33 Coupe Engine Install 6
8/23/03
What I'm doing is getting ready to
port match the intake manifold to the intake gasket like I did to the head
earlier.
The first thing to do is put some red next to the ports and then lay the
gasket on and scribe some lines.
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I used some small clamps to hold the
gasket in place while making the lines. It was hard to line-up the
gasket on this manifold because the mounting holes are slotted instead
of being round. I placed the holes in the gasket in the middle of the
slot and clamped it down and then scribed the lines.
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This is what it looks like after
scribing the lines. Not much material would have to come out because the ports
are close to the right size already.
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This is a close-up of the scribed lines to
show you what I mean. The sides and top are the critical ones here but not
the bottom. The bottom is the one that you WANT to have a step (like a
jump on a ski slope) so the gas won't pool. The sides and top were so
close that I didn't do any work on them. Now these surfaces (top and
sides) are
different than the bottom because if you get a step here (the opposite
of the ski slope) that makes the air/fuel run into a wall or step, which
means things won't
flow correctly and will take away horsepower. Notice the slots in the
manifold where the bolts go. If I tightened things down and the manifold
moves causing it to have a step in the wrong direction, this would be a
bad thing. Well I can't have that so this will be close enough. BTW, the
distance you see here between the line and port (sides and top) are about
.050" (
less than 1/16 of an inch). The slot height and size of the bolt being
used is more than that so this is why I'm not removing any material.
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