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Old May 18, 2015 | 10:15 AM
  #21  
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Originally Posted by ajrothm
I own 2 solid roller BBCs... I'm fully versed in solid roller stuff.... For something you drive a lot and idles a lot...lets just say a hyd roller is usually easier to live with.... Especially on a combo that is 7200 rpm or less in a LS platform.

You start eating lifters and pumping metal through the motor, you'll think about running a solid on a weekly driven car that gets a bunch of miles.

The adjustment of the rockers isn't ****.... Its the lifter maintenance that is the pain in the ***.... Especially having to pull heads on an LS to get the lifters out.
Alot of the lifter issues come from the spring pressure you have to run on a traditional solid roller. The low-lash stuff needs alot less spring, like 200 on the seat and 550 open. Only problem is finding a spring in that range that fit on a ls style head, lol.
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Old May 18, 2015 | 11:09 AM
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Originally Posted by FN FAST
Alot of the lifter issues come from the spring pressure you have to run on a traditional solid roller. The low-lash stuff needs alot less spring, like 200 on the seat and 550 open. Only problem is finding a spring in that range that fit on a ls style head, lol.
The PAC 1209 will get you close. They're 160/510 and with their .750" lift ability, can be shimmed to 200 closed if your lift is under that.
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Old May 18, 2015 | 11:12 AM
  #23  
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Originally Posted by FN FAST
Alot of the lifter issues come from the spring pressure you have to run on a traditional solid roller. The low-lash stuff needs alot less spring, like 200 on the seat and 550 open. Only problem is finding a spring in that range that fit on a ls style head, lol.
Yeah that and the splash oiling required for the rollers to keep them alive at idle..which normally requires 1000-1100 rpm idle speeds, and even then its hard on them to idle a lot.... Which in Houston, is gonna happen.

Isky Red Zone rollers and Morels are the best, I prefer the Red zones... at $1k a set, they are pricey. Some of my solid roller buddies have two sets, one in the car and one ready to go in so you can send the ones in the motor back to Isky or Morel for annual rebuilding..

All depends on how much you drive the car and how **** you are about maintenance. On a BBC, its not that big of a deal to pull the intake and yank lifters out once a year for a rebuild, its a lot more work on an LS.

The tight lash/LS stuff may not be as needy in regards to inspections/rebuilds....I'm not sure as I don't have any solid LS stuff but...Its more then I am willing to mess with on an LS motor that can easily spin to 7200-7300 with hyd rollers... (Yes you can make more power under the curve with the solid as well but...usually a non issue on blower/turbo stuff)..

Guys making 1200+ rwhp and spinning 7K+ on LS7 lifters for $100 a set, throw em in and forget em.
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Old May 18, 2015 | 11:45 AM
  #24  
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Originally Posted by FN FAST
Alot of the lifter issues come from the spring pressure you have to run on a traditional solid roller. The low-lash stuff needs alot less spring, like 200 on the seat and 550 open. Only problem is finding a spring in that range that fit on a ls style head, lol.

Once to move to a few certain aftermarket heads.

You really open up the spring options.
My heads have some Manley circle track nitrated 1.55 diameter spring.
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Old Mar 3, 2016 | 09:58 PM
  #25  
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would the extra noise the valvetrain makes contribute to knock retard and how much of that can you tune out without sacrificing safety?
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Old Mar 4, 2016 | 02:11 PM
  #26  
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Originally Posted by russ472
would the extra noise the valvetrain makes contribute to knock retard and how much of that can you tune out without sacrificing safety?
The extra noise of a hydraulic roller?


Because a solid roller car is actually a lot quieter..

It doesn't have that lifter tick or sewing machine noise most ls cars have.
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Old Mar 4, 2016 | 07:06 PM
  #27  
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Originally Posted by Blackonblacksls
The extra noise of a hydraulic roller?


Because a solid roller car is actually a lot quieter..

It doesn't have that lifter tick or sewing machine noise most ls cars have.
I haven't heard a LS engine with a solid roller, so I was assuming they are like every other engine having a much louder valvetrain.
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