🔧 BUILD Upside-down M90 GTP build thread

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When your wife gives you permission to build a racecar, you build a racecar.

This is what happened to me. However, all funding for this project comes out of my construction account. I really need a telehandler, so this is very budget friendly. Luckily, I've been stockpiling parts for years. This isn't an overnight build by any means. My goal is to make a 1/4 mile pass with it before the tracks close for the season. I'm taking a risk here and using photobucket for image hosting, so hopefully they don't screw me over again.

So let's start it off. I bought a 04 L26 motor with somewhere north of 100k on it and started to tear it down.

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Everything looks good so far. The pistons are really clean. There was some junk sitting in the oil pan, but not much.

10sec

I haz dat teddy bear smile.
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Jul 26, 2008
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You going full on drag car that you can cut a shit ton of weight out of? I mean, a cam/intercool'd car is good for maybe 380whp, unless that grand prix weighs like >2000lbs, you're going to need more power than that.
 

GTPpower

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Jun 5, 2012
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Nebraska
Got one side prepped and ready for the head. Installed studs and .052" mls gaskets.



I've had these heads for a long time. They were ported by Mark Tischler and I had a machine shop go through them a few years ago. They have Manley stainless severe duty valves, manley 150# springs, new valve seals, and titanium retainers.





One installed. I torqued it to 90 ft lbs.

 

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