I was wondering if a set of LS6 heads with cam and LS6 intake manifold would bolt right onto a LS1 motor and if the PCM would need to be modified at all?

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98 Red Z28 A4 bought on 4/02/02.
Flowmaster, K&N Filter, Flowtech Dump pipe.
Best 1/4: 13.554 at 102.62

 

should bolt right on they have the same block. i dont think that you have to do anything with the pcm it will read the differences in air flow and adjust itself.

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98 Z28, Onyx Black, A4, t-tops, other than the free mods, a random tech cat back, and a whisper lid, it is stock

 

You might find that you need to add a little more fuel I recall Nick from ARE saying that the LS6 intake (this was in 1999) leans out the cars up top.

Our gm sponsor on LS1Tech has given me a lot of info about the GM LS6 CNC heads check out some of the relevant threads.

I last made 450rwhp with my current setup (unlocked) but am going to stage III LS6 heads and possibly a stronger cam, I hope to have the highest NA dyno #'s in Chicago, 480rwhp unlocked and 500rwhp locked.

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1998 Formula | ARE 422ci iron block with Stage II heads | 40 lb Injectors | LS6 Intake | TTS headers | 3" ORP | Mufflex 4" Catback | MSD Wires | Whisper lid | SLP MAF | FLP level IV 4L60E | Yank TPE4400 | Moser 9"/4.10's | RT Torque Arm | HAL Shocks and Springs (front) | V6 Springs (rear), Alston 8 pt Rollcage | Airlift Airbag | Weld Prostars | ASCD Hood | 11.15@120.30mph 1.53 3625 raceweight LS1TECH.COM