- Another member asked some questions about the intake & exhaust that I'm
running on my 235 Chevy. I thought others in the group might also be
interested. -
I couldn't find the Clifford number on their website. They only have one
manifold, which handles a 2 barrel or a four barrel. The manifold is set up
with a standard plenum and uses adapters for either carb. I think they
provide one adapter of your choice.
I started with the intake and a small throat Rochester 2 barrel. There was
too much air speed loss and the engine would dog off the line. I then used
a large Rochester 2 barrel with much better results.
I then added the split exhaust manifolds, and tinkered with them for a
while.
The exhaust manifolds are "Strip" type Fenton dual exhaust manifolds. They
were produced in the 50's for that extra power. I think the fit 216-261.
Mine are marked "235", which was the most common engine to be hopped up.
There was also a "Street" version that had a heat riser to warm the intake
manifold. The street version is VERY uncommon. I didn't have too many
problems with the intake being cold as the aluminum heats faster than the
cast iron intake did. I did have a water heating plate attached to the
intake after the headers were added. I removed it later. I heard that
somebody is reproducing the Fentons, but I don't have any more info than
that.
If I get a chance this weekend, I'll try to get some pictures posted.
- Additional notes:
1. The cam was the last thing I changed on the engine.
2. The oil filter system on my engine has been changed to a full flow
system, similar to the 261. In stead of the usual 50K miles between
rebuilds I got to 108K. I had to rebuild the engine because I broke an
exhaust valve. During teardown I found the cylinder wear to be .001-.002
total. I was able to have the one cylinder sleeved, new pistons, one rod,
new bearings and gaskets, and ALL the valves replaced, and was back on the
road.
3. I'm a little out of your date range. I've got a 1962 C-10 panel.
Happy trucking!
James P. Hargreaves
925.246.2657, DSN 350-2657
"Don't go around saying the world owes you a living. The world owes you
nothing. It was here first."
--Mark Twain
-----Original Message-----
From: 237459N@knotes.kodak.com [mailto:237459N@knotes.kodak.com]
Sent: Thursday, December 07, 2000 9:39 AM
To: HargreavesJP@concord.navy.mil
Subject: 235/clifford intake
From: W P. Fricke
What specific model Clifford intake are you running? I have a stock 235
that I want to upgrade to a more performance minded version. I've been on
the dual carb path but haven't purchased anything yet. Still researching so
your note was timely. Can I get away with doing the intake, carb and
exhaust without touching the cam yet? Lastly, did you have a shop make the
dual exhaust or did you find one off the shelf?
thanks in advance,
Patrick
'53 5-window 3100 4-speed granny
(See attached file: left front2.JPG)
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