Camming an ly6
TECH Senior Member
Joined: Jun 2016
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From: Central Cal.
It'll be a little rowdy, plus you only have 9.6:1 compression, but it'll run well
On edit, as said below you will need a VVT delete kit besides the cam and springs you have. I just looked up the LY6 and saw it has VVT.
On edit, as said below you will need a VVT delete kit besides the cam and springs you have. I just looked up the LY6 and saw it has VVT.
Last edited by G Atsma; Jan 22, 2020 at 02:30 PM.
The LY6 engine cam with VVT so if its still on the engine you need to delete it with something like the Summit Racing® VVT Delete Combos 09-0027
You'll also need to upgrade valve springs and it will probably need a higher than stock stall.
Any ls engine no matter what cam can run a small shot of nitrous, Some cams will just make a little more power if the grind is optimized for it.
You'll also need to upgrade valve springs and it will probably need a higher than stock stall.
Any ls engine no matter what cam can run a small shot of nitrous, Some cams will just make a little more power if the grind is optimized for it.
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From: Ohio, Georgia, Nevada, Texas
OP, Yes upgrading the camshaft in an LY6 is worth it. Our SUM-8713 stage 3 truck cam will definitely liven up an LY6. Expect an added 75 whp with appropriate bolt-ons. This cam is going to give up some low-end torque for a strong mid-range and top-end. A 2500+ converter is recommended but not required. It will have a steady lope and it works well with nitrous. As long as you got LS6 or better springs you're good there. You will need the VVT delete kit LLLosingit mentioned.
You're also going to need timing cover and water pump gaskets FEL-TCS45993. As well as valve cover gaskets FEL-VS50504R.
For changing the springs out, you're going to need a valve spring compressor tool. You can use TFS-90307with the heads on.
You're also going to need timing cover and water pump gaskets FEL-TCS45993. As well as valve cover gaskets FEL-VS50504R.
For changing the springs out, you're going to need a valve spring compressor tool. You can use TFS-90307with the heads on.
On The Tree
Joined: Jun 2009
Posts: 139
Likes: 1
From: Scottsdale Arizona
OP, Yes upgrading the camshaft in an LY6 is worth it. Our SUM-8713 stage 3 truck cam will definitely liven up an LY6. Expect an added 75 whp with appropriate bolt-ons. This cam is going to give up some low-end torque for a strong mid-range and top-end. A 2500+ converter is recommended but not required. It will have a steady lope and it works well with nitrous. As long as you got LS6 or better springs you're good there. You will need the VVT delete kit LLLosingit mentioned.
You're also going to need timing cover and water pump gaskets FEL-TCS45993. As well as valve cover gaskets FEL-VS50504R.
For changing the springs out, you're going to need a valve spring compressor tool. You can use TFS-90307with the heads on.
You're also going to need timing cover and water pump gaskets FEL-TCS45993. As well as valve cover gaskets FEL-VS50504R.
For changing the springs out, you're going to need a valve spring compressor tool. You can use TFS-90307with the heads on.
http://www.superchevy.com/how-to/engines-drivetrain/1808-advantages-of-vvt-cam-in-gen-iv-v-engine/
Last edited by mikesanto70; Feb 24, 2020 at 01:15 PM.
On The Tree
Joined: Jun 2009
Posts: 139
Likes: 1
From: Scottsdale Arizona
Please read my reply to you about cam. I answered Summit instead of you. Worth your time to read
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I did an LY6 that made over 500 at the flywheel on the engine dyno and then 712 with a shot of nitrous.
Very few mods.
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WIthout actual info on what you are putting it in, what you want, etc. No one can answer a basic question like that. But almost always, any LS likes a cam and that one is quite mild, so raises no red flags.
I have a similar setup in my GMC. I've got an 6.0 LQ4, with ported heads and a TBSS intake. Probably pretty similar flow to the rec port heads.. not sure what intake you have.
I run a similar cam, a 223/231. I would guess this comb is good for about 475 at the flywheel. There are a ton of good dyno vids out there. Richard Holdener has a lot of LY6 videos with different combos on youtube. Spend time on his channel.
I have a video of it idling on facebook, but I Can't seem to link to it...
I have a similar setup in my GMC. I've got an 6.0 LQ4, with ported heads and a TBSS intake. Probably pretty similar flow to the rec port heads.. not sure what intake you have.
I run a similar cam, a 223/231. I would guess this comb is good for about 475 at the flywheel. There are a ton of good dyno vids out there. Richard Holdener has a lot of LY6 videos with different combos on youtube. Spend time on his channel.
I have a video of it idling on facebook, but I Can't seem to link to it...