Finally got to drive my Camaro!

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It is really quite unfortunate that there is no real good routing option for duals on this chassis
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Got the 6.0L long block tore down today, Good news is....It's a LQ9 with flat top pistons & Floating Wrist Pins, The bad news is....Whoever pulled the engine ran bolts INTO the combustion chamber on #2 & #7 ruining both heads, I have never seen/heard of this happening??

The only picture I took, The bulge is where the bolt came through.
 
Originally Posted By: ls1mike
That is crazy! I would like to know how they did that.


That is weirdly interesting and really stupid! How did they do that? Shuffled their bolts up sloppily?
 
Originally Posted By: dailydriver
Originally Posted By: ls1mike
A pic of the car, BTW the girl that was driving the car walked away with a broken wrist & a hurt ego...


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That picture is going to give me nightmares.



Yeah, that POOR Bird.
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Originally Posted By: clinebarger
Got the 6.0L long block tore down today, Good news is....It's a LQ9 with flat top pistons & Floating Wrist Pins, The bad news is....Whoever pulled the engine ran bolts INTO the combustion chamber on #2 & #7 ruining both heads, I have never seen/heard of this happening??

The only picture I took, The bulge is where the bolt came through.



No problem. A set of CNC ported LS3 heads will fit the 6.0L block. Add a good cam, and you'll be stomping Mustangs in no time!
 
Originally Posted By: dailydriver
Originally Posted By: clinebarger



Looks exactly like mine, except I have a hardtop (no t-tops).

Mine even has those same wheels on it now for the winter, with the older, BFG Super Sport all seasons on them in the same size as your Comp 2 all seasons.

The only reason I ordered a black car was because that was the ONLY WAY I could have a SOLID color Z28 (same color roof as the rest of the body) save for painting it myself.

I wanted a silver car, but could not STAND it with that Talon/Eclipse type black roof they made you take with it.
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Yeah, I know where you're coming from on the black roof. I hated the idea of having a black roof on my light pewter metallic car, so I had the dealer paint the roof to match the body color before I took delivery. They couldn't believe I wanted to do that, and even called me back to confirm that I REALLY wanted it that way.
 
I have 2 Camshafts too choose from for the LQ9 6.0L build, I will install a 3600-4000 RPM Stall Torque Converter with the engine. Wanted some opinions on which one....They are pretty close... Leaning toward the 273...

Competition XER273HR

Duration @ 0.50 224 Intake 230 Exhaust
Valve Lift .581" .588"
Lobe Separation 114 Degrees
Intake Center line 112 Degrees


Competition XER281HR

Duration @ 0.50 232 Intake 234 Exhaust
Valve Lift .595" .598"
Lobe Separation 112 Degrees
Intake Center line 110 Degrees
 
The 273 seems plenty radical, open those ports a bit and clean up the intake and exhaust manifolds (hopefully headers) to match.

With that much converter you could go radical as all get out...
 
Originally Posted By: clinebarger
I have 2 Camshafts too choose from for the LQ9 6.0L build, I will install a 3600-4000 RPM Stall Torque Converter with the engine. Wanted some opinions on which one....They are pretty close... Leaning toward the 273...

Competition XER273HR

Duration @ 0.50 224 Intake 230 Exhaust
Valve Lift .581" .588"
Lobe Separation 114 Degrees
Intake Center line 112 Degrees


Competition XER281HR

Duration @ 0.50 232 Intake 234 Exhaust
Valve Lift .595" .598"
Lobe Separation 112 Degrees
Intake Center line 110 Degrees



I'd lean toward the 273, too. I drove a Cadillac CTS-V with the GM ASA cam in it (226 Int, 236 Exh duration @.050) a few months ago. In the 6.2L engine, the cam woke up at 4000 rpm, and pulled strong to 6500. It had a noticeably lopey idle.
 
My WS6 has the following.

Duration @ 0.50 228 Intake 232 Exhaust
Valve Lift .582" .592"
Lobe Separation 112 Degrees
Intake Center line 110 Degrees


I have been really happy with it.
 
Originally Posted By: ls1mike
My WS6 has the following.

Duration @ 0.50 228 Intake 232 Exhaust
Valve Lift .582" .592"
Lobe Separation 112 Degrees
Intake Center line 110 Degrees


I have been really happy with it.


Still the original LS1?
 
Thanks to SteveSRT8, LS1mike, & A_Harmon, I appreciate the input!

I hate picking Camshafts, I can narrow it down too 2 or 3 usually...Then I get very indecisive for some reason?

I also really like the 273, But LS1mike is running a very similar cam to the 281....But without as much duration spilt, Which I'm sure works well with his cathedral port heads.

With the rectangle port heads I'm going to run, And I have a few more cubic inches....The 281 will work fine...with a 4000 Stall.

But the 273 would be good with a 3600 Stall.

Back on the engine, I need to order some pistons so the Machine work can be done, I need to "CC" some LS3 heads, But I'm pretty sure with Flat-Tops & GM 6.0L/6.2L head gaskets I will be around 10.1-10.3 compression with a 0.30" overbore...Depending on piston "Installed" height.

The factory LQ9 pistons are ABOVE the deck a few 1000's of an inch, So I need to measure the Pin location to give me a starting point.
 
I agree with SteveSRT8- with that much converter, you could get away with lots of cam... but I didn't see where you said what rear gears were in it?

If you had 3.73 or less I'd probably stay with the 273. If you had a 4.10 or more I'd probably be temped to stick the big hoss in there.
 
Originally Posted By: The_Eric
I agree with SteveSRT8- with that much converter, you could get away with lots of cam... but I didn't see where you said what rear gears were in it?

If you had 3.73 or less I'd probably stay with the 273. If you had a 4.10 or more I'd probably be temped to stick the big hoss in there.


3.42's, But with a 25.6" tall tire.
 
My first go fast car had a 3.90 geared 10 bolt. Engine was a 350 with Dart Sportsman II heads, Performer RPM intake and a 750 Holley. Cam was a flat tappet Crane circle track grind- something like 232/236 @ .050" and .518"/.536" lift on a 106 center. That car had a B&M 2800-3200 stall converter with 26ish" tires... Gawd I loved it!
 
Originally Posted By: clinebarger
Thanks to SteveSRT8, LS1mike, & A_Harmon, I appreciate the input!

I hate picking Camshafts, I can narrow it down too 2 or 3 usually...Then I get very indecisive for some reason?

I also really like the 273, But LS1mike is running a very similar cam to the 281....But without as much duration spilt, Which I'm sure works well with his cathedral port heads.

With the rectangle port heads I'm going to run, And I have a few more cubic inches....The 281 will work fine...with a 4000 Stall.

But the 273 would be good with a 3600 Stall.

Back on the engine, I need to order some pistons so the Machine work can be done, I need to "CC" some LS3 heads, But I'm pretty sure with Flat-Tops & GM 6.0L/6.2L head gaskets I will be around 10.1-10.3 compression with a 0.30" overbore...Depending on piston "Installed" height.

The factory LQ9 pistons are ABOVE the deck a few 1000's of an inch, So I need to measure the Pin location to give me a starting point.




For rectangular port heads (L92 or LS3) a larger duration split is recommended to get the exhaust flow to keep up with the intake. Comp's LSr Rectangular Port series of cams are designed for the heads with the 2.16" intake, 1.6" exhaust valves. They have 16 degree longer exhaust duration than intake. Their Cathedral port cams have only 8 degree duration splits.
 
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