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  #11  
Old 01-20-2010, 02:46 AM
1970camaroRS 1970camaroRS is offline
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Quote:
Originally Posted by 1badchevelle View Post
Nice project looks like you know what you want. I do have a question why ls6 heads and not the l92?
I love answering this question. To be honest, I aquired the LQ4 with the intentions of running L92 heads, but one heck of a deal came across my plate and I had to take it. The heads without valve springs only ran me $650 shipped and I already have the springs, locks and retainers I was going to use on the L92s. They were also recently redone and milled for a smaller chamber, which is a must on the LQ4 with dished pistons to bring up the compression ratio.

Here are the technical reasons that made the final decision for me.

1. The valve size on this head is only 2.0" as opposed to the giant 2.16" valve on the L92 meaning I can run a much more aggressive cam before running into PtV issues.

2. The runner volume is 30cc less than L92s meaning more port velocity and more torque, especially on an engine that might not have the highest compression ratio in the world. Or cubic inches. This is a street car after all.

3. They flow within 10 cfm at peak and 5 cfm everywhere else of the stock L92s. I will be giving up a few peak HP in trade for more torque, but I will make up for it with the camshaft.

4. My LS6 heads will use my stock rockers that I already have. If I had a larger budget I'd get the needle bearings replaced, but I'm just going to have to sit on this one. They checked out good during inspection anyway. No need for offset rockers that L92s need.

5. Did I mention that they were $650 shipped?

-Nathan

Last edited by 1970camaroRS; 01-20-2010 at 02:57 AM.
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  #12  
Old 01-20-2010, 02:52 AM
1970camaroRS 1970camaroRS is offline
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Originally Posted by 70rs View Post
Because the LS6 heads were there and priced right I am guessing.

I remember that 454 coming out! How are you doing Nate?
Doing good, keeping busy at Boeing on that friggin 787. At least it's flying now. Glad to hear your surgery went well.
Quote:
In case anyone is wondering who this "70 splitbumper" nut job is, that's me. I have another life under an assumed name here.

The 454 was pretty easy to get out but I was amazed at how much crap came out of it and it was still in great shape.
Would have been easier if someone had remembered the last two bolts that were still in the bellhousing....
Quote:
For those of you that don't know who 1970 camaroRS is, he is a guy that lives near me that I met over on Nastyz28 last year. We bacame friends and spent some time with tools working on his car.
He is a really good guy, lot's of fun to hang with and I am glad he has decided to start a build thread here. Now we just need to talk him into forgetting the drag strip and work on going around corners.
Hey, with the Eibachs, poly bushings, Z28 leafs and huge by big front sway bar, that car handles surprisingly well. Just have to replace the 15" steel wheels with something more like the 275/45-17s on my 2000 SS. At least I got that boat anchor out of the nose!
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Thank god those pictures of me got lost off the SD card!

Hey Nate, check out the new site started by some members here. Camaros only too! www.thecamarosite.com I think you will really like it!

Let me know when you need me to come back over and supervise again!
We CAN STILL BBQ in the middle of winter ya know!
Last I checked I still BBQ almost every night at 1am after work, rain, snow, hail, wind storms....whatever. Tax return and retirement account loan checks are in the mail....soon to be followed by parts! Stay tuned.

Of course I could tidy up the engine bay or swap out my power steering box for the manual box I have sitting around to keep me busy until then. Then there's that F250 I need to get running again.....

-Nathan

Last edited by 1970camaroRS; 01-20-2010 at 02:57 AM.
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  #13  
Old 01-20-2010, 02:53 AM
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camcojb camcojb is offline
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yep, great project and very similar to what I'm going to do. Please keep us updated, and check out the Camaro site linked above.

Jody
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Ron Davis Radiators for their radiator and fan assembly.
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Texas Speed and Performance for their 427 LS Stroker
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Currie Enterprises for their 9" Third Member
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  #14  
Old 01-20-2010, 02:56 AM
1970camaroRS 1970camaroRS is offline
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Quote:
Originally Posted by GregWeld View Post
So my question is what happened to the one rear cylinder that showed real nasty on the one head? Burnt valve? or??

Nice work guys... You too Eric...

:>)
Looking closely at it I appears to be a burnt valve, but it held pressure before tear down and the piston and cylinder wall look no different than any other.



Head gasket also looked good. I'm sure after I get the engine put back together and I do a compression test everything will be ok.

-Nathan
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  #15  
Old 01-20-2010, 03:11 AM
1970camaroRS 1970camaroRS is offline
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Quote:
Originally Posted by camcojb View Post
yep, great project and very similar to what I'm going to do. Please keep us updated, and check out the Camaro site linked above.

Jody
Joined and posted. I remember you front NastyZ28.

-Nathan

Last edited by 1970camaroRS; 01-20-2010 at 03:14 AM.
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  #16  
Old 01-29-2010, 05:59 AM
1970camaroRS 1970camaroRS is offline
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Default Christmas in January

This is what I found when I woke up this morning:


The parts fairy had visited me in the night!


My ham of a fist agrees, this is good.


Like the kids from a Christmas Story, I tear into the boxes:
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  #17  
Old 01-29-2010, 06:02 AM
1970camaroRS 1970camaroRS is offline
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Love it, big smile.


What is it that put a big goofy smile on my face?


THIS

SLP, ARP, Fel-Pro, Edelbrock, Trick-flow, Hughes, Summit. The gangs all here.

Oh and a bonus from the fine folks at the Summit Racing warehouse.
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  #18  
Old 01-29-2010, 06:10 AM
1970camaroRS 1970camaroRS is offline
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SWEET!


ARP rod, intake, balancer bolts and head studs


MSD wires


Edelbrock mount adaptors

Surprisingly poor quality in the finish. Lots of burs and sharp edges. I will have to clean them up before I install them.
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  #19  
Old 01-29-2010, 06:13 AM
1970camaroRS 1970camaroRS is offline
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See.


Hughes LS1 flexplate for TH350/400, 700r4 transmissions.


Billet Double roller timing gears and chain


SLP ported oil pump. Impulse buy, could have just gotten a cheap stocker and ported it myself.
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  #20  
Old 01-29-2010, 06:16 AM
1970camaroRS 1970camaroRS is offline
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Interesting note on the SLP oil pump, it comes with another pressure relief spring to up the oil pressure if needed and a new cap and o-rings too.


K&N Extreme Flow filter...


Something I should have known better, the K&N comes with the required carb stud and hardware...bought some cheapo Summit stuff too. Oh well.
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