SKU: 53535896871

COMP Cams Pro-Magnum Lifter Oldsmobile/

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Description

COMP Cams Pro-Magnum Lifter Oldsmobile/This Pro Magnum lifter is designed to perform at higher RPM without any harmful pumping up. This lifter for Oldsmobile 260 455 and Pontiac 326 455 yields significant power increase over standard hydraulic lifters. Catalog User 1 This Part Fits: Year Make Model Submodel 1975 Buick Apollo Base 1975 Buick Apollo SR 1972 Buick Centurion Base 1977,1980 1981 Buick Century Base 1977,1979 Buick Century Custom 1980 1981 Buick Century Estate 1979 1981 Buick

This Pro Magnum lifter is designed to perform at higher RPM without any harmful pumping up. This lifter for Oldsmobile 260-455 and Pontiac 326-455 yields significant power increase over standard hydraulic lifters.

Catalog
User 1

This Part Fits:

Year Make Model Submodel
1975 Buick Apollo Base
1975 Buick Apollo SR
1972 Buick Centurion Base
1977,1980-1981 Buick Century Base
1977,1979 Buick Century Custom
1980-1981 Buick Century Estate
1979-1981 Buick Century Limited
1979 Buick Century Special
1979-1981 Buick Century Sport
1974,1976-1979 Buick Electra 225
1974 Buick Electra 225 Custom
1974 Buick Electra 225 Limited
1975 Buick Electra Custom
1980-1987 Buick Electra Estate Wagon
1975-1984 Buick Electra Limited
1978-1984 Buick Electra Park Avenue
1974-1983 Buick Estate Wagon Base
1972-1975,1977-1981 Buick LeSabre Base
1985 Buick LeSabre Collector's Edition
1972-1973,1975-1978,1982-1985 Buick LeSabre Custom
1977 Buick LeSabre Custom Sport
1985-1990 Buick LeSabre Estate Wagon
1979-1985 Buick LeSabre Limited
1982 Buick LeSabre Limited Edition F/E
1974 Buick LeSabre Luxus
1981 Buick LeSabre Sport
1977,1979-1981,1986-1987 Buick Regal Base
1979-1981,1986-1987 Buick Regal Limited
1977 Buick Regal SR
1974-1985 Buick Riviera Base
1975 Buick Riviera GS
1982 Buick Riviera Limited Edition
1983-1985 Buick Riviera Luxury
1978 Buick Riviera LXXV Anniversary Edition
1979-1980 Buick Riviera S
1976 Buick Riviera Sport
1976 Buick Riviera SR
1981 Buick Riviera T-Type
1983 Buick Riviera XX Anniversary Edition
1975-1977 Buick Skylark Base
1976-1977 Buick Skylark S
1975-1977 Buick Skylark SR
1987-1990 Cadillac Brougham Base
1987-1990 Cadillac Brougham d'Elegance
1986 Cadillac Fleetwood Brougham
1986 Cadillac Fleetwood Brougham d'Elegance
1987 Chevrolet Caprice Base
1986-1990 Chevrolet Caprice Classic
1986 Chevrolet Caprice Classic Brougham
1967-1971 Oldsmobile 442 Base
1967-1974 Oldsmobile 98 Base
1967 Oldsmobile 98 Holiday
1975-1981 Oldsmobile 98 Luxury
1973-1984 Oldsmobile 98 Regency
1982-1984 Oldsmobile 98 Regency Brougham
1971-1990 Oldsmobile Custom Cruiser Base
1975-1976 Oldsmobile Custom Cruiser Panel
1975,1977 Oldsmobile Cutlass 442
1967-1975,1980 Oldsmobile Cutlass Base
1980-1981 Oldsmobile Cutlass Brougham
1977 Oldsmobile Cutlass Colonnade
1976-1977 Oldsmobile Cutlass Colonnade S
1972 Oldsmobile Cutlass Cruiser
1967 Oldsmobile Cutlass Holiday
1980-1981 Oldsmobile Cutlass LS
1968,1971-1977 Oldsmobile Cutlass S
1967 Oldsmobile Cutlass Turnpike Cruiser
1976-1979 Oldsmobile Cutlass Vista Cruiser
1979 Oldsmobile Cutlass Vista Cruiser Brougham
1978-1984 Oldsmobile Cutlass Calais Base
1983-1984 Oldsmobile Cutlass Calais Hurst
1980-1983 Oldsmobile Cutlass Cruiser Base
1980-1981 Oldsmobile Cutlass Cruiser Brougham
1979,1985-1986 Oldsmobile Cutlass Salon 442
1975-1980,1985-1987 Oldsmobile Cutlass Salon Base
1978-1980 Oldsmobile Cutlass Salon Brougham
1979 Oldsmobile Cutlass Salon Hurst
1987 Oldsmobile Cutlass Supreme 442
1967-1987 Oldsmobile Cutlass Supreme Base
1977-1987 Oldsmobile Cutlass Supreme Brougham
1988 Oldsmobile Cutlass Supreme Classic
1988 Oldsmobile Cutlass Supreme Classic Brougham
1976-1977 Oldsmobile Cutlass Supreme Colonnade
1974-1975 Oldsmobile Cutlass Supreme Cruiser
1975 Oldsmobile Cutlass Supreme Hurst
1981,1985 Oldsmobile Cutlass Supreme LS
1976 Oldsmobile Cutlass Tiara Base
1967-1968 Oldsmobile Delmont 88 Base
1967 Oldsmobile Delmont 88 Holiday
1967-1983 Oldsmobile Delta 88 Base
1967-1971 Oldsmobile Delta 88 Custom
1967,1980-1981 Oldsmobile Delta 88 Holiday
1969-1985 Oldsmobile Delta 88 Royale
1980-1985 Oldsmobile Delta 88 Royale Brougham
1984-1985 Oldsmobile Delta 88 Royale Brougham LS
1967-1972 Oldsmobile F85 Base
1973-1977 Oldsmobile Omega Base
1976-1977 Oldsmobile Omega Brougham
1977 Oldsmobile Omega Deluxe
1976-1977 Oldsmobile Omega F85
1975 Oldsmobile Omega Salon
1976-1977 Oldsmobile Omega SX
1967-1974 Oldsmobile Toronado Base
1971-1985 Oldsmobile Toronado Brougham
1985 Oldsmobile Toronado Caliente
1968-1970,1975-1976 Oldsmobile Toronado Custom
1967 Oldsmobile Toronado Deluxe
1977 Oldsmobile Toronado XS
1980-1981 Oldsmobile Toronado XSC
1977-1979 Oldsmobile Toronado XSR
1967-1975 Oldsmobile Vista Cruiser Base
1967 Oldsmobile Vista Cruiser Custom
1957-1981 Pontiac Bonneville Base
1976-1981 Pontiac Bonneville Brougham
1959-1962 Pontiac Bonneville Custom
1959-1970,1978-1981 Pontiac Bonneville Safari
1964-1967 Pontiac Catalina 2+2
1955-1981 Pontiac Catalina Base
1971-1972 Pontiac Catalina Brougham
1959-1981 Pontiac Catalina Safari
1962-1970 Pontiac Catalina Ventura
1955-1958 Pontiac Chieftain Base
1957 Pontiac Chieftain Custom Safari
1957 Pontiac Chieftain Custom Safari Transcontinental
1955,1958 Pontiac Chieftain Safari
1967-1970 Pontiac Executive Base
1967-1970 Pontiac Executive Safari
1968-1969 Pontiac Firebird 350
1969 Pontiac Firebird 350 HO
1967-1969 Pontiac Firebird 400
1967-1977,1979-1981 Pontiac Firebird Base
1970-1977,1979-1981 Pontiac Firebird Esprit
1970-1981 Pontiac Firebird Formula
1967 Pontiac Firebird HO
1969-1981 Pontiac Firebird Trans Am
1973-1975,1978-1980 Pontiac Grand Am Base
1975-1977,1979-1981 Pontiac Grand LeMans Base
1975,1977,1979-1981 Pontiac Grand LeMans Safari
1962-1974,1976-1981 Pontiac Grand Prix Base
1981 Pontiac Grand Prix Brougham
1975,1977-1981 Pontiac Grand Prix LJ
1975-1980 Pontiac Grand Prix SJ
1971-1978 Pontiac Grand Safari Base
1971-1974 Pontiac Grandville Base
1975 Pontiac Grandville Brougham
1964-1973 Pontiac GTO Base
1970-1971 Pontiac GTO The Judge
1963-1977,1979-1981 Pontiac LeMans Base
1972-1974 Pontiac LeMans Luxury
1969-1970,1973-1975,1977,1979-1981 Pontiac LeMans Safari
1974 Pontiac LeMans Safari Luxury
1970-1977 Pontiac LeMans Sport
1971 Pontiac LeMans T37
1986 Pontiac Parisienne Base
1986 Pontiac Parisienne Brougham
1977 Pontiac Phoenix Base
1987-1989 Pontiac Safari Base
1955-1966 Pontiac Star Chief Base
1955-1957 Pontiac Star Chief Custom
1958 Pontiac Star Chief Custom Safari
1966 Pontiac Star Chief Executive
1958 Pontiac Star Chief Super Deluxe
1957-1958 Pontiac Super Chief Base
1961-1970 Pontiac Tempest Base
1964-1965,1968-1969 Pontiac Tempest Custom
1961-1962 Pontiac Tempest LeMans
1961,1963-1969 Pontiac Tempest Safari
1960-1961,1972-1977 Pontiac Ventura Base
1973-1975 Pontiac Ventura Custom
1974 Pontiac Ventura GTO
1975 Pontiac Ventura S
1975-1977 Pontiac Ventura SJ
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SKU: 53535896871

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4.0 ★★★★★
Based on 24 reviews
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Product Reviews
C
Verified Purchase
caleb me
New York, US
★★★★★ 5
Worth the hefty price tag
After considering OLED for a while and waiting for the price to drop, I finally decided to try this when on sale. I had very high expectations and was fully prepared to refund at the first sign of trouble. Lets start with the cons in my experience. 1. After setting up the monitor and looking through the settings, trying to turn the RGB LEDs on worked... for the most part. The lights on the back worked fine, on the front there are two zones that are supposed to light up also, but only one of them worked. After doing some searching apparently a simple firmware update or downgrade can fix this, so it is not a hardware issue but a software one. I do not need LEDs on a monitor anyway, especially an OLED that has those nice true blacks, so I don't want anything on to distract my eye. I turned the LEDs off completely and never card to change firmware just to be able to turn them on again. 2. The first day I setup the monitor, tested it a bit, then went to bed. The following day I turned on the monitor and after a few hours of using it I closed all my programs and went to desktop (which is a true black single color background). To my surprise the LEDs were still on, the screen looked no different from my other non OLED screens. After digging through various settings and power cycling the monitor a few times I decided to contact support. I explained my issue and got transfer once or twice through Samsung support chat before finally getting through to help. The first thing that I was asked to do was unplug the power cord that runs from the adapter box to the monitor, not from the wall to the adapter box, and not power cycling using the button on the monitor. After waiting about a minute and plugging it back in the black were true black again and I felt like an idiot. The important takeaway here is that the box will run some power to the screen even if the screen is of, so if you need to power cycle make sure you unplug the screen. After doing the reset once my pixels have remained true black where they should and have not been an issue since. Before we get to the pros is want to mention settings. There are quite a few settings of which most are helpful, just about anything you would want to change you can. The only problem is that with so many settings it can be hard to find what you're looking for sometimes. So far this is one of my only monitors to not change settings ever after setup, I have had ASUS and ACER monitors before that both will occasionally change a setting if a certain game launches or if the hdmi/vda/dp gets unplugged. Finally we have the pros. 1. OLED monitor at a PC desktop form factor. This thing looks great, it is great to watch movies and videos on, and colorful and cinematic games look amazing, I have never seen a non OLED come anywhere close it is not even the same ballgame. I have had TN VA and IPS displays before and IMO all three of those look far more similar to each other than to this. 2. Responsiveness and Refresh rate. 240hz is incredibly solid for modern gaming, not as bug of jump from 60 to 144 or even 120, but still noticeable. Due to the OLED tech the overall screen response time is insane, it isn't as simple as the 1ms, 0.5ms or 0.1ms that you see advertised on these monitor pages, if you look into it in depth, this monitor has a response time that is about 2x faster then the next best non OLED gaming monitor, and that monitor is even 360hz! What does this meant though? Blur essentially does not exist on this monitor, comparing to 144hz, 165, and 60hz, when setting this monitors refresh rate to match, it is significantly clearer and less blurry. At 240hz even taking a still image with a high fps camera it is hard to detect or extremely minimal, where my VA 165hz displays at least 5 clearly visible ghosted images at once just with my phone camera. To summarize, this monitor I expected to be good but not worth the price tag, but after quite some use it has completely blown me away and I am definitely keeping it. The only monitor jump that has been as noticeable as jumping from non OLED to OLED is the jump from 60-144hz.
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Reviewed in the United States on October 5, 2023
Y
Verified Purchase
YouNeedMorePeople
West Palm Beach, US
★★★★★ 3
Too compromised for the price
HDR: Windows 10/11 report 1015nits peak brightness which is its real peak luminance. Quantum HDR2000 is a fabricated specification unique to Samsung. In real content (games/movies) it is no where near capable of 2000nits and instead barely produces over 800nits peak brightness for 10% highlight. The 2000nit figure comes from best case scenario - 10% test slide used by calibrators and reviewers to measure luminance. The monitor detects such a scenario and temporarily boosts brightness so that they can publish impressive brightness figures. Yes this is essentially cheating and Samsung has been called out recently for the same "trick" on their TV's. Samsung could have opted to have the monitors HDR performance certified by VESA but chose not to in favor of their own marketing favorable terminology. In reality the monitor is some where between VESA DisplayHDR600 and DisplayHDR1000 due to a combination of Samsung severely limiting brightness for the sake of preventing blooming alongside possibly preventing the backlight from being overdriven to manage thermals. Scanlines: The monitor displays horizontal scanlines at its maximum 4K 240hz refresh rate. This is a limitation of the display driver or scaler and has been present on all 1440p+ 240hz Samsung monitors dating back to the original G7. This is not a software/firmware issue as the original G7 and Neo G9 still suffer from it to this day after over a dozen firmware updates between the two. Dropping down to 120hz rids you of scanlines but then you have to ask, why did I buy a 240hz display? A compromise is using a custom resolution/refresh rate of 165hz but then you have to ask yourself, why didn't I save $200 and purchase the Neo G7 instead? Anything above 165hz and the scanlines get very noticeable. Anti Reflective Coating: The Neo G8 uses a completely different AR coating compared to the Neo G7. Its extremely thick/hazy and has a sparkly sheen to it and as a result is a huge detriment to clarity. HDMI 2.1: As of right now the monitors HDMI 2.1 ports are either broken due to a firmware mishap or not full bandwidth HDMI 2.1 ports. 4K 120hz is the max possible refresh rate using an HDMI 2.1 capable GPU and even that can be finicky at times. DSC should make 4K 240hz possible just like the Displayport 1.4 port but its just not working correctly at the moment. Curve: The curve is non uniform and extremely aggressive at the center while flattening at the sides. It results in a very odd almost crease like presentation dead center and takes quite a bit of adjustment. I understand the 1000R curve is done to compensate for the VA panels poor viewing angles but its just too much for desktop/productivity and warps everything you're looking at. 1800R or 1500R max would be ideal although I wish Samsung would ditch this obsession with curves and just give us flat panels. Neo G7 vs Neo G8: So why buy the Neo G8? Well there really is no reason unless you enjoy horizontal scanlines at 240hz. The Neo G7 has the same HDR brightness (1015nits reported to Windows), gets you 165hz scanline free without having to fiddle with custom resolutions, uses a more traditional matte anti glare coating and as of writing this review appears to have the same HDMI 2.1 limitation.
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Reviewed in the United States on June 30, 2022
S
Verified Purchase
Steve B.
Lexington, US
★★★★★ 5
WHAT YOU NEED TO KNOW! And why people have issues with this Monitor, It's their fault.
Got mine today! Great packaging, no dead pixels! LOOKS AWESOME! This is what you need to know before buying this Monitor! Please read SO YOU KNOW! It will also help you with any other monitor, video card, or cables. This is a 4K 240Hz Monitor! There are 3 different versions of this Monitor in the user manual, and Samsung has never been great on literature to know what you need to push this monitor to its full potential. I read the 4-star reviews for this Monitor first. In there, I read about a guy who was getting tearing and replaced the DP (Display Port) cable to a 16K cable. I want to explain this to educate people and help. The base refresh rate for any resolution is 60Hz, so let's do the math backwards to fully understand. 16K at 60Hz = 8K at 120Hz = 4K at 240Hz = 2K at 480Hz Since not only Samsung, but every corporation tries to save money, the other 2 monitors in the user's guide doesn't require a 16K cable. Since I'm sure they all have the same packaging, there's no reason to believe the supplied DP (Display Port) cable is 16K. In Fact, I can see nothing on the cable that says so. However, I spent $6 for a 10' 16k cable delivered with the Monitor. This is the most important thing to know once you have your 16K DP (Display Port) cable. To push 16K your device (Video Card) has to have DP (Display Port) 2.1 AMD was on top of the ball on this and uses DP (Display Port) 2.1 for its RX 7000 series and up. I use a RX 7900XTX, so I'm covered. Nvidia used DP (Display Port) 1.4 on their RTX 4000 series cards to save money and charge you way too much! Nvidia implemented DP 2.1 on their RTX 5000 series cards. I don't know for INTEL cards; I would search the specs. I've read reviews from RTX 4000 people, and I can only assume that they don't understand that Nvidia DLSS has to be a factor, they aren't aware that their video cards can't push a true 4K at 240Hz. The last thing to add is the Dimensions that Samsung Provides! Yes, its 27" tall! But it's a telescopic stand, I only have 20.5" clearance, and it fits nice. I think it could go down to 19". Power Color Hellhound RX 7900 XTX AMD 9950 X3D Asus Rog Strix X870E-E Gaming Wi-Fi 32GB G.Skill Royal Neo at 8000Mhz Nothing else is important for this post
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 15, 2025
A
Verified Purchase
Amazon Customer
Cuba, US
★★★★★ 5
Music and video editing. This thing works.
Size: 49-1, Size: 49-1
49" curved. It's a good monitor. Confirmed resolution is 5K. I had never heard of ZZA before but the reviews were good and the price was decent. Honestly, I did not expect too much. Well, this monitor is well packaged, easy to handle and use, built nicely. The screen has a matte low-reflection surface and looks smooth. Tested with Ableton, DaVinci, WOW, Zoom, and a few others. Instantly improved my workflow by displaying longer timelines in music and video. Games like WOW are very immersive, but it takes a few hours to get used to. Once you get into it, it might be had to go back to a normal flatscreen. Overall, it's worth the money. ZZA is evidently taking this very seriously with a decent design and a solid feel. Would recommend.
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Reviewed in the United States on February 2, 2026
T
Verified Purchase
Trisha Hagensick
Carnegie, US
★★★★★ 5
Great monitor
Was looking for an extra monitor to use for when working from home. The picture quality is perfect for just normal work use. The ports are easy to access for plugging in cords. Was easy to set up with the docking station as well. Worth the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026

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