LT1-LT4 Modifications 1993-97 Gen II Small Block V8

question about LT4

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Old Aug 24, 2004 | 11:55 AM
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I just bought a 1993 chevy 1/2 ton with a TBI 350, will the LT4 conversion package work with this? I am looking to get more power and a little bit better gas mileage. Thanks
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Old Aug 24, 2004 | 12:13 PM
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Originally Posted by black5.3
I just bought a 1993 chevy 1/2 ton with a TBI 350, will the LT4 conversion package work with this? I am looking to get more power and a little bit better gas mileage. Thanks
Unfourtunately, this package will NOT work with your Chevy 1/2 ton. The LT4 conversion package is for the Gen II SBC (LT1, LT4 engines). These are only found on the 92-96 Vettes, 93-97 F-bodies, and 94-96 B-bodies (Caprice, Impalla). The Gen II SBC has a reverse cooling system (the coolant goes to the heads first then the block). The coolant ports are located differently than on Gen I SBC. In addition, the distributor (optispark) is driven off of the front of the engine via the cam. The LTX cam will not work on a Gen I SBC.

I would suggest going with some Vortec heads IMHO. These heads don't flow quite as good as LT4 heads, but do flow about the same as LT1 iron heads slightly better than aluminum LT1 heads.
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Old Aug 24, 2004 | 01:14 PM
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Thanks man!
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Old Aug 28, 2004 | 09:34 PM
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Originally Posted by METALBEAST
These are only found on the 92-96 Vettes, 93-97 F-bodies, and 94-96 B-bodies (Caprice, Impalla).

What about the Fleetwoods? Ie, D-Body.
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Old Aug 28, 2004 | 09:59 PM
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Originally Posted by ShadowLvr
What about the Fleetwoods? Ie, D-Body.
Does the fleetwood have a lt1 in it? if yes itll work
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Old Aug 28, 2004 | 10:57 PM
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Yup, she's the LT1 350. 260 horse at 5000, or 5200? I forget. 330 torque at 2400. And the evil Opti-spark.
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Old Aug 29, 2004 | 07:07 AM
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Originally Posted by ShadowLvr
Yup, she's the LT1 350. 260 horse at 5000, or 5200? I forget. 330 torque at 2400. And the evil Opti-spark.
Sorry, I missed 1
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