Engine Swap Question
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Joined: Dec 2002
Posts: 73
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From: St. Augustine Florida
Engine Swap Question
Like many of you forum members before me, this is the year I plan to add cubic inches to my to my engine. I have had several conversations with the engine builder I selected about rotating assemblies, and cylinder bore combinations. The LT1 engine has definite limations. In our last discussion yesterday he suggested a totally different solution. He suggested using an after market cast iron small block, with AFR aluminum heads, and a TPIS mini ram intake. He thought going to an L98 ECM and harness would work with this combination. I know there are many considerations to this swap, but my question to you folks is weather the ECM cabling connections from my instument pannel will connect to the L98 computer.
Pro
Joined: Feb 2002
Posts: 533
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From: Augusta Ga
This is the same thing I am dealing with, I am putting an older style block into a 92. I went out on a limb and bought a 91 engine wiring harness/ecm hoping that these two years are similar enough. You will probably have tons of replies asking why you want to get rid of the opti.
Thank you
Thank you
Thread Starter
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Joined: Dec 2002
Posts: 73
Likes: 0
From: St. Augustine Florida
The Dart block is not setup for a front mount distributor. If I keep the LT1 block, I plan on replacing the opti spark with an after market replacement anyway. So one way or the other, I will buy a new distributer for the project.
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
The 91 has a 727 ecm, essentially the same as the 92. The pinouts are different, but it could be wired in to work. Then use your memcal and the $8d mask (w/ appropriate .bin) instead of the DA2. For all I know, you may be able to use either one. I did my 7749 (syclone ecm) conversion that way. Keep us posted. Good luck!!!!
