I had a 77 VW bus and had the usual noise problem.

I used 1" thick Armaflex (it's a closed cell foam insulation used in the
refrigeration
industry) and covered the top of the engine (under the rubber mat) including
the
removable cover, and the area behind the rear seat all the way to the floor.

Wonder of wonders... I could hear my radio, at normal levels, on the freeway
again!

I don't know what it would cost. I believe it came in a 4ft wide roll. I just
used contact
cement, the same thing they use in refrigeration.

Tim Abney

Living on the north shore of Rt.66
In San Bernardino, CA
Home of the Route 66 Rendezvous
Always the 3rd weekend in September

5 days a week my body is a temple.
The other two, it's an amusement park.

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