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John, I'd love to hear more about the motor. What all did you do to it? What are the specs?
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Scott, it's a 427 LSx, and it was built and dyno tested by Wegner Automotive Research. They do a few street motors a year, but their main work is NASCAR Busch lease program race motors. They are also producing very cool LSx front assembly sets. They alternator, ps, and water pump setup you see on mine is manufactured at their facility in Wisconsin.
The block is a sleeved LS2, 4.125 bore. The internals are all Lunati, with a 4" crank. Wegner supplied their CNC-ported LS6 heads (Manley valves, Comp valve springs). We tried some GM, Comp, and Lunati cams on the dyno, and the best combination was the Lunati Voodoo grind. The engine made 620hp at the flywheel at 6300 rpm, with 579 TQ at 5800. It's a torque monster, with plenty of power to 7000 rpm.
Intake is GMPP's carb-style manifold (developed by Wegner and licensed to GM), with a Holley 1000 CFM throttle body. Exhaust is my original headers, though updated to 1.75 / 32 in stainless by Stainless Works.
It's a long story, but the engine management is a FAST XFI, using an eDIST and their crank decoder. Mike Norris (nee Next Level Performance) did the tuning here in Orlando.
jp