S & S lifter cuff compatibility
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Seasoned HDF Member
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From: Ottawa, Ontario
S & S lifter cuff compatibility
I remember reading somewhere here couple of days ago, where someone stated that fueling did not recommend the use of S&S lifter cuffs with the fueling lifters.
I checked both of their websites and there's no mention of any compatibility issues.
Is this a thing?
I checked both of their websites and there's no mention of any compatibility issues.
Is this a thing?
Cruiser
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Memory loss? Yea, its something that we all have, especially as one ages
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From: Charleston, SC
Paraphrasing here: The aftermarket metal cuffs can wear from the lifter rubbing against it sending metal down the lifter bores and into the cam chest.
No longer recommended until Feuling finishes their redesigned cuff (coming out sometime?).
It was mentioned in a Thrashin Supply video when they were upgrading a motor with Feuling's help. Specifically said by the Owner of Feuling (Luke Leatherman).
No longer recommended until Feuling finishes their redesigned cuff (coming out sometime?).
It was mentioned in a Thrashin Supply video when they were upgrading a motor with Feuling's help. Specifically said by the Owner of Feuling (Luke Leatherman).
Tourer
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At first it was a 'thing' with the lifters that eliminated the roller bearings for bushings.
My guess is that Fueling selling oversized lifters that there was an interference problem there.
I sell +.002 lifters & I know they only work with the stock cuffs.
My guess is that Fueling selling oversized lifters that there was an interference problem there.
I sell +.002 lifters & I know they only work with the stock cuffs.
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Seasoned HDF Member
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From: Ottawa, Ontario
Thanks, guys...
I'm going to assume they don't recommend using the metal cups with oversize lifters specifically, which would make sense.
As far as using them with standard size lifters, I asked them, finally got an answer "the cuffs SHOULD work BUT fitment is not verified" Lol. Should, could, might
I just remember reading something about somebody saying there was an issue and I wondered what the specifics were. People have been using S&S cuffs without any issues with all kinds of different lifters. They do recommend using shims to center the cuff before tightening down, to avoid any contact with the sides. That could be a wear issue if you didn't do it.
I'm going to assume they don't recommend using the metal cups with oversize lifters specifically, which would make sense.
As far as using them with standard size lifters, I asked them, finally got an answer "the cuffs SHOULD work BUT fitment is not verified" Lol. Should, could, might
I just remember reading something about somebody saying there was an issue and I wondered what the specifics were. People have been using S&S cuffs without any issues with all kinds of different lifters. They do recommend using shims to center the cuff before tightening down, to avoid any contact with the sides. That could be a wear issue if you didn't do it.
Last edited by roussfam; Nov 26, 2025 at 08:35 AM.
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Seasoned HDF Member
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From: Ottawa, Ontario
Originally Posted by Jake707
Isn't that the reason when installing metal lifter cuffs you're supposed to put the feeler gauge between the lifter and cuff before final torque to ensure you maintain clearance?
"They do recommend using shims to center the cuff before tightening down, to avoid any contact with the sides. That could be a wear issue if you didn't do it."...
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OK, just because this is the first M8 that I've kept, (got rid of two 17 RKS for tranny fluid transfer), I'm just now getting into this M8 motor, per se. I looked up some lifter cuffs to see what we're talking about here, and have a question. If the cuff doesn't touch the lifters themselves to like help guide them or something, what is their exact purpose? To keep the lifters from flying out of their assigned lifter bore? Just curious...........
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OK, just because this is the first M8 that I've kept, (got rid of two 17 RKS for tranny fluid transfer), I'm just now getting into this M8 motor, per se. I looked up some lifter cuffs to see what we're talking about here, and have a question. If the cuff doesn't touch the lifters themselves to like help guide them or something, what is their exact purpose? To keep the lifters from flying out of their assigned lifter bore? Just curious...........
OK, just because this is the first M8 that I've kept, (got rid of two 17 RKS for tranny fluid transfer), I'm just now getting into this M8 motor, per se. I looked up some lifter cuffs to see what we're talking about here, and have a question. If the cuff doesn't touch the lifters themselves to like help guide them or something, what is their exact purpose? To keep the lifters from flying out of their assigned lifter bore? Just curious...........
Last edited by $tonecold; Nov 26, 2025 at 12:51 PM.
