fitting gen3 vortec head on a old 383

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Jun 9, 2011 | 12:42 PM

etellier

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Joined: Dec 2006

Posts: 21

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Car: Trans am 82

Engine: 350 4brl on his way to tpi

Transmission: 700r4 with b&m Shift kit

Axle/Gears: 3.43

fitting gen3 vortec head on a old 383

Hey folks, i was wondering if a generation 3 LQ9 6.0 aluminium head would fit on a 383 that i am rebuilding, i know the intake has to be replaced, but would it fit there, also, would the headers still fit ? anything else i should look into as per fitting issues?

6.0 ESCALADE 6.0liter LQ9 Heads
2001+ 6.0L Truck
Material: Aluminum
Combustion Chamber Volume: 71.06cc
Intake Port Volume: 210cc
Exhaust Port Volume: 75cc
Intake Valve Diameter: 2.00 inches
Exhaust Valve Diameter: 1.55 inches

thx folks

Eric

Jun 9, 2011 | 01:28 PM

gwarren007

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From: Safford, AZ

Car: 1992 RS

Engine: 305 (LO3)

Transmission: 700R4

Axle/Gears: 2.73?

Re: fitting gen3 vortec head on a old 383

Won't work. Different head bolt location .

Jun 9, 2011 | 01:40 PM

etellier

Thread Starter

Junior Member

Joined: Dec 2006

Posts: 21

Likes: 0

Car: Trans am 82

Engine: 350 4brl on his way to tpi

Transmission: 700r4 with b&m Shift kit

Axle/Gears: 3.43

Re: fitting gen3 vortec head on a old 383

ok thank you for the info!

Jun 10, 2011 | 03:07 AM

vetteoz

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From: Not in Kansas anymore

Car: 82 Z28

Engine: 383 SP EFI/ 4150 TB

Transmission: T400

Axle/Gears: QP 9" 3.73

Re: fitting gen3 vortec head on a old 383

Quote:

Originally Posted by gwarren007

Different head bolt location

Bolt pattern has nothing to do with it
All together completely different engines.
The only thing that interchanges between GEN 1 and 2 engines and GEN III (LS ) engines is the Chevy badge