Big block chevy Hyd roller lifters - Chevelle Tech
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  #1  
Old Feb 20th, 12, 11:40 PM
chevhell68 chevhell68 is offline
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Default Big block chevy Hyd roller lifters

Ok so two years ago I did a cam and spring upgrade but broke a head car has been sitting since. Back then it was these Morel lifters that were the cats pajamas and now two years later it looks like maybe they aren't quite up to snuff? They are the 400 dollar set. Thought i had the good ones but alas I do not. Good news is they only have about 300 miles on em and I didnt find out the hard way they weren't the best for my application. Cam is a 235 240 .61 lift hyd roller in my 396. Well I also have a 496 going together and am waiting for a special order from mike AFR 290's hell yeah. Putting them on my 396 while the other engine gets finished over the next couple months. So will the old lifters be fine for now seeing the track maybe three times before the 496 and bigger cam and of course better lifters? A few days and weekends of driving or are they really proven to not be strong enough for a somewhat fun cam like mine. Whats everyone running now adays for hyd roller? If I need to change then here comes the solid or hyd torment in my head lol Never ran solid and just dont know what Id be getting into as far as adjustment and what not. Anyway lets stick with the hyd roller for now ...... The new morels all I would need. can always do a solid another time and at least have the lifters ready to transfer over to the new engine soon.
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  #2  
Old Feb 20th, 12, 11:50 PM
Wolfplace Wolfplace is offline
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Default Re: Big block chevy Hyd roller lifters

Quote:
Originally Posted by chevhell68 View Post
Ok so two years ago I did a cam and spring upgrade but broke a head car has been sitting since. Back then it was these Morel lifters that were the cats pajamas and now two years later it looks like maybe they aren't quite up to snuff? They are the 400 dollar set. Thought i had the good ones but alas I do not. Good news is they only have about 300 miles on em and I didnt find out the hard way they weren't the best for my application. Cam is a 235 240 .61 lift hyd roller in my 396. Well I also have a 496 going together and am waiting for a special order from mike AFR 290's hell yeah. Putting them on my 396 while the other engine gets finished over the next couple months. So will the old lifters be fine for now seeing the track maybe three times before the 496 and bigger cam and of course better lifters? A few days and weekends of driving or are they really proven to not be strong enough for a somewhat fun cam like mine. Whats everyone running now adays for hyd roller? If I need to change then here comes the solid or hyd torment in my head lol Never ran solid and just dont know what Id be getting into as far as adjustment and what not. Anyway lets stick with the hyd roller for now ...... The new morels all I would need. can always do a solid another time and at least have the lifters ready to transfer over to the new engine soon.
You will most likely get the usual internet BS "I have used xxx with no problem therefore they are just fine" crap
You are welcome to take this kind of advice
Or you can take the advice of people that have seen more than one set of lifters & or talk to people on a daily basis that actually know the facts

My advice:
I would recommend you cut your losses now on the cheap lifters for this application
Might get lucky,,, might not
And the might not can get very very expensive
I would use either the good Morel's or the Crane hyd roller lifters
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  #3  
Old Feb 21st, 12, 12:31 AM
steelcomp steelcomp is offline
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Default Re: Big block chevy Hyd roller lifters

I didn't know Morel had a "cheap" hyd. roller.
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Old Feb 21st, 12, 12:37 AM
Tom Mobley Tom Mobley is offline
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Default Re: Big block chevy Hyd roller lifters

depends on what you mean by "cheap" I guess. they have two different price levels of lifters.
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  #5  
Old Feb 21st, 12, 12:46 AM
chevhell68 chevhell68 is offline
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Default Re: Big block chevy Hyd roller lifters

Ok very cool thanks mike. May be sending another check lol
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  #6  
Old Feb 21st, 12, 12:46 AM
crazydavey crazydavey is offline
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Default Re: Big block chevy Hyd roller lifters

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Originally Posted by Tom Mobley View Post
depends on what you mean by "cheap" I guess. they have two different price levels of lifters.
actually they have 3 levels....the "cheap" lifters are simply their street lifters that are suggested for milder cams probably below 240 and 600....they are not cheap by street lifter standards. The main difference is in the bodies, wheels and bleed down rates...the Sportsman is their most common performance hyd lifter and they also have a ultra version that is a hyd in spirit only...
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Old Feb 21st, 12, 12:48 AM
steelcomp steelcomp is offline
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Default Re: Big block chevy Hyd roller lifters

Quote:
Originally Posted by crazydavey View Post
actually they have 3 levels....the "cheap" lifters are simply their street lifters that are suggested for milder cams probably below 240 and 600....they are not cheap by street lifter standards. The main difference is in the bodies, wheels and bleed down rates...the Sportsman is their most common performance hyd lifter and they also have a ultra version that is a hyd in spirit only...
When you say the "street" lifter, do you mean one with the full body and the .700 wheel, like an OEM direct replacement?
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  #8  
Old Feb 21st, 12, 12:53 AM
Wolfplace Wolfplace is offline
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Default Re: Big block chevy Hyd roller lifters

Quote:
Originally Posted by steelcomp View Post
I didn't know Morel had a "cheap" hyd. roller.
Yes they have a street lifter that is about $375
It is nothing but an upgraded stock type lifter with the small .700 roller & cast body

Morel never intended for this to be sold as a performance lifter & both Chris & myself have been doing our best to "get the word out" for years now because there were cam companies that were recommending this lifter in some insane applications,,

Apparently even most of the folks at this company have finally seen the light when it comes to a Rat with the spring pressures needed to control the valve train in a performance application,, or so I have heard & are now recommending the better lifter
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  #9  
Old Feb 21st, 12, 2:31 AM
chevhell68 chevhell68 is offline
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Default Re: Big block chevy Hyd roller lifters

Have to get the dial calipers out and check the wheel as I dont see a part number on the lifter itself. I know that I did not pay 600 bucks two years ago as I did not have the play money then. So Im fairly sure Its going to be the street lifter and I am not taking a chance. Missed my car the last two years do not want to break it again!

Thanks guys
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  #10  
Old Feb 21st, 12, 5:56 AM
Malibu ss 64 Malibu ss 64 is online now
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Default Re: Big block chevy Hyd roller lifters

I think you can see the difference on the street serie the body goes over the wheel and on the sportsman theres openings so you can see the whole wheel. I can post pics later if you want.

Marcus

Quote:
Originally Posted by chevhell68 View Post
Have to get the dial calipers out and check the wheel as I dont see a part number on the lifter itself. I know that I did not pay 600 bucks two years ago as I did not have the play money then. So Im fairly sure Its going to be the street lifter and I am not taking a chance. Missed my car the last two years do not want to break it again!

Thanks guys
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  #11  
Old Feb 21st, 12, 6:38 AM
z15cam z15cam is offline
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Default Re: Big block chevy Hyd roller lifters

It all depends on how high are you spinning the mill. Hydraulic lifters in a BBC with that Heavy Valve train whether HFT or HR, by design and lower spring pressure, can not spin much above 6200rpm with out issues. Small & Mid cubed BBC's like to rev and should, in my opinion, have SFT or SR's, where as Big Cubed BBC's 496 and over are torque monsters below 6200rpm are more suited for HR's.

You can't run much more then 150/450psi springs with a HR where as 200/500psi is considered a relatively mild street application for SR's. Disregarding cam profile design for now but as the revs increase which spring is going to keep the lifter riding the lobes best and in the case of a HR not allow the lifter to pump up.

If you're shooting for 6500rpm with a BBC and running a HR cam you will have issues, in my opinion.
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Old Feb 21st, 12, 8:52 AM
mr 4 speed mr 4 speed is offline
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Default Re: Big block chevy Hyd roller lifters

the street roller lifters look just like oem rollers which have the wheel encapsulated but have the taller body to accomodate the link bars.The biggest cam you can use pretty much is the ZZ502 cam which has lobes designed for the smaller oem style wheel.
Chris Straub and Mike(Wolfplace) have been great getting all this info out there to us gearheads!
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Old Feb 21st, 12, 8:52 AM
69 Malibu 69 Malibu is offline
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Default Re: Big block chevy Hyd roller lifters

I ran those lifters with a 241/249 .625 Lunati. Lucky I checked on them, they were coming apart, axles walking out. The full body, small wheel just won't cut it with an agressive cam. I got lucky. Got the good ones in there now.
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Old Feb 21st, 12, 9:00 AM
cstraub cstraub is offline
 
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Default Re: Big block chevy Hyd roller lifters

The Street Morels are an encapsulated wheel. The body of lifter surrounds the wheel. These were designed to complete with the cheap lifters and used on OEM type up grade cams like the GM hot cam.

The Sportsman, my verbage for it, and the Ultra Pro lifters both have .750" wheels on the .842" body stuff and will take what you put under them. Either of these will run with over 200# seat pressure and 500# open load.
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  #15  
Old Feb 21st, 12, 9:05 AM
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Default Re: Big block chevy Hyd roller lifters

Chris,

How come we dont have a rash of failures with the OE GM lifters with the encapsulated body? I ran the sh!t out of them along with some other guys I know w/o issue - ever. When I replaced the GM lifters with $$$ Cranes, I got no appreciable increase in performance, or quietness.
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