Ethan,
The information you were given is correct. There were two-carb intakes made
for the small-port GMC head, but no triples (McGurk and Howard made triple
manifolds but these were for the large-port 270 and 302). These were
intended for racing only - no heat - and the 270/302 were the GMC's most
racers used. Actually some models of the Howard and McGurk intakes will
accept up to 5 Stromberg 97 carbs.
I have to wonder why you want to run 3 carburetors, especially on an engine
like the 228 which has limited performance potential. 3 carbs provide
little, if any, performance increase for the street. Fuel mileage and
driveability will be poor, linkage is a major pain, and the rear carb will
hit the firewall and force you to run without the fender-to-firewall brace
on the driver's side. Not a good idea.
I would recommend you stay with a dual intake unless you are a masochist.
Or, if you really want some grunt from your GMC, replace the 228 with one of
it's larger brothers. 270 and 302 GMC's are (almost) a bolt-in replacement
for the 228. Exterior dimensions are the same, motor mounts and bellhousing
are interchangeable, water pumps & pulleys identical etc.
As for the vendor's offer to convert an Offy 3 x 1, this would not be a
difficult conversion, but for reasons mentioned above, why bother?
Jack Halton
51 GMC 1/2 ton
Winter Park FL
former 3-carb masochist
----- Original Message -----
From: <EDigler2@aol.com>
To: <oletrucks@autox.team.net>
Sent: Thursday, September 28, 2000 1:20 AM
Subject: [oletrucks] Please help my GMC and I!!!
> Hey guys I have found myself in a dilemma. I have been searching and
> searching for a triple intake manifold everywhere and up until about 30
min
> ago I was happy. I wrote to a company who specializes in 6cyl performance
> parts all I wrote was what I was looking for and if they had info on where
I
> could find it this is what they wrote.....
>
> Ethan -
> There is no such manifold available for the (small port) GMC 228 nor
> was there ever one made. We could, however, make one from a 3x1 Offy
> for a Chevy 216. Call to discuss. (810.739.9601) The office will be
> closed from Sept. 29th to October 9th. I will be at the big fall swap
> meet in Hershey, PA.....If this is true please tell me. For some reason I
> don't wanna believe him. I need your help. I am afraid that if I have
these
> guys do it I am gonna get it in the you know where...PRISON STYLE! Any
info
> you have I will listen.
> Thanks guys
>
> Ethan
> 49 GMC 100 W/O a triple Intake manifold :(
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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