LT1 swap

[Ken Kelly]

All LT1's use the Opticrap ignition. They did change the computer in 94.  94 to
97 LT1's used the 8051 PCM. and include sequential injection & control of the
4L60E trans. The 92 & 93 used an earlier Batch fire computer with a 700R4. I
don't know the Code for this ECM, but the LT1 definitly included an OptiSpark.

		Ken

Thomas Matthews wrote:
> 
> Can a 90-92 7730 ECM run a early LT1? Specifically, can it understand
> the ignition system without any extra programming? I would swap this
> engine into my 3rd gen Bird which has TPI, this way I could keep the
> orig harness and not have to learn how to program the later ECM's...
> Don't the 92-94 LT1's have something different than the 95-up Optispark?
> TIA
> Tom