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By oldcarmark - 4 days ago
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I just received the New Aluminum Intake Manifold I ordered from Blue Thunder. This is a new Item for them. Exact Copy of the ECZ-B Manifold except it is Aluminum. Not a high Performance One as stated in Listing on Ebay. Just a stock replacement Manifold. Why am I spending Money on a stock Manifold? Couple of Reasons. MUCH Lighter than the Cast Iron One. About 15 Pounds. I expect it will also help with cooling as Aluminum does not retain Heat the way Cast Iron does. I am very impressed with the finishing on this Manifold. Blue Thunder has a pretty good reputation for Quality Products I think. I have an Aluminum Mummert Valley Pan to go on my Project and now a little more Bling with the Intake.   
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By Joe-JDC - 4 days ago
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I think you have one of the new intakes from overseas, not a Blue Thunder. Unless he has changed his molds, the Blue Thunder has the part number and the newest version has the firing order on them. Just an observation. Joe-JDC
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By oldcarmark - 4 days ago
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These are cast You Know where and finished in USA. They are not labelled as Blue Thunder but finished and sold by Blue Thunder People. Marketed as a stock replacement non Performance Manifold. See Listing on Ebay. Just what I wanted for stock rebuild.
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By Joe-JDC - 4 days ago
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As long as you didn't pay Blue Thunder prices for it, then all is good. Selling locally for ~$200-225.00 US. Hate to see anyone get ripped off. Joe-JDC
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By KULTULZ - 4 days ago
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By 55blacktie - Last Week
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Aluminum, like all metals, is a conductor. It will heat up faster than cast iron, but it will also cool down faster. When hot, it will retain heat, just as any conductor would. I particularly recall a recommendation to use a phenolic carburetor spacer whenever both manifold and carburetor are made of aluminum, but I don't remember the source. As far as weight saving is concerned, I guess that's a plus when it comes time to install/remove it, or if you plan on racing.
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By Big Tim - 3 days ago
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Definitely a TSP manifold. Mis-matched runner floor and oblong water port are pretty good tells of that. It's a nice manifold for the price. Currently in stock but have gone up to $285 since their last batch a few months back.
https://topstreetperformance.com/products/1955-1957-ford-thunderbird-4-barrel-4v-aluminum-intake-manifold-ecb-9425-b-272-292-312-satin?srsltid=AfmBOorUiLeJK8DjsNfhmaLS9fYP8-Pm-8PtDFVTDQewsVEs9fSWMc-6
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