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Ls3 procomp heads!!!!!!!!

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Old 02-08-2013, 01:30 PM
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Default Ls3 procomp heads!!!!!!!!

ANYBODY KNOWS HOW TO FIX THE PROBLEM OF THE ROLLER ROCKERS ON THE LS3 PROCOMP HEADS?


Old 02-08-2013, 01:40 PM
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Could you be more specific?
Old 02-08-2013, 07:22 PM
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Whats the issue?
Old 02-11-2013, 12:45 PM
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Default Pc3018 procomp electronics

I buy from procomp electronics part# pc3018 pair of bare ls3 heads

just finish the job on porting and when i start to build the motor i see on the rocker mounts is not flat.

These ls3 heads are raised runner design, the gm rocker stands doesnt fit
Old 02-11-2013, 01:32 PM
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Originally Posted by CASANOVA SPEED
I buy from procomp electronics part# pc3018 pair of bare ls3 heads

just finish the job on porting and when i start to build the motor i see on the rocker mounts is not flat.

These ls3 heads are raised runner design, the gm rocker stands doesnt fit
Could you provide a better pic? Its looks flat from my monitor.
Old 02-11-2013, 01:48 PM
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Looks like you might need to run Yella Terras or something similar without the stand.
Old 02-11-2013, 04:04 PM
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Originally Posted by CASANOVA SPEED
I buy from procomp electronics part# pc3018 pair of bare ls3 heads

just finish the job on porting and when i start to build the motor i see on the rocker mounts is not flat.

These ls3 heads are raised runner design, the gm rocker stands doesnt fit
Mill them flat.
Old 02-11-2013, 04:34 PM
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call the manufacture for a warranty.

Cheap crap is exactly that crap.

Last edited by Gray86hatch; 02-11-2013 at 05:22 PM.
Old 02-11-2013, 04:54 PM
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Originally Posted by Gray86hatch
call the manufacture for a warrany.

Cheap crap is exactly that crap.


yeah exactly

http://www.hotrod.com/techarticles/e.../photo_15.html
Old 02-11-2013, 06:57 PM
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Originally Posted by 1990LSx
That link/test has nothing to do with ProComp LS3 heads.
Old 02-11-2013, 07:00 PM
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Originally Posted by CASANOVA SPEED
I buy from procomp electronics part# pc3018 pair of bare ls3 heads

just finish the job on porting and when i start to build the motor i see on the rocker mounts is not flat.

These ls3 heads are raised runner design, the gm rocker stands doesnt fit
You're not the first person to run into this. Some of the rocker stand mounting bosses are higher than the rest. You will have to run an after market rocker that doesn't need the rocker stand.
Old 02-11-2013, 09:47 PM
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Originally Posted by LS1MCSS
That link/test has nothing to do with ProComp LS3 heads.
I dont recall him saying the LS3 heads specific more along the lines that Pro Comp is "cheap crap"
Old 02-12-2013, 04:21 AM
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Originally Posted by 1990LSx
I dont recall him saying the LS3 heads specific more along the lines that Pro Comp is "cheap crap"
The entire post was about LS3 heads.
Old 02-12-2013, 06:02 AM
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Lookup Cwarta on here and send him a PM... Hes battled this problem just recently and worked through it
Old 02-12-2013, 08:19 AM
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Alright are you ready for some words of wisdom to make you feel dumb like I did? Turn your stands around your trying to put them on backwards. Guaranteed. Lay the stands on the head and take a picture.
Old 02-12-2013, 06:27 PM
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i'm from mexico and is a problem to me make the return so that is not a option

the roller rockers aftermarket are so expensive and i think for what im putting together that is not necesary(6.2 rotatting assembly,6.0 iron block,ls3 heads,xer287 cam, carb intake basically for my daily driven 1966 chevelle)

i see on comp cams an upgrade kit 16765-kit they have a retro style whit a studs and guideplates but i think is not avaliable anymore this one i think they fit becuse are a single roller rocker stand, now i saw another brands but i think no ones make for this aplication becuse all the roller rockers aftermarket sit flat in pairs.

i already send him a pm to Cwarta i know he has the same problem but no answer back
and yes when i saw that answer about the stand are backwards l laughed to much Cwarta becuse the first thing you do is putting the stand on ones side or the other

call 4 or 5 times to procomp electronics and nobody can give me a really answer

go to the machine shop and cant make it flat on the head is to thin the intake runner basically is there

heres more pics


http://sphotos-f.ak.fbcdn.net/hphoto...12013617_n.jpg

i appreciate your help!!!!!!!

thanks
Old 02-12-2013, 06:28 PM
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heres another pic

Old 02-12-2013, 10:43 PM
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I understand completely what you are saying and going their. I fought with it and fought with it and then one day I realized that they are on backwards. I'm serious. The way they look like they should go on, they go the opposite
Old 02-12-2013, 10:53 PM
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Alright. Here is a picture of STOCK LS3 heads. As you can see, they are also "not flat" and the runner LOOKS like it will interfere with the rocker stands, and it WILL if the stands are not placed correctly.



Now I'm willing to bet that this is what you see when you try to install the rocker stands right?



Look carefully at the rocker stands in that picture. They are on backwards. On the bottom side of the rocker stand there is a machined bevel. THAT goes to the "outside" of the head.

Trust me, I've been there. It's so simple it's painfull.......
Old 02-13-2013, 10:02 PM
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Well whats the verdict?


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