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Hawks LS1 to LS6 Valley kit

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Old Jan 4, 2025 | 08:52 PM
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Default Hawks LS1 to LS6 Valley kit

Has anyone used the Hawks LS! to LS6 valley kit conversion and how it worked out
any info on this would be great!!!
thanks Rich
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Old Jan 5, 2025 | 08:53 AM
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its a very common conversion.....many write ups on how to do it on here.....I highly recommend it myself and do it to every F bod I have come it contact with ....5 so far
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Old Jan 7, 2025 | 09:46 AM
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Thank You I will check out some older posts I just didn't see any one using this part from Hawks
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Old Jan 9, 2025 | 02:22 AM
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its not a part FROM Hawks...just a kit put together by Hawks....you can buy those parts from GM if so inclined
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Old Jan 31, 2025 | 03:25 PM
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Does it look like that I would need to cut the boss down for clearance, I was told that my engine being a 2001 that I would not need to have this done. Hawks is also telling me that its a direct fit with no cutting

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Old Jan 31, 2025 | 04:04 PM
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I'm curious about this as well. My engine is from a 2000 Camaro SS donor car.
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Old Feb 1, 2025 | 12:13 PM
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LS6 blocks do not need clearance for the cover.....LS1 do.....if you look up the other threads on here explaining the procedure you will find all this info....there is also a website that covers the conversion too....the threads on here have links to that website
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Old Feb 1, 2025 | 12:27 PM
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Here is a link to make it easy. I did this 20 years ago on my '99 LS1 when I put on the AFR205 heads and big TSP 233/239 cam.
https://ls1howto.com/index.php?article=18
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Old Feb 1, 2025 | 01:09 PM
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Originally Posted by sjsingle1
LS6 blocks do not need clearance for the cover.....LS1 do.....if you look up the other threads on here explaining the procedure you will find all this info....there is also a website that covers the conversion too....the threads on here have links to that website
I Just didn't know if my block was slightly different being a 2001 I did read some info. that this year and newer you did not need to cut. I don't understand why Hawks is saying it's a direct fit with no cutting, I was not sure if their kit was built any different
Thanks Rich
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Old Feb 1, 2025 | 01:45 PM
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If you have the bullseye on the passenger side front, you have a LS1 block. Some argue that the LS1 block is stronger than the LS6 block.
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Old Feb 2, 2025 | 05:39 PM
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you have an ls1 block, the ls6 valley cover wont fit unless you grind off that oval part of the block that protrudes into the valley.
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Old Feb 2, 2025 | 07:38 PM
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Originally Posted by upstateNY_Rich
I Just didn't know if my block was slightly different being a 2001 I did read some info. that this year and newer you did not need to cut. I don't understand why Hawks is saying it's a direct fit with no cutting, I was not sure if their kit was built any different
Thanks Rich
its not hawks part...its a GM part....a part designed to fit LS6 blocks.....some F bodys did get LS6 blocks , but not many.......it can be made to fit LS1 blocks with minor clearance....I had to clearance all the engines I did this conversion to....not hard at all to do

gnx7 posted the link to the how to article....I HIGHLY recommend you get new knock sensors and a knock sensor wiring harness to replace during this conversion
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Old Feb 2, 2025 | 08:01 PM
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Originally Posted by sjsingle1
I HIGHLY recommend you get new knock sensors and a knock sensor wiring harness to replace during this conversion
I'd be careful about replacing known-good knock sensors at this point. Looks like it's hit-or-miss with the replacements, even from GM. Some folks have had better luck with AutoZone stuff, some not. But there seems to be an issue at present with getting quality replacements. If what you have is good and low mile, I'd be hard pressed to dump it. Here is what happened to another member who decided to replace good, working sensors while he had the intake off:

https://ls1tech.com/forums/general-m...-cleaning.html
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Old Feb 3, 2025 | 10:14 AM
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Originally Posted by RPM WS6
I'd be careful about replacing known-good knock sensors at this point. Looks like it's hit-or-miss with the replacements, even from GM. Some folks have had better luck with AutoZone stuff, some not. But there seems to be an issue at present with getting quality replacements. If what you have is good and low mile, I'd be hard pressed to dump it. Here is what happened to another member who decided to replace good, working sensors while he had the intake off:

https://ls1tech.com/forums/general-m...-cleaning.html
Wow thanks for letting me know, I don't know what I should do now with changing the sensors. I was looking at the GM sensors, not sure on the milage of my engine but I think it was high. I was also going to change the cam and crank sensors so maybe that's not a good idea
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Old Feb 4, 2025 | 05:47 PM
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one reason to replace the sensors....water gets in the wells and rusts the sensors out....and the metal contacts on the wiring harness rusts also ...and then the plastics tabs on the wiring harness are brittle from age and you break them removing it .....of course you dont know that til the intake is removed
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