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Stainless Hi-Tek manifolds
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liquidplummer
#1 Posted : Tuesday, February 23, 2010 8:37:00 AM(UTC)
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Greeting all! I'm new to this sight and am amazed at the great info available. I am thinking about replacing manifolds on our 37 sedan fb with twin 360's. Has anyone used the Hi-Tek stainless manifolds? Will there be a problem with dissimilar metals when using the ss manifolds. The gentleman at HiTek (Alan) claims I would see a sizable horsepower increase as well as an increase in fuel economy, but at 4 to 5 grand for both engines I can buy lots of sets of manifolds, elbows, etc as well as a lot of gas.
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fastjeff
#2 Posted : Tuesday, February 23, 2010 10:59:51 AM(UTC)
fastjeff

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I doubt if economy improvements would make up the difference in price, but they sure last a long time.

Jeff
"...reality is not nearly as lovely as the world of Liberal Land. No wonder so many people want to go there." - Tom Sowell
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pfhlaw
#3 Posted : Wednesday, February 24, 2010 8:49:51 AM(UTC)
pfhlaw

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We would all love to have stainless manifolds and risers but I think they are a luxury in fresh water where you boat.
Cast iron lasts a long time in fresh water. Mine are original and are almost 30 years old and show no signs of corrosion due to water.
When I removed and inspected them I found that the end plate had been scorched from the hot exhaust and was wearing thin.
Save yourself a few thousand and replace with cast iron when necessary.
pfhlaw attached the following image(s):
pfhlaw attached the following image(s): Chrysler end plate.jpg
Peter
1981 32' sedan bridge
twin Chrysler 360 cu. in. 250 hp engines
Raw water cooled
Nimbus II
Home port: New Buffalo, MI
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