Roman,
The early cars (pre 68) did not have the 3 bolt flange on the manifold -
they had a circular fitting which did occasionally leak. Personally, I
would stick with stock if it is still serviceable.
Sid
>From: Roman Rist <ristguitars@yahoo.com>
>Reply-To: Roman Rist <ristguitars@yahoo.com>
>To: Ryan Roswell Bird <birdman@myrealbox.com>, datsun roadsters
><datsun-roadsters@autox.team.net>
>Subject: Re: Exhaust Manifold Question
>Date: Thu, 17 May 2001 20:00:49 -0700 (PDT)
>
>--- Ryan Roswell Bird <birdman@myrealbox.com> wrote:
>
> >
> > I have the stock exhaust manifold for my early 67 1600. It is in
> > good condition
>
>If it aint broke dont fix it!
>
>
> the other problem I've heard about, which I am most concerned about,
>is
> > the connection to the exhaust pipe. I don't want it to leak
>
>
>If it is properly tightened it shouldn't leak.
>as far as pulling the motor shouldn't make a difference if you go with
>the header or leave the stock manifold. Either way it is 3 bolts to
>connect it to the pipe.
>
>I have heard that the stock manifold "is" a "header", and that no
>performance gains are to be had by using a header. It is the bigger
>plumbing that is beneficial.
>
>I'm no guru, thats just what I heard.
>Roman
>Yahoo! Auctions - buy the things you want at great prices
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