Just wondering. I remember reading about them a few months ago, how changing the firing order can net some 'free' HP. Anybody ever have one of these ground and run it in an LT1? I'm stepping up to a custom cam from my 233/239 so I'm curious about what one of these would make compared to the same cam with a regular firing order, and if one of these would pose any potential tuning issues.

Since the LT1 is sequential EFI, the injector connectors would need to be swapped on those cylinders as well as the plug wires, correct?

 

wonder how this would change the exhaust sound?

 

They've dyno'd these before and after at a local dirt track shop. On 650 hp engines, they're gaining about 6 - 10 hp.

 

Yeah I have done them. Takes a bit of work on a LT1 and either you need a LT1 core with the swap done OR you can't run a opti and you have to modifiy the timing cover and run a different timing chain.

Bret