<VV> Head musings

[cash case]

But aren't bore spacing problems dealt with on large bore engines? 
Couldn't the same or similar solution be applied?
Yes, oyou're correct, belt spacing could be an issue. However, I've 
seen in the Covrair Tech guide where some one designed a pulley that 
just might work?
-Cash


On Oct 29, 2004, at 7:36 PM, Tony Underwood wrote:

> At 04:17 hours 10/29/2004 -0500, cash case wrote:
>> I was introduced to a set of heads for a Porsche a few weeks ago. 
>> These
>> were 930's I believe 911's are similar.
>> I know I'll get flamed for this but thats ok.
>> These were overhead cam engines weren't they?
>> Wouldn't be it possible to  modify a block and move the head studs 
>> into
>> position to bolt these up and then create/modify an existing crank cam
>> belt drive gear from the Porsche to mount on the end of the crank
>> shaft.
>>
>> Ignore the cooling shroud questions for the moment-
>>
>> This seem dangerously easy to me. Has anyone tried this yet?
>>
>
>
> Humm...  there's bore spacing problems.  There are camshaft drive 
> problems,
> not much room to mount a belt gear on the crank to drive the camshafts.
> There's that rotation problem in that the Porsche engine runs in the
> opposite direction and existing Porsche cams wouldn't work.  There's 
> the
> compression problems in that the Porsche heads are deep and use
> hemispherical domed pistons which would  be a bit hard to find for the
> Vair.    Actually, this could likely be solved with custom ordered
> camshafts which would likely be kinda costly but certainly nothing a 
> decent
> cam maker couldn't cook up.   But pistons would be a problem as would 
> that
> bore spacing thing.
>
>
> tony..
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Cash Case, Art guy -
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