my zinno 325i m52b28 swap at Auto Heaven (Catuned)

[red_e30]

Hey guys pretty new here have been lurking around and reading all of the info that is on this site and decided it was time to do a thread on my swap.
the motor i decided to get was a m52b28 because it has more tourqe than the m50b25 but was still cheap :) brought it home and checked the compression and number 4 cylinder was dead and the rest of the cylinders had low compression, so was like fffuuuuuuuuuu and decided to do a full rebuild
didn't get any pictures of the tear down but this is what it looked like on the inside



valves were covered in this crap also, gotta love crappy gas.
cleaned the block and decided i wanted to piant the block blue :p


oh and the car its going in to my 89 325i zinno

[HR2L]

Ooooh like where this build is going. How much you pick your m52 up for? You pick up everything you need for the swap? Been debating on a few options and this is one of them. In for more pictures and first start! :)

GLWB!!! :)

[red_e30]

yea i pretty have everthing for the swap just a couple miscilaneous stuff left to get.
got the motor at a local pick n pull it was half off so i got it for dirt cheap i think it was
like 180 or something

[B83M533W]

Saw your car at Mercedes the other day. Very nice ride.

[red_e30]

dunno must of been somone else car has the motor out already, but thanks

[red_e30]

difference between s50/m52/m20 rods

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half way cleaned up

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and valves
carbon build up is such a PITA took me all day to clean them up
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[e30_neverstock]

:up: thats right tony, get er done.

[red_e30]

:up: thats right tony, get er done.

trying to :-)

[doug_e30]

ive been thinking of doing this swap too. looks good so far

[catuned]

She will be running soon. Not much left.. And Tony post up more pics. :)

[red_e30]

got the head all stripped down and cleaned
looks spotless lol :D
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got the crank all torqued down
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[MrNatural]

very nice!

[red_e30]

putting the pistons in
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halfway done
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cross hatches
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[red_e30]

very nice!

thanks

[red_e30]

ported and polished the head
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installing valve stem seals
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installed
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lapped valve on the right
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