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I bought a 2007 chevy uplander about a month ago with the intentions to swap the LZ9 into my 1987 Fiero GT. I'm going to run it off of a MegaSquirt 3 pro mini. I am doing a VVT delete by using a 2007 equinox LNJ camshaft, and I'll use the old 2.8 timing cover. So far I have taken the LZ9 out of the Uplander and tore it down to the short block. I put the LNJ camshaft in and got the engine timed. I put the heads on, but flipped the sides from what they were as well as flip the head gaskets. I did this so that the coolant passages coming out of the heads are pointing the correct way. Some of the brackets I plan to use would also block the passages if I would have left them. I made some coolant port blocks for the heads that adapt them to a -12 AN fitting. For the exhaust I plan on using the majority of the factory one after the cat. I modified the right side manifold so that it might flow better and I will do a factory style Y pipe crossover. This will be my first engine swap so any tips or advice would be appreciated.
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Nice, thats basically how the fwd race car setup is, with the heads swapped around and AN fittings out the side. It works
Are you going to use SFI and LS coils? Personally, I can't imagine doing this swap and using a stock cam. Going boost later?
Ben
60DegreeV6.com
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I do plan on doing SFI. I was planning on using the factory coils and just doing the wasted spark, unless there is a big benefit to LS coils? I don't think the MegaSquirt I have will run anything but wasted spark anyway. No plans for boost, the 100 HP gain will be fine for now. I do think i'll do a cam later down the line.Comment
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I got the oil pan, valvetrain and Fiero timing cover and water pump put on today. Also showing what I did for the intake. I'm going to use a LZ4 intake manifold, and I bought a LS4 to 3 bolt throttle body adapter for it. The adapter didn't exactly line up so a few modifications to the bolt holes and inlet hole were needed for it to line up better. the throttle cam wasn't in the right spot so I twisted it around and welded it 90° from where it was.
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