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Aluminum. Crappy aluminum, but still aluminum.
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Kendall Frederick Orange Park, FL Used up junk coming to a track near you soon SecondHand Six Racing |
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Aluminum, but it seems slightly different than the 86-87 manifolds. Using the same dremel to port both styles, the shavings were different between the two. A ran into a few big air pockets in the casting when I was porting it.
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84 GN. 4.1L girdled with 8.5:1 JEs, 212-212 Comp Cam, GN1s, Ported stock intake, Ford FM IC, 6765DBB, KB headers, Cotton's 3" DP, Innovative Turbo Systems external gate, 60lb injectors, Turbo tweak chip, and a few misc things. No times with new combo yet. 06 Acura TL daily driver. |
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