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Old 02-10-2005, 11:05 AM
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Default 6.0L Heads

I finally got my heads from Absolute. But they are bare with only valves.

I will need to order a spring kit, rocker arms, studs, bolts and gaskets.

Couple q's

1. Can I just buy and use stock rockers and studs on these heads?
2. Anything else I need to buy?

I am thinking about just selling these and buy some fully assembled heads and not deal with this.

Heads
Old 02-10-2005, 12:05 PM
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It's really not a headache at all.

I would use the stock rockers unless you have some money you needed to get rid of. You still have the stock rocker bars/locators?

Then I'd buy the Patriot Gold springs. I don't know if the springs come in a kit with locks and retainers, but you'll want them. Get the Ti retainers.

Then make sure you have the correct length pushrods.
Old 02-10-2005, 12:36 PM
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I don't have any of the valvetrain except for the valves.

That is why was thinking about buying another set of heads.
I am guessing I will be spending another $500-800 to complete these. But I can spend another $800 and get a fully assembled set. :dunno:

Then sell this set.
Old 02-10-2005, 12:46 PM
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Even an assembled set doesn't come with the rockers and rails...
You're going to pay just about the same for the springs and retainers on the assembled set minus a few bucks.

Are you replacing the heads on your current ride? or is this a new buildup?
Old 02-10-2005, 12:53 PM
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You know you are right. I am just so flustered with Jay.

So I can just pull them off of my current set of 5.3L heads and use them?

I am replacing my 5.3L with 6.0L

Thanks for the help.
Old 02-10-2005, 01:02 PM
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Originally Posted by Ed Blown Vert
You know you are right. I am just so flustered with Jay.

So I can just pull them off of my current set of 5.3L heads and use them?

I am replacing my 5.3L with 6.0L

Thanks for the help.
Yes, you just need springs, retainers and locks. Use the rockers that are currently on your motor now.
Old 02-10-2005, 01:06 PM
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Thanks guys, I imagine I can also reuse the stock pushrods.
Old 02-10-2005, 01:11 PM
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Check the preload, but there's a good chance they'll be just fine.
Old 02-10-2005, 01:21 PM
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Thanks guys
Old 02-22-2005, 10:06 PM
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Just got them flowed. 315 @ .550

Shop has me worried. Said that that too much material was removed and velocity at low rpms might suffer.
Old 02-22-2005, 10:10 PM
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Yeah, to get big #s like that you have to remove a pretty good amount of material. As long as the low/mid #s are good you should be fine.
Old 02-22-2005, 10:16 PM
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I'll have the shop fax over the sheet and see what they are. Thanks.
Old 02-22-2005, 10:21 PM
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I had a 230/236 cam and ran Y/T rockers, Comp 7.400 pushrods, and Crane 893 double springs.

I have a set of used 893's if you are hurting, I would just get them checked.
Old 02-22-2005, 10:28 PM
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Originally Posted by Ed Blown Vert
I'll have the shop fax over the sheet and see what they are. Thanks.

What kind of bench, bore size and pressure were used to flow?
Old 02-22-2005, 10:32 PM
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Originally Posted by Ed Blown Vert
I finally got my heads from Absolute. But they are bare with only valves.

I will need to order a spring kit, rocker arms, studs, bolts and gaskets.

Couple q's

1. Can I just buy and use stock rockers and studs on these heads?
2. Anything else I need to buy?

I am thinking about just selling these and buy some fully assembled heads and not deal with this.

Heads
Ed, it is not a problem at all we have spring sets in stock as well as keepers. If you want we can also assemble for a small fee. BTW 315 @ .550 is a good number. I would not be to worried. You should be good if they are going on a 4 inch bore engine.

BTW springs,titanium retainers,cups and seals are 289.00 (PRC Kit) keepers are about 20.00 and we do not charge for shims. It shouldn't be hard to have them set up locally to you either. Just get around 140 on the seat (you will lose 10 psi after first heat cycle) and you should be good to go. (about 1.78 install height)
Brent

Last edited by BrentB@TEA; 02-23-2005 at 06:24 AM.
Old 02-22-2005, 11:25 PM
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I think Brent made a typo, the spring kits are $289.00
Old 02-22-2005, 11:29 PM
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Not sure on the specs with the bench, but I will ask.

I have already ordered my spring kit. The heads should be complete hopefully in about 2 weeks. I am going to also have them CCed.

I don't mind spending the money. Just not twice.

Thanks alot guys.
Old 02-23-2005, 06:24 AM
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Originally Posted by Terry@RacetechSpeed
I think Brent made a typo, the spring kits are $289.00
I shouldn't type in my sleep!
Old 02-23-2005, 08:47 PM
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Ed, you gonna post the flow sheets?
Old 02-23-2005, 09:03 PM
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Glad to hear you got the heads ( finally )! You have the patience of Job IMO.
Can't remember what motor you have, just keep in mind the flow rates when choosing a cam. It shouldn't affect ya too much.



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