LT1 year ID
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Teching In
Joined: Jun 2006
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From: Birmingham, AL
LT1 year ID I've posted here before about LT1's and how I new were one was that I could have for a really really good price and its now mine. I pulled it out of the car it was in along with the 4L60E and the complete wiring harness. It now proudly sits in my basement waiting to be swapped into my 72 Cutlass. I know the motor came out of a Impala/Caprice and I have the computer service number and was hoping someone out there might be able to id the year of this motor. It was missing some parts when I pulled it and wanted to make sure I got the right parts for the right year as I don't know what differences there might be. I'm missing the ICM, the coil, and the O2's. There is a sensor on the side of the oil pan that I am assuming is a low oil indicator that also needs to be replaced.
Thanks I look forward to LT1 power in the near future
Thanks I look forward to LT1 power in the near future
Last edited by 72Cutlass; May 6, 2010 at 02:16 PM. Reason: Picture problems
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Thread Starter
Teching In
Joined: Jun 2006
Posts: 37
Likes: 0
From: Birmingham, AL
When I pulled the motor I meant to check that, but I was running late for work...then with finals finally over I just checked and yup its the unlovable L99.
But all hope is not lost, I still have a professionally converted harness, a good opti, accessories, fuel pump, and a good trans. Is there any difference on the intake or heads of a L99 and Lt1?
Maybe I can turn this around and have a nicely built 355 or 383 when I get a new shortblock...maybe even sell the 4L60E and see if I can get a m6. One thing I've learned restoring my cutlass is you can never let it get you down no matter what, because in the end nothings better than when you first crank it up and go for the first drive
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The heads are pretty much the same as the iron LT1 heads except they have 1.84/1.50 valves instead of 1.94/1.50.
The block has a 3.75" bore. It can safely be bored .060".
The crank has a 3.00" stroke.
The rod length is 5.964".
The intake and throttle body are the same.
Where are you located?
The block has a 3.75" bore. It can safely be bored .060".
The crank has a 3.00" stroke.
The rod length is 5.964".
The intake and throttle body are the same.
Where are you located?
I misread it and thought you had said
