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Basic Engine

This is a discussion on Basic Engine within the LT1 forums, part of the Vehicle Specific category; What is the hoursepower of a basic LT1 engine?...

  1. #1
    024mula 024mula's Avatar
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    '02 Firebird Formula

    Basic Engine

    What is the hoursepower of a basic LT1 engine?

  2. #2
    Member krese's Avatar
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    1996 Trans AM WS6

    275-285

  3. #3
    Senior Member 5.0THIS's Avatar
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    95 Z28

    305 for a WS6 or SS.

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    024mula 024mula's Avatar
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    Quote Originally Posted by 5.0THIS View Post
    305 for a WS6 or SS.
    Both.

  5. #5
    Member krese's Avatar
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    1996 Trans AM WS6

    Quote Originally Posted by 5.0THIS View Post
    305 for a WS6 or SS.
    just like the LS1 unfortunately the LT1 1/4 mile times for a non WS6/SS are the same as the WS6/SS so i really doubt they have an extra ~20hp. being that i have a true LT1 WS6 and had a non ram air version of the LT1 i can say there really is no noticeable difference other than looks.

  6. #6
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    95' Trans Am

    Someone correct me if i'm wrong but i believe 93-95 the cars had a single catalytic converter and produced 275. 96-97 they went to a two catalytic converter set up bumping the horse to 285. My friend had a 96 and I have a 95 and those were the differences we noticed

  7. #7
    Senior Member 5.0THIS's Avatar
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    95 Z28

    Yes. The 96+ cars were OBD2 with the dual cats. And in 95 they went to the vented optispark. There were other small changes as well.

  8. #8
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    95' Trans Am

    Whats the difference between the "vented" opti-spark and what was in 93-94? I'm guessing nothing too major since it's still an opti-spark!!!

  9. #9
    Senior Member 5.0THIS's Avatar
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    95 Z28

    there is a small vent running from the intake elbow to the opti itself. This helps to pull moisture out and away from the inside of the opti.

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