What makes morel lifters superior to ls7s?
01-20-2015, 06:55 PM
#1
What makes morel lifters superior to ls7s? I've been looking into lifters for when I put my heads on my car and everything I read says morels are better than ls7s. What makes them better? I'll be doing ported ai heads and was told I should use stock replacements which are ls7s according to the part number I was given.
to bad they are back ordered because of the holidays 
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LS CHEVY II (12-20-2020)
01-20-2015, 08:06 PM
#7
bigger. badder. better.
bigger=better! everyone knows that! except when it comes to bearing clearances....usually that becomes a bad sign...
@josh4ku rock on!
@op I dont have a side by side comparison of them. These have a billet body and larger wheel which makes them very solid. The non tie bar ones might just have better internals/valving than a normal LS7 lifter. Better materials.
bigger=better! everyone knows that! except when it comes to bearing clearances....usually that becomes a bad sign...
@josh4ku rock on!
@op I dont have a side by side comparison of them. These have a billet body and larger wheel which makes them very solid. The non tie bar ones might just have better internals/valving than a normal LS7 lifter. Better materials.
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01-21-2015, 07:47 AM
#10
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The higher end Morals (as opposed to their "Street") are billet steel vs cast metal, better tolerances and a larger roller wheel. The valving also resists "pump up" at high RPM.
01-21-2015, 08:34 AM
#11
I would also add that bores and cups are match sized to a certain spec.
01-21-2015, 07:19 PM
#15
Define "better steel"?
My angle here has nothing to do with Morel, and everything to do with ignorant folks posting pictures of shiny things and comparing apples and oranges like using the billet bodies or linkbars as comparison to GM stuff when the OP was asking about lowerend dropin stuff.
My angle here has nothing to do with Morel, and everything to do with ignorant folks posting pictures of shiny things and comparing apples and oranges like using the billet bodies or linkbars as comparison to GM stuff when the OP was asking about lowerend dropin stuff.
01-22-2015, 06:46 AM
#17
Define "better steel"?
My angle here has nothing to do with Morel, and everything to do with ignorant folks posting pictures of shiny things and comparing apples and oranges like using the billet bodies or linkbars as comparison to GM stuff when the OP was asking about lowerend dropin stuff.
My angle here has nothing to do with Morel, and everything to do with ignorant folks posting pictures of shiny things and comparing apples and oranges like using the billet bodies or linkbars as comparison to GM stuff when the OP was asking about lowerend dropin stuff.
01-22-2015, 09:54 AM
#18
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They are both apples. The one apple just costs more for the quality difference. Your other two apples are not substantively different. Most get "street" versions of Morel/Lunati to get the link bar and eliminate the tray but for those drop-ins it's six of one, half dozen of the other.
01-22-2015, 03:57 PM
#19
I have attached 4 large pictures here that show visual differences. The Morel 5315 is on the left, the LS7 lifter is on the right. The pic is of a Oct 2014 Morel build date and the LS7 was built this year, I am not sure on the exact build date.
The LS7 lifters are great for stock RPM and head/cam. The 5315s are nicer as you can tell by the pictures and are usually good up to 7200 RPM safely.
The internals are a lot better too. I'll see if I can bust one open with a sledgehammer.
The LS7 lifters are great for stock RPM and head/cam. The 5315s are nicer as you can tell by the pictures and are usually good up to 7200 RPM safely.
The internals are a lot better too. I'll see if I can bust one open with a sledgehammer.
01-22-2015, 05:32 PM
#20
I have attached 4 large pictures here that show visual differences. The Morel 5315 is on the left, the LS7 lifter is on the right. The pic is of a Oct 2014 Morel build date and the LS7 was built this year, I am not sure on the exact build date.
The LS7 lifters are great for stock RPM and head/cam. The 5315s are nicer as you can tell by the pictures and are usually good up to 7200 RPM safely.
The internals are a lot better too. I'll see if I can bust one open with a sledgehammer.
The LS7 lifters are great for stock RPM and head/cam. The 5315s are nicer as you can tell by the pictures and are usually good up to 7200 RPM safely.
The internals are a lot better too. I'll see if I can bust one open with a sledgehammer.
The morel could use some deburring at the oil hole in the first pic.
Based on the pics I can see that argument going either way but then I am looking at the pics. All too often pics are posted and BLINDLY drooled over, in another section a guy posted head pics that were plain as day milled crooked end to end, based on the chamber features probably .030" crooked. 80 replies and nobody called out the obvious flaw in his "awesome" heads because a popular vendor's name was attached and people had their beer goggles on.
This is not to say that in hand there isn't a big difference, some blurry pics posted on the internet don't always do a quality product justice but can sometimes expose a shoddy one.