[V8] turbo v8

Nate Stuart newt at motorgeek.com
Mon Aug 29 17:33:57 EDT 2005

And due to that process you can't _just_ bore these motors out, they
either have to be sleeved, or have the cyl wall treatment reapplied(good
luck there). Sleeving gets tricky with a larger bore, you need enough
material between the cyl walls to support the sleeves press fit, while now
bowing the aluminum in the adjacent wall, or intruding on it's space. I
talked in great length about this with my local machine shop engine
builder guru and after we punched a pile of numbers he was only confident
in maintaining the 81mm bore when sleeving. Which is what I was after
anyway since that'd allow a set of non-elf crafted forged pistons to be

But I've yet to blow up my v8tt, so I haven't bothered getting one sleeved.

Take care,
'89 90v8ttq
'90 v8q

> I for certain am no expert on this matter Sean -
> but AFAIK, there are no OEM or aftermarket pistons available for the V8
> weather
> it be a 3.6 or 4.2. In fact, I don't think you can buy ANY bottom end
> parts for
> a V8. (meaning crank, bearings, rods or pistons)
> This is due to the "siliconized aluminium" cylinder bore. The pistons have
> a
> special plating that apparently only elves can apply deep in the Black
> Forest.
> Look before you leap with this motor.
> Dave
> Quoting spcole at mn.rr.com:
>> I know this might have already been discussed in the list but i have
>> been out of town for several weeks and heard that there was an on goin
>> discussion and had a proposal for debate. I am the owner of a 3.6L v8
>> out of a 90 V8 this is to be the new power plant for my 91 CQ i have
>> been looking and parts for this motor and it dawned on me that if the
>> 4.2 is the same casting only bored and stroked you could make a far
>> supior 4L that would be ideal for a twin turbo application.  does anyone
>> know if my crazy idea would work with a 3.6L with the 93mm crank and
>> 82.5mm pistons. this i belevie would be a far more durable motor then
>> the 4.2 and would be able to go to higher rpms.  if anyone knows if this
>> would work please let me know because i am seriosly lookin at buildin
>> this motor and runnin it normally aspirated for now but it would only
>> need a piston swap for the tt conversion and would most likly be running
>> a coil per cylinder igintion system from electromotive.

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