Duramax Diesels Forum Truck of the Week
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Old 03-12-2019, 07:40 AM
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Default Lets talk heads

Lets say someone was in the market for new heads because this person is fairly certain the driver side head is cracked. said vehicle is a LLY, not turning high rpm, tows regularly and the guy/girl behind the wheel is retarded

Staying stock due to his/her budget reasons, who has decent priced well remanned heads? or even an updated casting if available?
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Old 03-12-2019, 08:11 AM
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not to rain on this guy/girls parade but its a little bit humorous that this guy/girl decided to convert to LLY to avoid LB7 injectors because that's what they are known for and decided to switch to a LLY which is known for headgasket problems and then blows a headgasket
that's all i have to say about that, carry on
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Old 03-12-2019, 08:15 AM
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Originally Posted by OregonDMAX View Post
not to rain on this guy/girls parade but its a little bit humorous that this guy/girl decided to convert to LLY to avoid LB7 injectors because that's what they are known for and decided to switch to a LLY which is known for headgasket problems and then blows a headgasket
that's all i have to say about that, carry on
i totally agree other than it aint a HG thats gone....
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Mike L is my role model. I want to be like him when I grow up.
James

02 LB7, LLY, LBZ, LMM, LML, L5P 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
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Old 03-12-2019, 08:17 AM
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Originally Posted by Chevy1925 View Post
i totally agree other than it aint a HG thats gone....
the main word in headgasket is head
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Old 03-12-2019, 08:18 AM
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Edelbrock?
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Old 03-12-2019, 08:19 AM
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I've found that good remanned heads for my LB7 run $1,200-1,400 from a shop I trust, ready to run. That includes surfacing, recess the valves as needed, pressure test, valve guides as needed, seals, etc. I imagine LLY heads would be very similar.

My brother and I were talking about putting L5P heads on his LB7, but when you add up the various required hardware, it is cheaper to just stick with reman heads, even though the bare L5P castings are shockingly cheap.

I have Wagler aluminum heads on my truck, and the total cost of ownership has actually been quite competitive. If you are reusing your stock valves and springs, grab their castings and bolt it all together. I went through a few SoCal Stage 1 LB7 heads, and even though the SoCal heads were "cheaper", by the time I add in the 3 sets of head gaskets, fludis, and incidentals, the Waglers were cheaper, ignoring labor! I suspect this person you're asking for will be doing their own labor, but doing it once sure beats doing it twice.

I would strongly suggest getting the Wagler castings if possible, and using your stock valves/springs to keep costs reasonable. They are a very well designed casting, and much stronger than stock Duramax heads, especially if you port a stock head. Plus, they flow quite well, even as-cast.

That said, it is unclear if Wagler is still making their aluminum castings anymore. I can't find anyone claiming they are in stock, or even the Brodix branded ones. It might be worth a phone call to Wagler to see.
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Old 03-12-2019, 08:36 AM
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Quote:
Originally Posted by OregonDMAX View Post
the main word in headgasket is head
you shut your mouth

Quote:
Originally Posted by Ne-max View Post
Edelbrock?
they dont make them for lly....

Quote:
Originally Posted by DAVe3283 View Post
I've found that good remanned heads for my LB7 run $1,200-1,400 from a shop I trust, ready to run. That includes surfacing, recess the valves as needed, pressure test, valve guides as needed, seals, etc. I imagine LLY heads would be very similar.

My brother and I were talking about putting L5P heads on his LB7, but when you add up the various required hardware, it is cheaper to just stick with reman heads, even though the bare L5P castings are shockingly cheap.

I have Wagler aluminum heads on my truck, and the total cost of ownership has actually been quite competitive. If you are reusing your stock valves and springs, grab their castings and bolt it all together. I went through a few SoCal Stage 1 LB7 heads, and even though the SoCal heads were "cheaper", by the time I add in the 3 sets of head gaskets, fludis, and incidentals, the Waglers were cheaper, ignoring labor! I suspect this person you're asking for will be doing their own labor, but doing it once sure beats doing it twice.

I would strongly suggest getting the Wagler castings if possible, and using your stock valves/springs to keep costs reasonable. They are a very well designed casting, and much stronger than stock Duramax heads, especially if you port a stock head. Plus, they flow quite well, even as-cast.

That said, it is unclear if Wagler is still making their aluminum castings anymore. I can't find anyone claiming they are in stock, or even the Brodix branded ones. It might be worth a phone call to Wagler to see.
honestly id love to L5P but the machining and little things here/there id run into will cause too much of a hinderance on me. My wife would kill or divorce me if i spent a month working on the truck and trying to piece together that setup.

im not against that if Jeremy still has/gets those. im running hamilton springs so id swap those on either head. bare casting is something ive highly considered.



cats out of the bag on who it is
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Mike L is my role model. I want to be like him when I grow up.
James

02 LB7, LLY, LBZ, LMM, LML, L5P 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
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Old 03-12-2019, 08:55 AM
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I'm literally crying over here James, lol!!! Too bad the Edelbrock route isn't available yet because that would be a good way to go other than a completely stock replacement.
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Old 03-12-2019, 10:10 AM
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What about an LMM head? Wasn’t the coolant passages changed on LBZ or LMM?
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Old 03-12-2019, 10:19 AM
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What all does it take to get the L5P head on an older block?
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Old 03-12-2019, 10:23 AM
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Quote:
Originally Posted by bigmackmiller View Post
What all does it take to get the L5P head on an older block?
Someone to try it
Drill a couple holes for the clam shells. Not sure on the exhaust side. Either run L5P injectors or have the head cnc’d to accept your injectors
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Old 03-12-2019, 10:27 AM
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I have a pair of stock LBZ heads you could take to Larry's. Last set i had done there i think was $830 for new seals/guides/seats cut/flattened/vac tested.
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Old 03-12-2019, 10:45 AM
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Quote:
Originally Posted by gmduramax View Post
Someone to try it
Drill a couple holes for the clam shells. Not sure on the exhaust side. Either run L5P injectors or have the head cnc’d to accept your injectors
basically this. its the machining part to run LLY injectors i cant wait on.

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Originally Posted by SSchmi5519 View Post
I have a pair of stock LBZ heads you could take to Larry's. Last set i had done there i think was $830 for new seals/guides/seats cut/flattened/vac tested.
Yeah thats usually what Larry charges me but Sean Jager has a couple heads hes dropping off to be checked today. If they check out, im going to go that route. just need to find him a good used LLY head
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Mike L is my role model. I want to be like him when I grow up.
James

02 LB7, LLY, LBZ, LMM, LML, L5P 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
Tailgate Crew Member #4
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Old 03-12-2019, 01:24 PM
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Quote:
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Edelbrock?
Has anyone flow tested them?
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Old 03-12-2019, 02:05 PM
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I still have a couple of heads available for core. No idea on true condition but I would imagine that at least one is ok/rebuildable.
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