408 stroker cam recommendations and ring gap
Thread Starter
Staging Lane
Joined: Mar 2024
Posts: 66
Likes: 15
408 stroker cam recommendations and ring gap I'm currently putting together a lq4 408 and am looking for cam recommendations.
Iron block 6.0
11.1:1 compression
trickflow 215 heads (I know they are probably a bit on the small side for a 408 but they were free with the car)
Fast LSXR 92 intake
Engine is going into my 05' CTSV, looking to hopefully make 500hp
This car will not be a daily driver more of a fun weekend street car.
I am not a expert by any means at picking cams, currently I am between the BTR stage 4 NA 233/248 .630"/.615" 111.5+2.5 and the BTR 400+NA CAMSHAFT V2 236/25X, .636"/.636", 114 LSA but unsure which is the best one to use.
Also am looking for advice on ring end gap I plan to run this engine NA its entire life, I currently have the the gaps set to 0.020" on the top ring and 0.023" on the second ring. just wondering if this was enough gap or if I should go more?
Iron block 6.0
11.1:1 compression
trickflow 215 heads (I know they are probably a bit on the small side for a 408 but they were free with the car)
Fast LSXR 92 intake
Engine is going into my 05' CTSV, looking to hopefully make 500hp
This car will not be a daily driver more of a fun weekend street car.
I am not a expert by any means at picking cams, currently I am between the BTR stage 4 NA 233/248 .630"/.615" 111.5+2.5 and the BTR 400+NA CAMSHAFT V2 236/25X, .636"/.636", 114 LSA but unsure which is the best one to use.
Also am looking for advice on ring end gap I plan to run this engine NA its entire life, I currently have the the gaps set to 0.020" on the top ring and 0.023" on the second ring. just wondering if this was enough gap or if I should go more?
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Joined: Jan 2008
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From: Ohio, Georgia, Nevada, Texas
I'm currently putting together a lq4 408 and am looking for cam recommendations.
Iron block 6.0
11.1:1 compression
trickflow 215 heads (I know they are probably a bit on the small side for a 408 but they were free with the car)
Fast LSXR 92 intake
Engine is going into my 05' CTSV, looking to hopefully make 500hp
This car will not be a daily driver more of a fun weekend street car.
I am not a expert by any means at picking cams, currently I am between the BTR stage 4 NA 233/248 .630"/.615" 111.5+2.5 and the BTR 400+NA CAMSHAFT V2 236/25X, .636"/.636", 114 LSA but unsure which is the best one to use.
Also am looking for advice on ring end gap I plan to run this engine NA its entire life, I currently have the the gaps set to 0.020" on the top ring and 0.023" on the second ring. just wondering if this was enough gap or if I should go more?
Iron block 6.0
11.1:1 compression
trickflow 215 heads (I know they are probably a bit on the small side for a 408 but they were free with the car)
Fast LSXR 92 intake
Engine is going into my 05' CTSV, looking to hopefully make 500hp
This car will not be a daily driver more of a fun weekend street car.
I am not a expert by any means at picking cams, currently I am between the BTR stage 4 NA 233/248 .630"/.615" 111.5+2.5 and the BTR 400+NA CAMSHAFT V2 236/25X, .636"/.636", 114 LSA but unsure which is the best one to use.
Also am looking for advice on ring end gap I plan to run this engine NA its entire life, I currently have the the gaps set to 0.020" on the top ring and 0.023" on the second ring. just wondering if this was enough gap or if I should go more?
Thread Starter
Staging Lane
Joined: Mar 2024
Posts: 66
Likes: 15
So my gaps should be good or should I get another set and file them tighter? I do have one that I accidentally filed too much and is at about 0.024 on the top ring and 0.025 on the bottom, is that ok or should I get a new set?
For a fun weekend street car build, you’ll be fine. If you were chasing a dyno number, looking for a max effort build, I’d say buy another set of rings, but in what your building, you’ll be fine as-is.
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Staging Lane
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TECH Fanatic
Joined: Aug 2009
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From: Coast of San Mateo County Between Pacifica & HMB
Cam Motion Custom
~238*/246* 114*+2* .621"/.604"
should easily make 600 @ crank & ~ 500 wheel (manual trans)
with a good exhaust no need for more than +8* exhaust split,
will tune and drive great.
My .02
~238*/246* 114*+2* .621"/.604"
should easily make 600 @ crank & ~ 500 wheel (manual trans)
with a good exhaust no need for more than +8* exhaust split,
will tune and drive great.
My .02
TECH Fanatic
Joined: Jan 2017
Posts: 1,758
Likes: 442
I had a similar combo through a 9" and a 4l60e. 402 with Tsp 225 as casts, msd intake, 236/245 112 cam, header exhaust and all that. Made 470ish wheel locked.
Thread Starter
Staging Lane
Joined: Mar 2024
Posts: 66
Likes: 15
Well I filled out a cam recommendation form for cam motion about a week ago and still haven't heard back, also filled one out for comp. . Neither have responded yet so we will se what they recommend when I get a response.
TECH Fanatic
Joined: Jan 2017
Posts: 1,758
Likes: 442
I would also try tick performance if you don't hear back.
Thread Starter
Staging Lane
Joined: Mar 2024
Posts: 66
Likes: 15
Just heard back from tick they recommended their stage one stroker cam 236/245 .625”/.610” LSA112+3 they also recommended I ditch the tfs215’s in favor for a set of 235’s. So now the question is do I sell the 215’s and get a set of 235’s or do I completely go a different route and get a set of ls3 heads?
Last edited by Fireballmatt15; Jun 5, 2024 at 08:38 AM.