LTX

There’s not much info in terms of making a 411 work on a 93 LT1 T56 car. I have an opportunity to pick a 411 pcm up for $40. Just the computer. What exactly is needed to run? This might be a broad question.

Supercharged111

iTrader: (1)

The 93 has fatter pins than the 411, so you'd need to change over to the smaller pins to do the swap. Are you planning to run 4X or 24X? 4X you treat it like a Vortec 350. 24X you treat it like a GenIII LS.

95mysticta

iTrader: (4)

I have personally done the efi 24x on a 94 trans am and done the 4x swap on a 97 trans am.

The 4x swap can be done cheaper but your still using a dizzy unlike the 24x swap where you have coil per plug.

To 4x swap my 97 being already obd2 required only a 411 pcm and harness connections which can be bought cheap and cut from scrapyard ls truck van s10 etc. Repinned the harness to a 02 l31 vortec 350 specs and it ran off stock tune with security deleted.

Search horsepower tube on youtube he swapped his 93 trans am to the 4x swap and shows the steps to do so.