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Old 12-18-2002, 11:53 AM   #1
mikep
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Hydraulic roller lifters

I'm working a lot more than I like tolately which of course means I have more money to spend on crap.

What is the consensus on retrofit hydraulic roller lifters? I have heard a few bad things about the comp cams hydraulic rollers. Can anyone back this up? What about the crane hydraulic rollers?

If no one makes a reliable aftermarket hydraulic roller what is the consensus on late model 4 bolt blocks? Are they any good.Ive never used a roller lifter block.
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Old 12-18-2002, 12:11 PM   #2
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I too would be interested in anyones opinion as I want to go Roller Hydraulic with the 454 I'm building
Thanks for starting this post Mikep
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Old 12-18-2002, 12:47 PM   #3
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I use Comp Cam Hydralic roller lifters, and I went through a set of them. They almost all colloapsed. But the new set has been working great. Remember to soak them in oil prior to assembly.

Next thing is that the cam last along time. And they definately free some ponies.
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Old 12-18-2002, 02:28 PM   #4
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Did Comp Cam replace them or did you have to buy a second set? How long did they last before collapsing?
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Old 12-18-2002, 11:47 PM   #5
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The retro-fit roller lifters are expensive and very hard to get. I think there's only one company making them now for Crane, Comp, Lunati, etc. As for the late model blocks, I'm building one now. Make sure you get a roller cam block -- many truck blocks had flat tappet cams and don't have the lifter retainer bosses. Also, some later blocks don't have a fuel pump pushrod hole. OE-style roller lifters (Melling) are maybe $115 a set and you don't have to mess around with thrust bearings. There is pretty good selection of cams now, and even stroker cranks. Oh, yeah -- the dip stick is on the passenger side.
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Old 12-19-2002, 01:49 AM   #6
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what you can't just put a set of roller lifters in a regular 350 4 bolt main without modifications?
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Old 12-19-2002, 01:53 AM   #7
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yea u can put roller lifters into an old block without mods but the lifters are around 350 bucks a set and the cams are usually about 300 bucks so by the time its all said and done ur looking at probably over 800 bucks on a cam change
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Old 12-19-2002, 01:59 AM   #8
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Ah screw that then. Im broke
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Old 12-19-2002, 01:14 PM   #9
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Try this on. It's a 350 from a '98 Z71 4x4. Paid $300 for the engine. Swapped out the cam and changed other components to make it work with a tin timing cover and carburation. (Anyone want the fuel injection stuff (intake, pcm, breather)? free to a good home). I've since replaced the fan shroud. Engine had about 90k on it and the lifters still looked good.
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Old 12-19-2002, 02:47 PM   #10
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hey Blue sent you a PM
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Old 12-19-2002, 07:18 PM   #11
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I saw some crane roller lifters in Summit (or was it jegs?) that said they slid right into a 55-00 SBC block with no problems. I was also thinking of upgrading, although i doubt i will do it anytime soon.
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Old 12-19-2002, 08:29 PM   #12
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from all i've heard those hyd rollers are good up to around 6500rpm and then they start having troubles... but most street motors wont see that anyways. the retro fit ones are costly but i'm told you can change your block around so you can use the OE style ones that are far cheaper.

Also for another thought solid rollers are damn nice and reliable... however there is some controversy regarding adjustment.. some say you gotta check pretty regularly and others i've talked to said if you use good poly locks and some other stuff you can just run em for a long while before adjustment 30k + supposedly... i'm unsure though but my block WILL be roller...
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Old 12-19-2002, 08:38 PM   #13
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Your going to have some troubles over 6500 rpm with any hydraulic lifter. I wonder if it would be possible to convert an early block to use the OEM hydraulic roller lifter retainers. It doent look that difficult. Drill into the area over the cam and tap it and mount a boss . Do it in conjunction with epoxy and I bet it would stay forever.
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