount.and the extra pounds will cause your shock towers to BRAKE,unless you do a lot to beaf it up.thats not all,you will do nothing but spin,all of your weight will be in the front of your car,I have been there.Put the money in your 351 itwill outrun any thing around if done right.
Thanks,

Kevin
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Old 11-20-2007, 05:23 PM   #6
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Re: question on an engine swap

/\ Wow, just wow... Talk about pretending to know what you are talking about and then not even knowing how to quote.... You do realize Ford started putting big block in mustangs from the FACTORY starting in 67 right? So why is he going to have to move the firewall in a car that the unibody is the EXACT same as one that came with a big block from the same year model.......

Plus, holy old post batman.... Everything thing will work fine, hell, they even make aftermarket headers now that BOLT on and aren't too big of a deal to mess with as far as reaching the spark plugs.

AGAIN PPL, PLEASE DO NOT SPEAK OF TOPICS YOU KNOW NOTHING ABOUT! sheesh
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Old 11-21-2007, 06:58 AM   #7
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Re: question on an engine swap

So how much did you know on your first post. I'm sure alot less then what you know now.
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Old 11-21-2007, 07:44 PM   #8
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Re: question on an engine swap

I do not waste my time on people like you,say by 482, you will never here from me again.
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Old 01-29-2008, 11:36 PM   #9
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Re: question on an engine swap

what a joke, this guy spams total bull**** and then runs away mad cause bullit called him out.... I'm giving credit to bullit, these are the types of guys that gave me sooooo many headaches when I first started out, back when I knew nothing, it was hard to know who to listen to, guys like this only greatly confuse things.

good deal catching it.
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Old 01-30-2008, 07:17 AM   #10
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Re: question on an engine swap

Running off new members. Way to promote the site, Brent would be proud.
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Old 04-05-2008, 10:06 PM   #11
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Re: question on an engine swap

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Originally Posted by bullitt482 View Post
/\ Wow, just wow... Talk about pretending to know what you are talking about and then not even knowing how to quote.... You do realize Ford started putting big block in mustangs from the FACTORY starting in 67 right? So why is he going to have to move the firewall in a car that the unibody is the EXACT same as one that came with a big block from the same year model.......

Plus, holy old post batman.... Everything thing will work fine, hell, they even make aftermarket headers now that BOLT on and aren't too big of a deal to mess with as far as reaching the spark plugs.

AGAIN PPL, PLEASE DO NOT SPEAK OF TOPICS YOU KNOW NOTHING ABOUT! sheesh
Just remember that the big block that came in '67 was a 390 S-code, not the 385-series 429/460. The Boss 429 was a totally different animal with huge heads and therefore the shock towers were heavily modified.

Crites Restoration Products has many of the parts you'd need for the swap. I have '67 fastback and a 460 that will be wedged into the engine bay when done. Using a 351W- based engine would save alot of headaches, weigh less, and give more transmission options, but I just want a monster engine, maybe a 514 by the time it's said and done.

One thing to consider is that even though the engine will fit in the engine bay, unless the shock towers are trimmed or eliminated by using a Mustang II type conversion, somthing as simple as changing the plugs might require lifting the engine from the mounts.

Good luck,
-Greg
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Old 04-06-2008, 07:01 AM   #12
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Re: question on an engine swap

When i had a 460 in my 69, i had headers with 2 1/8" primary's. Changing plugs was an all day afair.
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