I have a 94 LT1 in my 55 1st with elect fan/shroud - went out the left inner
fender with stock ( Caprice ) 90 deg. rubber elbow off throttle body - MAF
sensor - a rubber straight from the wrecking yard - plastic 90 deg. from
plumbing supply into fabricated metal box ( with cone filter ) - through
radiator support with 2x8x2 belled duct from Caprice ( never been on the
road but looks ok ). Can send pictures if interested.
I'm a retired tooling engineer - getting your foam out could be a real
problem. I know a company that makes air ducts for Boeing. They make a 1/4''
thick plaster form of the inside of the duct with support extensions on
ends - lay up the fiberglass over it - set up - break out the plaster.
You should be able to do similar - add ends on your foam to support it while
you lay up the fiberglass ( being able to turn the foam will greatly assist
fiberglass lay up ) - cut up your foam & reattach as slightly as possible
allowing assistance for removal - seal the outside surface with aluminum
foil as smoothly as possible - coat the aluminum foil with a few coats of
car wax removing excess - lay up the fiberglass noting where to stop the
duct allowing cutting to exact length later. Can furnish a sketch if
Hope this helps,
55 1st 5 window P U
----- Original Message -----
Sent: Monday, May 03, 2010 4:22 AM
Subject: [Oletrucks] Fiberglass Question
> Please provide insight on how to build a fiberglass cold air intake for my
> There is little room to the sides of the LT1 throttle body for an intake.
> Therefore, I must turn the intake up while fishing it under the serpantine
> belt and behind the electric fan. I have a form made out of florists foam
> (dense green stuff). Can I lay the glass right over the foam or should I
> some sort of release agent in between. This is my first ever attempt at
> fiberglass and your wisdom is greatly appreciated.
> Thanks in advance,
> Rick Kremer
> 54 5 window - on the road but not happy
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