Questions about 3A swap.

[jdbubb at ix.netcom.com (Dan Bubb)]

I think the real knock about the 1.7 head is that it has small valves. 34mm intakes vs. 40mm IIRC
Even with a 1.8 head a 2.0 doesn't have much top end power due to the limited breathing. I'd bet a
1.7 head on a 2.0 block would make power to about 5000RPM.
I think it is actually the oil drain passages that are different, but in any case there would be
some adjustments needed, so as Patrick says the 1.8 head is easy to find and a straight bolt on.
Dan

----- Original Message -----
From: "ATS - Patrick Bureau" <ats@longcoeur.com>
To: <Kyscirocco@aol.com>; <scirocco-l@scirocco.org>
Sent: Thursday, May 20, 2004 12:01 AM
Subject: RE: Questions about 3A swap.


> >From what I understand reason no one mentions 1.7L head (which is actually a
> 1.6L head. Is for the same reason you don't use a 1.6L head with a 1.8L
> head, the water passages are not configured the same way.. aside from using
> some welding to block passages that is, and the other reason is that it
> probably cheaper and just as easy to find a 1.8L head (I have 3 myself).
>
>
> ATS - Patrick Bureau - Canuck in Texas
>
> -----Original Message-----
> From: scirocco-l-bounces@scirocco.org
> [mailto:scirocco-l-bounces@scirocco.org] On Behalf Of Kyscirocco@aol.com
> Sent: Wednesday, May 19, 2004 10:43 PM
> To: scirocco-l@scirocco.org
> Subject: Questions about 3A swap.
>
> After a bit of research I think the 2.0 3a swap would suit my purpose the
> best. My 81 will be 90% street and 10% track. I like that the power is
> available
> at a lower rpm than the other options. My questions are. Most of what I've
> read deals with using parts form a 1.8 JH. What if anything can I use from
> my
> existing 1.7. Head, Fuel injectors, sprockets, etc.   I know about needing a
>
> block off plate and using a 3a distributor and knock sensor. What can i
> expect to
> pay for a decent 3a engine? thanks
> Matt
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