SKU: 23999699617

Comp Cams Camshaft Cs 291t Hr-107 Mt Thumpr

$456.28 $506.98
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Description

Comp Cams Camshaft Cs 291t Hr-107 Mt ThumprMutha Thumpr 291THR7; 2200 to 5900 RPM Range Lifter Type: OE Style Hydraulic Roller Engine Family: Chevrolet 305 350 c. i. V8 1987 2002 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

Mutha Thumpr 291THR7; 2200 to 5900 RPM Range

Lifter Type: OE-Style Hydraulic Roller

Engine Family: Chevrolet 305/350 c.i. V8 1987-2002

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
1991 - 1993 Buick Roadmaster Estate Wagon
1992 - 1993 Buick Roadmaster Limited, Base
1990 - 1992 Cadillac Brougham Base, d'Elegance
1992 - 1996 Cadillac Commercial Chassis Brougham, Base
1993 Cadillac Fleetwood Brougham, Base
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
1994 Chevrolet Blazer Silverado Sport, Base
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
1993 Chevrolet C2500 Custom, 400 SS
1988 - 1992 Chevrolet C2500 Scottsdale
1988 - 1995 Chevrolet C2500 Silverado, Cheyenne, Base
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
1987 Chevrolet Camaro LT, Sport
1989 - 1992 Chevrolet Camaro RS
1987 - 1992 Chevrolet Camaro Z28
1992 Chevrolet Camaro Z28 Heritage Edition, RS Heritage Edition
1987 - 1992 Chevrolet Caprice Base
1987 - 1993 Chevrolet Caprice Classic
1993 Chevrolet Caprice Classic LS
1987 - 1990 Chevrolet Caprice Classic LS Brougham, Classic Brougham
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
1998 Chevrolet Express 1500 Base, LS
1996 Chevrolet Express 2500 Base, LS
1998 Chevrolet Express 3500 LS, Base
1987 Chevrolet G10 Bonaventure
1987 - 1995 Chevrolet G10 Chevy Van, Beauville, Sportvan
1995 Chevrolet G20 Base
1987 - 1995 Chevrolet G20 Chevy Van, Sportvan, Beauville
1987 - 1996 Chevrolet G30 Chevy Van, Hi-Cube, Beauville, Sportvan
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 LT, LS
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 Base, SS, LS
1987 - 1989 Chevrolet P20 Base, Step-Van
1987 - 1998 Chevrolet P30 Base
1987 - 1990 Chevrolet P30 Step-Van
1987 Chevrolet R10 Silverado, Custom Deluxe, Scottsdale
1987 Chevrolet R10 Suburban Custom Deluxe
1987 - 1988 Chevrolet R10 Suburban Scottsdale, Silverado
1989 - 1991 Chevrolet R1500 Suburban Silverado, Scottsdale
1988 Chevrolet R20 Cheyenne
1987 - 1988 Chevrolet R20 Custom Deluxe, Scottsdale, Silverado
1987 Chevrolet R20 Suburban Custom Deluxe
1987 - 1988 Chevrolet R20 Suburban Scottsdale, Silverado
1989 - 1991 Chevrolet R2500 Suburban Scottsdale, Silverado
1988 Chevrolet R30 Cheyenne
1987 - 1988 Chevrolet R30 Silverado, Scottsdale, Custom Deluxe
1989 - 1990 Chevrolet R3500 Scottsdale
1989 - 1991 Chevrolet R3500 Silverado, Cheyenne
1995 Chevrolet Tahoe Base, LS, LT
1987 Chevrolet V10 Custom Deluxe, Scottsdale, Silverado
1987 Chevrolet V10 Suburban Custom Deluxe
1987 - 1988 Chevrolet V10 Suburban Silverado, Scottsdale
1989 - 1991 Chevrolet V1500 Suburban Silverado, Scottsdale
1987 Chevrolet V20 Scottsdale, Silverado, Custom Deluxe
1987 Chevrolet V20 Suburban Custom Deluxe
1987 - 1988 Chevrolet V20 Suburban Scottsdale, Silverado
1989 - 1991 Chevrolet V2500 Suburban Silverado, Scottsdale
1988 Chevrolet V30 Cheyenne
1987 - 1988 Chevrolet V30 Custom Deluxe, Silverado, Scottsdale
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 Special, Sierra SLT
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
1994 - 1995 GMC C2500 Sierra SL, Sierra SLT
1988 - 1995 GMC C2500 Sierra SLE
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 Vandura, Rally, Rally STX
1987 - 1996 GMC G3500 Magnavan, Vandura, Vandura Special, Rally Camper Special, 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 Special, Sierra SLT, Sierra SL
1993 GMC K1500 Sierra Sport
1988 - 1993 GMC K1500 Sierra, Sierra SLX
1992 - 1995 GMC K1500 Suburban SLE, Base
1995 GMC K1500 Suburban SLT
1994 - 1995 GMC K2500 Sierra SL, Sierra SLT
1988 - 1995 GMC K2500 Sierra SLE
1988 - 1993 GMC K2500 Sierra SLX, Sierra
1992 - 1995 GMC K2500 Suburban Base, SLE
1995 GMC K2500 Suburban SLT
1994 - 1995 GMC K3500 Sierra SL, Sierra SLT
1988 - 1995 GMC K3500 Sierra SLE
1988 - 1993 GMC K3500 Sierra SLX, Sierra
1987 - 1989 GMC P2500 Value Van, Base
1987 - 1996 GMC P3500 Base
1987 - 1990 GMC P3500 Value Van
1987 GMC R1500 Base, Sierra Classic, High Sierra
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 Sierra Classic, High Sierra, 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 High Sierra, Sierra Classic
1990 - 1991 GMC R3500 SLE
1987 GMC V1500 Sierra Classic, High Sierra, 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 High Sierra, Sierra Classic, Base
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
1989 - 1992 Pontiac Firebird Formula, Trans Am GTA
1989 Pontiac Firebird Trans Am GTA SE
1987 - 1992 Pontiac Firebird Trans Am, Base
1987 Pontiac Grand Prix Brougham, LE, Base
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: 23999699617

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4.1 ★★★★★
Based on 23 reviews
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Product Reviews
P
Verified Purchase
Paula S
Fort Morgan, US
★★★★★ 3
Quality and Price
Color: Original Grey
For me a little tight on my ankles
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
S
Verified Purchase
Secret Angel
Cuba, US
★★★★★ 5
Transformative for Dry, Cracked Heels!
Color: Original Grey
I recently purchased Dr. Frederick's Original Moisturizing Heel Socks, and they have truly transformed the condition of my feet! I can’t recommend them highly enough. Effective Moisturization: These socks are infused with moisturizing agents that work wonders. After just a few uses, I noticed a significant reduction in dryness and cracking on my heels. My feet feel softer and smoother, and I love that I can wake up to beautifully moisturized skin. Comfortable Fit: The socks are incredibly comfortable to wear, with a snug yet gentle fit. I appreciate that they don’t feel restrictive, allowing me to walk around my home while wearing them without any discomfort. They are also lightweight, making them easy to slip on before bed. User-Friendly: They are super easy to use—just wear them overnight, and let the socks do their magic. I love the simplicity of incorporating them into my nighttime routine. Durable Quality: The quality of the socks is impressive. They wash well and have maintained their shape and effectiveness after multiple uses. I feel confident that they will last a long time. Final Thoughts: If you're struggling with dry, cracked heels, I highly recommend Dr. Frederick's Original Moisturizing Heel Socks. They are a fantastic investment in foot care and have made a noticeable difference in the health of my skin. These socks have become a must-have in my self-care routine!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 4, 2024
D
Verified Purchase
Donna
Fort Morgan, US
★★★★★ 5
These worked for me!
Color: Original Grey
They worked great. I bought these for cracked sore heels. It took 2-3 weeks but my heels no longer hurt and the cracks have closed and look more like an indention than a crack now. They feel so much better, but I'll probably wear them another week just to be sure they stay healed. They look and feel like regular socks from the outside but only cover the heel with the toe open. Not think but not thick, again like regular socks. They would probably be slippery on a smooth surface the same as socks. The inside feels like rubber or something smooth at the heel. I have washed them once each pair and accidentally dried one pair in the dryer. They still seem to feel the same so I think they're fine. They're pretty inexpensive and had different colors and sizes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
M
Verified Purchase
Mimi
Omaha, US
★★★★★ 4
Truly Helped My Cracked Heels
Color: Original Grey
I didn't include a photo cause they look exactly like their advertisement photo. I so liked the silicon-type heel lining as it kept the heel-repair cream on my heel and did not get soaked up by the sock. But, it is so, so slippery when walking around in them! Take care to be mindful when you set each foot down as the lotion can slide your heel across the sock quite a bit. If these socks were for an elderly person, I would have them only sit while using the sock - no walking around for fear of falling. I have larger ankles and found that having both the top and the bottom hems/elastic, etc. the same size to be quite troublesome and was not a nice feeling or fit on my upper hem that hit my ankle. Don't get me wrong, I am so glad that I got them and I continue to use them and they are helping my horribly-cracked heels greatly, but I find that I have to keep moving the top hem up and down so that it doesn't stay in one position as it cuts in to my ankle. My feedback and advice might be to please make the upper hem somewhat larger than the one that is on the bottom and goes over my actual foot. They really should not be the same circumference...or else make different sizes - S, M, L, etc. That's really my only complaint or "con" to ordering these. I think they are a great concept and I like the fact that I can throw them in the washer and dryer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2024
S
Verified Purchase
SC6218
Lake Worth, US
★★★★★ 5
Actually works, and really well
Color: Original Grey
I bought these because I got them on a great deal and was quite skeptical, but they actually worked exactly as advertised and I saw a huge difference after the first night! I understand why they don’t cover the whole foot like a regular sock (it would be stifling), but it would be incredible if they made a pair that go forward enough to cover the ball of the foot. One pair lasted about 3 weeks before the moisturizer wore out (I did notice a dropoff after washing, so for best results put them on when you’re clean and just for overnight, so you can avoid washing). Apologies for no photos- no one wants to see the before photos. These work so well I’ve just come back to order more even though I’m now paying full price. Definitely, definitely recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

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