SKU: 27389800803

Comp Cams CS 291T HR-107 MT THUMPR CAM & LFTR KIT

$382.67 $425.19
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Description

Comp Cams CS 291T HR-107 MT THUMPR CAM & LFTR KITMutha Thumpr 291THR7; Cam, Lifters Lifter Type: OE Style Hydraulic Roller Description: High performance street strip Needs 9: 1 compression, 2500+ stall, intake, gears & headers Rough idle Cam Family: Thumpr Specifications RPM Range: 2200 to 5900 Valve Timing: 0. 006 Lobe Separation: 107 Intake Centerline: 102 Vehicle Fitments: Year Make Model Submodel 1987 1991 Avanti II Base 1991 1996 Buick Commercial Chassis Base 1992 1993 Buick Roadmaster Base,

Mutha Thumpr 291THR7; Cam, Lifters

Lifter Type:  OE-Style Hydraulic Roller

Description:  High performance street/strip Needs 9:1 compression, 2500+ stall, intake, gears & headers Rough idle

Cam Family:  Thumpr

Specifications

RPM Range: 2200 to 5900

Valve Timing: 0.006

Lobe Separation:  107°  

Intake Centerline: 102° 



Vehicle Fitments:

Year Make Model Submodel
1987 - 1991 Avanti II Base
1991 - 1996 Buick Commercial Chassis Base
1992 - 1993 Buick Roadmaster Base, Limited
1991 - 1993 Buick Roadmaster Estate Wagon
1990 - 1992 Cadillac Brougham Base, d'Elegance
1992 - 1996 Cadillac Commercial Chassis Brougham, Base
1993 Cadillac Fleetwood Brougham, Base
1994 Chevrolet Blazer Base, Silverado Sport
1992 - 1993 Chevrolet Blazer Cheyenne
1987 Chevrolet Blazer Custom Deluxe
1991 - 1994 Chevrolet Blazer Nevada
1988 - 1991 Chevrolet Blazer Scottsdale
1987 - 1994 Chevrolet Blazer Silverado
1990 - 1993 Chevrolet C1500 454 SS
1989 - 1995 Chevrolet C1500 Base
1988 - 1992 Chevrolet C1500 Scottsdale
1988 - 1995 Chevrolet C1500 Silverado, Cheyenne
1990 - 1995 Chevrolet C1500 WT
1992 - 1995 Chevrolet C1500 Suburban Base
1995 Chevrolet C1500 Suburban LT, LS
1992 - 1994 Chevrolet C1500 Suburban Silverado
1988 - 1995 Chevrolet C2500 Base, Silverado, Cheyenne
1993 Chevrolet C2500 Custom, 400 SS
1988 - 1992 Chevrolet C2500 Scottsdale
1994 - 1995 Chevrolet C2500 WT
1992 - 1995 Chevrolet C2500 Suburban Base
1995 Chevrolet C2500 Suburban LT, LS
1992 - 1994 Chevrolet C2500 Suburban Silverado
1994 - 1995 Chevrolet C3500 Base
1988 - 1995 Chevrolet C3500 Cheyenne, Silverado
1988 - 1992 Chevrolet C3500 Scottsdale
1988 Chevrolet Camaro Base
1987 - 1990 Chevrolet Camaro Iroc-Z
1989 - 1992 Chevrolet Camaro RS
1987 Chevrolet Camaro Sport, LT
1987 - 1992 Chevrolet Camaro Z28
1992 Chevrolet Camaro Z28 Heritage Edition, RS Heritage Edition
1987 - 1992 Chevrolet Caprice Base
1987 - 1993 Chevrolet Caprice Classic
1987 - 1990 Chevrolet Caprice Classic Brougham, Classic LS Brougham
1993 Chevrolet Caprice Classic LS
1991 - 1993 Chevrolet Caprice Classic LTZ
1991 - 1994 Chevrolet Commercial Chassis Base
1988 Chevrolet Corvette 35th Anniversary Edition
1987 - 1991 Chevrolet Corvette Base
1990 - 1991 Chevrolet Corvette ZR-1
1987 Chevrolet El Camino SS, Base
1996 Chevrolet Express 2500 LS, Base
1987 Chevrolet G10 Bonaventure
1987 - 1995 Chevrolet G10 Chevy Van, Beauville, Sportvan
1995 Chevrolet G20 Base
1987 - 1995 Chevrolet G20 Sportvan, Chevy Van, Beauville
1987 - 1996 Chevrolet G30 Sportvan, Hi-Cube, Chevy Van, Beauville
1994 - 1995 Chevrolet K1500 Base
1988 - 1995 Chevrolet K1500 Cheyenne, Silverado
1988 - 1992 Chevrolet K1500 Scottsdale
1991 Chevrolet K1500 Sport
1990 - 1995 Chevrolet K1500 WT
1992 - 1995 Chevrolet K1500 Suburban Base
1995 Chevrolet K1500 Suburban LS, LT
1992 - 1994 Chevrolet K1500 Suburban Silverado
1994 - 1995 Chevrolet K2500 Base, WT
1988 - 1995 Chevrolet K2500 Cheyenne, Silverado
1988 - 1992 Chevrolet K2500 Scottsdale
1992 - 1995 Chevrolet K2500 Suburban Base
1995 Chevrolet K2500 Suburban LS, LT
1992 - 1994 Chevrolet K2500 Suburban Silverado
1994 - 1995 Chevrolet K3500 Base
1988 - 1995 Chevrolet K3500 Cheyenne, Silverado
1988 - 1992 Chevrolet K3500 Scottsdale
1987 - 1988 Chevrolet Monte Carlo LS, SS, Base
1987 - 1989 Chevrolet P20 Base, Step-Van
1987 - 1998 Chevrolet P30 Base
1987 - 1990 Chevrolet P30 Step-Van
1987 Chevrolet R10 Scottsdale, Custom Deluxe, Silverado
1987 Chevrolet R10 Suburban Custom Deluxe
1987 - 1988 Chevrolet R10 Suburban Scottsdale, Silverado
1989 - 1991 Chevrolet R1500 Suburban Scottsdale, Silverado
1988 Chevrolet R20 Cheyenne
1987 - 1988 Chevrolet R20 Scottsdale, Silverado, Custom Deluxe
1987 Chevrolet R20 Suburban Custom Deluxe
1987 - 1988 Chevrolet R20 Suburban Scottsdale, Silverado
1989 Chevrolet R2500 Cheyenne, Scottsdale, Silverado
1989 - 1991 Chevrolet R2500 Suburban Scottsdale, Silverado
1988 Chevrolet R30 Cheyenne
1987 - 1988 Chevrolet R30 Scottsdale, Silverado, Custom Deluxe
1989 - 1990 Chevrolet R3500 Scottsdale
1989 - 1991 Chevrolet R3500 Silverado, Cheyenne
1995 Chevrolet Tahoe LT, Base, LS
1987 Chevrolet V10 Scottsdale, Custom Deluxe, Silverado
1987 Chevrolet V10 Suburban Custom Deluxe
1987 - 1988 Chevrolet V10 Suburban Scottsdale, Silverado
1989 - 1991 Chevrolet V1500 Suburban Silverado, Scottsdale
1987 Chevrolet V20 Silverado, Custom Deluxe, Scottsdale
1987 Chevrolet V20 Suburban Custom Deluxe
1987 - 1988 Chevrolet V20 Suburban Silverado, Scottsdale
1989 - 1991 Chevrolet V2500 Suburban Scottsdale, Silverado
1988 Chevrolet V30 Cheyenne
1987 - 1988 Chevrolet V30 Scottsdale, Silverado, Custom Deluxe
1989 - 1990 Chevrolet V3500 Scottsdale
1989 - 1991 Chevrolet V3500 Silverado, Cheyenne
1993 Excalibur Limited Base
1987 - 1989 Excalibur Phaeton Base
1994 - 1995 GMC C1500 Sierra SL, Sierra SLT, Sierra Special
1988 - 1995 GMC C1500 Sierra SLE
1988 - 1993 GMC C1500 Sierra, Sierra SLX
1992 - 1995 GMC C1500 Suburban Base, SLE
1995 GMC C1500 Suburban SLT
1988 - 1995 GMC C2500 Sierra SLE
1994 - 1995 GMC C2500 Sierra SLT, Sierra SL
1988 - 1993 GMC C2500 Sierra, Sierra SLX
1992 - 1995 GMC C2500 Suburban SLE, Base
1995 GMC C2500 Suburban SLT
1988 - 1995 GMC C3500 Sierra SLE
1994 - 1995 GMC C3500 Sierra SLT, Sierra SL
1988 - 1993 GMC C3500 Sierra SLX, Sierra
1987 GMC Caballero Base, Diablo
1987 - 1995 GMC G1500 Vandura, Rally, Rally STX
1987 - 1995 GMC G2500 Rally, Vandura, Rally STX
1987 - 1996 GMC G3500 Rally Camper Special, Magnavan, Vandura Special, Vandura, Rally STX, Rally
1987 - 1988 GMC G3500 Rally Custom
1987 - 1991 GMC Jimmy Base
1987 - 1990 GMC Jimmy Sierra Classic
1988 - 1995 GMC K1500 Sierra SLE
1995 GMC K1500 Sierra SLS
1994 - 1995 GMC K1500 Sierra SLT, Sierra Special, Sierra SL
1993 GMC K1500 Sierra Sport
1988 - 1993 GMC K1500 Sierra, Sierra SLX
1992 - 1995 GMC K1500 Suburban Base, SLE
1995 GMC K1500 Suburban SLT
1988 - 1995 GMC K2500 Sierra SLE
1994 - 1995 GMC K2500 Sierra SLT, Sierra SL
1988 - 1993 GMC K2500 Sierra SLX, Sierra
1992 - 1995 GMC K2500 Suburban SLE, Base
1995 GMC K2500 Suburban SLT
1988 - 1995 GMC K3500 Sierra SLE
1994 - 1995 GMC K3500 Sierra SLT, Sierra SL
1988 - 1993 GMC K3500 Sierra SLX, Sierra
1987 - 1989 GMC P2500 Base, Value Van
1987 - 1996 GMC P3500 Base
1987 - 1990 GMC P3500 Value Van
1987 GMC R1500 High Sierra, Base, Sierra Classic
1987 - 1991 GMC R1500 Suburban Base
1987 GMC R1500 Suburban High Sierra
1987 - 1989 GMC R1500 Suburban Sierra Classic
1990 GMC R1500 Suburban SLE
1987 - 1989 GMC R2500 High Sierra, Sierra Classic, Base
1987 - 1991 GMC R2500 Suburban Base
1987 GMC R2500 Suburban High Sierra
1987 - 1989 GMC R2500 Suburban Sierra Classic
1990 GMC R2500 Suburban SLE
1987 - 1991 GMC R3500 Base
1987 - 1989 GMC R3500 Sierra Classic, High Sierra
1990 - 1991 GMC R3500 SLE
1987 GMC V1500 High Sierra, Sierra Classic, Base
1987 - 1991 GMC V1500 Suburban Base
1987 GMC V1500 Suburban High Sierra
1987 - 1989 GMC V1500 Suburban Sierra Classic
1990 GMC V1500 Suburban SLE
1987 GMC V2500 Base, High Sierra, Sierra Classic
1987 - 1991 GMC V2500 Suburban Base
1987 GMC V2500 Suburban High Sierra
1987 - 1989 GMC V2500 Suburban Sierra Classic
1990 GMC V2500 Suburban SLE
1987 - 1991 GMC V3500 Base
1987 - 1989 GMC V3500 Sierra Classic, High Sierra
1990 - 1991 GMC V3500 SLE
1993 GMC Yukon GT
1992 - 1995 GMC Yukon SLE, Base
1995 GMC Yukon SLT
1992 - 1994 GMC Yukon Sport
1991 - 1992 Oldsmobile Custom Cruiser Base
1987 - 1992 Pontiac Firebird Base, Trans Am
1989 Pontiac Firebird Trans Am GTA SE
1989 - 1992 Pontiac Firebird Trans Am GTA, Formula
1987 Pontiac Grand Prix Base, LE, Brougham
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27389800803

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4.8 ★★★★★
Based on 16 reviews
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Product Reviews
S
Verified Purchase
Scotticus Finch
San Leandro, US
★★★★★ 5
Great monitor!
Size: 34"/WQHD/1000R/HDR400
Excellent product and value! Great quality, makes gaming awesome.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
G
Verified Purchase
Greycie
Whiting, US
★★★★★ 4
Overall AMAZING moniter for the price
Size: 24"/FHD/240Hz
It dose everything it said it did without any downsides thus far. I will say having it grouped with all the other monitors in the listing kinda skews the reviews for all the monitors and the HDR 400 certification not being a real HDR value is a bit scummy for marketing however over all its a amazing monitor. virtually 0 input lantancy as far as i can tell and its more than bright enough for me. Its color calibration is a bit off by default but can be easily fixed by switching to the cool setting. I was expecting it to come with a display port cable but it only came with a HDMI cable. I would have liked to see a display port cable but i understand why its a HDMI cable. It was very easy to setup and easy to use as its just the stand, the monitor, and the HDMI and power cords. The monitor stand is nice but its obviously where Koorui cheaped out however for a monitor of this price you cant beat it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
Y
Verified Purchase
Yanepsy
Houston, US
★★★★★ 5
Excellent Budget Gaming Monitor
Size: 24.5" 200Hz/FHD
I’m very impressed with this monitor for the price. The 200Hz refresh rate makes gameplay feel incredibly smooth, especially in fast-paced games. The picture quality is sharp, colors look good, and the screen size is perfect for both gaming and everyday use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
F
Verified Purchase
Frost
Los Angeles, US
★★★★★ 5
Best price best product
Worth it still got it after year 4 of it and haven't had a issue . Hits the high resolution it says it has but I doubt it's over 166hz ... even tho it claims unlimited lol ... decent for first time setup . I hit about 145 hours to 155hz max .... crisp big monitor make sure you use proper cables
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
T
Verified Purchase
TekkenG
Birmingham, US
★★★★★ 1
Better off saving your money for a quality brand like Acer or Samsung
Size: 24"/FHD/240Hz
If you were looking for a decent gaming monitor with a good refresh rate, you better keep looking. Honestly, I wanted to really like this thing. For $120, it ticked off a lot of great features for me: at least 120Hz refresh rate, 1080p quality, and some nifty reticule marks for FPS gamers like myself. And for a year I had no problems with it until a few days ago. The ability to control input's, power, and toggle the reticule features all lie on one singular button behind the monitor. Here lie's the issue; if that power button starts messing up, there is no way to control or turn on/off the monitor. This is exactly what happened on my unit; the power button/control went out and the monitor was basically useless. I contacted Koorui support via email, and all I got was a vague "Did you confirm the button is really broken" response. Replied back that I did, and the manufacturer has ghosted me. Basically, I HIGHLY advise you just save up a few $80 or $100 dollars and get a decent entry level gaming monitor. By going cheap with this one, you will just end up probably wearing out the power/control button and be left with an expensive paperweight. If you are DIY repair savvy, I am sure that replacing the power/control button probably is not that big of a deal. In which case, go right ahead as it is a decent monitor for the price. But with that said, having this thing break leaves you with basically no options to get it fixed and good luck trying to get a hold of Koorui for support. Sadly, this is a growing trend on buying electronic's here on amazon from smaller brand sellers. *Update* So as of writing this review, I got Koorui to reach out to me. They would agree to replace the monitor for free, but I would have to front the shipping costs. They have their operations out in California, so if you live on the east coast then expect to pay around $40-50 for shipping for the monitor all the way out there (nearly half the monitor's value). I told Koorui that this just did not make any financial sense and they offered to refund me 50% of the monitor's value. However, they have yet to specify how they will send the refund, so I am unsure of whether I will see my partial refund when this is all said and done. So know that if you do proceed to get this monitor and need to return it past the 30 day return window covered by Amazon. TLDR: just save up an extra $50-100 for a big brand gaming monitor and save yourself the headache of dealing with all of this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2024

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