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Re: 302 engine swap
In article <7IHAf.43620$0G.33894@dukeread10>, pkurtz2 <pkurtz2@cox.net>
wrote:
> <dtb1013@hotmail.com> wrote in message
> news:1134339966.211507.113340@g44g2000cwa.googlegroups.com...
> >I have a 1988 Mercury Grand Maarquis with 302 EFI engine thats in very
> > good condition. The AOD tranny went out in the Merc and I think the old
> > land barge is past its prime. At the same time I came across a 1985
> > F250 that has a bad 351W I can get for next to nothing.
> >
> > My question is how hard would it be to sawp the 302 efi into the 85
> > truck? Would I be better off carbing the 302 or willl the efi work with
> > the proper fuel pump setup? What else might i run into during this R
> > and R if I decided to do it.
> >
> > Any advice or help would be greatly appreciated. I have swapped many
> > engines from on form of vehicle to another in my life. I am just trying
> > to smooth some of the bumps before i get to them.
> >
> DTB,
> The first thing is to make sure all the sensors are basically the same, (ie
> Location, # and purpose), the next thing would be to take the ECM out of the
> Merc and install it in the F250. The second would be to make sure that your
> tranny will bolt up to the big block. Up to the 302 you are talking about
> small block, and from the 351 up is big block territory. So you might have
> to swap the C6 tranny for a C5. I know the 302 is not an option for the F250
> no matter what year. It just doesnt have the power to pull the heavy loads.
> The other thing you are going to run into if you carb the 302 is the
> electronic fuel pump for the 351, you will have to regulate the pressure
> down to about 7-10psi or get rid of the electronic all together and use a
> mechanical fuel pump. Fuel pumps for the EFI systems run at, I think,
> 40-50psi. Then you have the exhaust, with the change of block size, you have
> to probably change the exhaust crossover pipe to accomodate the smaller
> block size. Good luck on the engine swap..
> Pk
>
>
Wow. A 351 is a big block, ha? Maybe on your planet. The fact is
that the 351W is a tall-deck version of the 302, and has the same
bellhousing pattern.
Damn, the experts around here are on drugs.
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