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(Experts only, ahem Mixerda) About to order cam and heads

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Old 10-03-2009, 07:03 PM
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Default (Experts only, ahem Mixerda) About to order cam and heads

I am tearing my engine apart to fix some bent valves so i figured i might as well replace the heads and cam. I am thinking of using an ls6 cam and One of these two for heads.
http://www.jegs.com/i/Patriot+Perfor.../2013/10002/-1
http://www.jegs.com/i/Patriot+Perfor.../2015/10002/-1

I think these will work together but i am still new to this stuff. The other question i have is i knwo i will have to disable DOD but think i can get away with my 1.8 rockers or will i have ot go back to stock. And if so will the stock rockers be able to keep up?
Also from what i read, those head kits come with valves so that should solve my bent valve problem right?
Old 10-03-2009, 08:41 PM
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Assembled means it includes the valves, seals, springs, retainers, and locks. I have the PRC Stage 2.5 5.3L heads on my car with HS 1.8 rockers. Stock cam and lifters still.

http://texas-speed.com/shop/item.asp?itemid=84&catid=40

Similar I guess. I would return to stock 1.7 if you up the cam. HS might have a trade in thing, but you have miles on them so you might be sol and have to try and sell the old ones. 1.8s might work too, but PTV clearance needs to be checked. Pushrod length is a question. I dunno what size head gaskets you are going with, but I think someone needed to use 7.425 with a ls6 cam. You need new lifters and the ls2 lifter retainers.

Good luck!
Old 10-04-2009, 01:42 PM
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did you see any gains from heads?
know where i can get lifters from? and what do head gaskets run arent they like only 30$?
Old 10-05-2009, 01:02 PM
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I jsut talked to patriot. I am going with these heads.
https://www.patriot-performance.com/...p?productid=18
I am going to use my 1.8 rockers. Also i am going to pick up an 02 or up ls6 cam.

lift with that cam should come to 583 so i think that will be fine.

I know i will have to purchase longer push rods though. They are going to include all the gaskets i need. I guess the only other thing i will need will be lifters? And if thats true should i get the factory ones or ones that are not DOD. I plan on disabling DOD.

Anyone forsee any problems with this?
Old 10-05-2009, 01:49 PM
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disabling the dod are you going to try and run a ls6 intake? i know that one member got an ls2 intake to work. just curious cause i dont think it was the factory heads holding this motor back and it seems like a shame to run those heads and not come up with a solution for the intake.
Old 10-05-2009, 02:08 PM
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I already have my intake ported and i am going to get it ported further. I know that an ls6 intake is much less restrictive but from what i read, it requires a lot of custom work to get another intake to run. I dont have the money, skill, or time to figure it out. I am pretty sure its not just like chopping the dod stuff off.
Old 10-06-2009, 12:00 AM
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Cadillac racing lifters are pretty nice and can do more rpms (8-8500) than stock corvette etc ones before floating. Part 88958689. Around 300 bucks. I got a used set off ebay for a lot less.

http://www.sdparts.com/product/88958...esEngines.aspx

About the cheapest there.

12499225
LS Series Camshaft Lifter Kit
• Set of 16 lifters for LS series engines
• Same lifter used in LS2 and LS7

17803305
Lifter Guide Kit
• Includes (4x) lifter guides and (4x) bolts
• Makes for quick and easy cam swaps without having to
remove the intake manifold, valley plate or heads
• Works in Gen III and IV applications (except with AFM)

or

LS2 Lifter Guides 12595365 (Qty 4 req)
Bolts 12551163 (Qty 4 req)

12570471 valley cover

Last edited by neilownz; 10-06-2009 at 12:06 AM.
Old 10-06-2009, 12:14 AM
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wait a tick, will i need new guides as well?
Old 10-06-2009, 12:19 AM
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Yea the 4 you have now have different sized guides for the dod lifters so they can expand or whatever to close the cylinder off. It's like $25 for the set anyways. They are just plastic.
Old 10-06-2009, 03:59 PM
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new lifter guides - yes
if your disabeling the DOD and replacing the cam might as well replace the lifters to because no sense having the xtra mech workings when ya don't need em, just something else to break...trust me building up the motor just to have a dod lifter die and have to tear the motor back down was not fun.

I'll look for my old order papers and PM ya where I got everything

Check with the dealership and find out what cam is currently in your car now, I'll see if I can find those part numbers as well. 06- was ls1/6 3 bolt reluctor gear 07+ was ls2 single bolt style...Atleast in my car that was the case, not sure about GXP part numbers but I'd assume same case.

I haven't got to complete my intake swap since I've been busy with school(mon-tue-wed-thur) & work(fri-sat-sun)...sucks *** no time off is taking a mental toll on me lol. I get no time to play with the car anymore, if your getting rid of the DOD and have someone who can do machine work have them fab up a plate to replace your DOD valley cover. Move the oil pressure sender down to either the oil filter boss or add in a sandwich plate(what I'm gonna have done) that will resolve all the clearence issues with the dod nub up top, don't need the dod equipment if not in use eh? I still haven't gotten around to getting it all done but thats all I have left to do prob max 1 weekend of work but always busy no down time allowed at current moment in life. The map sensor can fit on the rear of the intake between it and the PS res, the air bleed pipe has to bent a little but nothing to harsh. At some point maybe X-mas break I'll have a chance to finish all this up and say yea it works.
Old 10-06-2009, 07:23 PM
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its like a whole nother forum down here, sn's ive never seen before
carry on gent's
Old 10-10-2009, 08:32 AM
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do i really need a new valley cover? mine should be fine plus its a 150$
Old 10-10-2009, 12:19 PM
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No you don't need it but it makes a little more room if you end up messing with the intake manifold. 150 damn you can get one for less than 100 at a part site.
Old 10-10-2009, 01:58 PM
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if i start messing with a different intake i will replace it than, cause at this point every day i find out i need a new part or gasket or something
Old 10-15-2009, 04:02 PM
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Think there is any difference between these and the caddie lifters? The one below includes all the guides and stuff.
http://www.summitracing.com/parts/NA...2/?image=large
Old 10-16-2009, 12:01 AM
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Lunati and Comp Cams both make LS lifters that are under 200 bucks.
Old 10-16-2009, 12:37 PM
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i ordered the heads, cam and set my apt for the work and tune. Now i just need to decide on the lifters. I talked to three different people and all three said there is no reason to run upgraded lifters if i am not revving about 6500. So i am thinking the ones below cause they include all the parts like trays and stuff
http://www.summitracing.com/parts/NA...2/?image=large

but i contact lunati and they have these
http://cgi.ebay.com/ebaymotors/LUNAT...241810002r9529
they are tie bar lifters, anyone know if thats a good idea?

Also do i need new trays as well?

Last edited by Sittingmongoose; 10-16-2009 at 12:50 PM.
Old 10-16-2009, 01:08 PM
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never mind i found that the trays and guides are the same thing. I ordered the 1 bolt to 3 bolt conversion kit for my cam and lifters and trays from lingenfelter. I went with oem ones because 5 different people all said they are the same thing and its not nessary to run anything other than stock unless you are using a crazy set up like supercharging or turbos.

Now i just need to play the waiting game for the parts to come in.
Old 10-16-2009, 01:18 PM
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Default rebuild project

Can you give us a summary of your ordered parts? Who is doing your tune?
Old 10-16-2009, 02:01 PM
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Hmm i thought the stock 243's were enough. The seem to work real well with the ls2's, and they can make some good power ported as well. Interested to see your #'s though. When i traded in my GXP the most courageous anyone really got was replacing the rockers, unless you count the turbo kit.


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