SKU: 45992019751

Comp Cams Nitrided Camshaft, CB XM 278H-12

$167.37 $185.97
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Comp Cams Nitrided Camshaft, CB XM 278H-12COMP Cams Xtreme Marine camshafts take advantage of the newest developments in camshaft engineering. Their aggressive lobe design produces better throttle response and top end horsepower than other cams with the same duration at . 050 in., while delivering increased engine vacuum. These cams are available for everything from pleasure boats to race applications, so you can always enjoy Xtreme performance on the water. From hydraulic and mechanical, to

COMP Cams Xtreme Marine camshafts take advantage of the newest developments in camshaft engineering. Their aggressive lobe design produces better throttle response and top-end horsepower than other cams with the same duration at .050 in., while delivering increased engine vacuum. These cams are available for everything from pleasure boats to race applications, so you can always enjoy Xtreme performance on the water. From hydraulic and mechanical, to flat and roller tappet, COMP Cams offers camshafts for your watercraft dating as far back as the 1950s. 

Specifications

Part Type:Camshafts

Product Line:COMP Cams Xtreme Marine Camshafts

Cam Style:Hydraulic flat tappet

Basic Operating RPM Range:2,000-6,200

Intake Duration at 050 inch Lift:234

Exhaust Duration at 050 inch Lift:244

Duration at 050 inch Lift:234 int./244 exh.

Advertised Intake Duration:278

Advertised Exhaust Duration:292

Advertised Duration:278 int./292 exh.

Intake Valve Lift with Factory Rocker Arm Ratio:0.564 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio:0.566 in.

Valve Lift with Factory Rocker Arm Ratio:0.564 int./0.566 exh.

Lobe Separation (degrees):112

Computer-Controlled Compatible:No

Valve Springs Required:Yes

Quantity:Sold individually



Vehicle Fitments:

Year Make Model Submodel
1967 - 1975 Chevrolet Bel Air Base
1967 - 1972 Chevrolet Biscayne Base
1973 - 1974 Chevrolet Blazer Base
1969 - 1972 Chevrolet Brookwood Base
1978 - 1980 Chevrolet C10 Big Ten
1975 - 1980 Chevrolet C10 Custom Deluxe, Custom, Cheyenne, Silverado, Scottsdale
1968 - 1974 Chevrolet C10 Pickup Base
1968 - 1974 Chevrolet C10 Suburban Base
1975 - 1980 Chevrolet C10 Suburban Scottsdale, Silverado, Custom Deluxe
1990 - 1991 Chevrolet C1500 Base
1990 - 1993 Chevrolet C1500 Cheyenne, WT, Silverado, 454 SS
1990 - 1992 Chevrolet C1500 Scottsdale
1986 Chevrolet C20 Base
1981 - 1986 Chevrolet C20 Custom
1975 - 1980 Chevrolet C20 Custom Deluxe
1981 Chevrolet C20 Deluxe
1975 - 1986 Chevrolet C20 Scottsdale, Cheyenne, Silverado
1968 - 1974 Chevrolet C20 Pickup Base
1968 - 1974 Chevrolet C20 Suburban Base
1981 - 1986 Chevrolet C20 Suburban Custom
1975 - 1980 Chevrolet C20 Suburban Custom Deluxe
1981 Chevrolet C20 Suburban Deluxe
1975 - 1986 Chevrolet C20 Suburban Silverado, Scottsdale
1993 Chevrolet C2500 400 SS, Custom
1991 - 1995 Chevrolet C2500 Cheyenne, Base, Silverado
1991 - 1992 Chevrolet C2500 Scottsdale
1994 - 1995 Chevrolet C2500 WT
1992 - 1995 Chevrolet C2500 Suburban Base
1995 Chevrolet C2500 Suburban LS, LT
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1975 - 1982 Chevrolet C30 Base
1975 - 1981 Chevrolet C30 Cheyenne
1981 - 1986 Chevrolet C30 Custom
1975 - 1980 Chevrolet C30 Custom Deluxe
1981 Chevrolet C30 Deluxe
1975 - 1986 Chevrolet C30 Scottsdale, Silverado
1968 - 1974 Chevrolet C30 Pickup Base
1994 - 1995 Chevrolet C3500 Base
1988 - 1995 Chevrolet C3500 Cheyenne, Silverado
1988 - 1992 Chevrolet C3500 Scottsdale
1967 - 1972 Chevrolet Camaro RS, SS, Base, Z28
1967 - 1974 Chevrolet Caprice Base
1973 - 1976 Chevrolet Caprice Classic
1976 Chevrolet Caprice Classic Landau, Classic Estate
1975 - 1976 Chevrolet Caprice Classic Sport
1973 - 1974 Chevrolet Caprice Estate
1975 Chevrolet Caprice Estate Wagon
1967 - 1968 Chevrolet Chevelle 300
1967 - 1969 Chevrolet Chevelle 300 Deluxe
1969 - 1972 Chevrolet Chevelle Concours Estate, Greenbrier
1967 - 1972 Chevrolet Chevelle Concours, Base, SS
1967 - 1973 Chevrolet Chevelle Deluxe
1968 - 1972 Chevrolet Chevelle Malibu, Nomad
1968 Chevrolet Chevy II Nova
1967 - 1974 Chevrolet Corvette Base
1967 - 1975 Chevrolet El Camino Base
1975 Chevrolet El Camino Classic
1968 - 1974 Chevrolet El Camino Custom
1968 - 1975 Chevrolet El Camino SS
1969 - 1970 Chevrolet Estate Base
1973 - 1974 Chevrolet G10 Van Base, Sportvan
1976 Chevrolet G20 Chevy Van, Beauville, Sportvan
1973 - 1974 Chevrolet G20 Van Sportvan, Base
1975 - 1996 Chevrolet G30 Hi-Cube, Beauville, Sportvan, Chevy Van
1973 - 1974 Chevrolet G30 Van Base, Sportvan
1967 - 1976 Chevrolet Impala Base
1976 Chevrolet Impala S, Custom Landau
1975 - 1976 Chevrolet Impala Sport, Custom
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1976 - 1980 Chevrolet K10 Cheyenne, Silverado, Scottsdale, Custom Deluxe
1968 - 1974 Chevrolet K10 Pickup Base
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1985 Chevrolet K20 Suburban Custom, Scottsdale, Silverado
1994 - 1995 Chevrolet K2500 Base, WT
1991 - 1995 Chevrolet K2500 Cheyenne, Silverado
1991 - 1992 Chevrolet K2500 Scottsdale
1992 - 1995 Chevrolet K2500 Suburban Base
1995 Chevrolet K2500 Suburban LS, LT
1992 - 1994 Chevrolet K2500 Suburban Silverado
1977 - 1981 Chevrolet K30 Cheyenne
1981 - 1986 Chevrolet K30 Custom
1977 - 1980 Chevrolet K30 Custom Deluxe
1981 Chevrolet K30 Deluxe
1977 - 1986 Chevrolet K30 Scottsdale, Silverado
1968 - 1974 Chevrolet K30 Pickup Base
1994 - 1995 Chevrolet K3500 Base
1988 - 1995 Chevrolet K3500 Cheyenne, Silverado
1988 - 1992 Chevrolet K3500 Scottsdale
1976 Chevrolet K5 Blazer Base
1976 - 1978 Chevrolet K5 Blazer Cheyenne
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1969 - 1972 Chevrolet Kingswood Estate, Base
1973 - 1975 Chevrolet Laguna Base
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1970 - 1974 Chevrolet Monte Carlo Base
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1973 - 1975 Chevrolet Monte Carlo S
1969 - 1972 Chevrolet Nova Base
1973 Chevrolet P10 Van Base
1976 - 1979 Chevrolet P20 Step-Van, Base
1970 - 1973 Chevrolet P20 Van Base
1975 - 1997 Chevrolet P30 Base
1975 - 1990 Chevrolet P30 Step-Van
1970 - 1974 Chevrolet P30 Van Base
1988 Chevrolet R20 Cheyenne
1987 - 1988 Chevrolet R20 Silverado, Scottsdale, Custom Deluxe
1987 Chevrolet R20 Suburban Custom Deluxe
1987 - 1988 Chevrolet R20 Suburban Silverado, Scottsdale
1989 Chevrolet R2500 Cheyenne, Silverado, Scottsdale
1989 - 1991 Chevrolet R2500 Suburban Scottsdale, Silverado
1988 Chevrolet R30 Cheyenne
1987 - 1988 Chevrolet R30 Scottsdale, Custom Deluxe, Silverado
1989 - 1990 Chevrolet R3500 Scottsdale
1989 - 1991 Chevrolet R3500 Silverado, Cheyenne
1969 - 1972 Chevrolet Townsman Base
1987 Chevrolet V20 Suburban Custom Deluxe
1987 - 1988 Chevrolet V20 Suburban Silverado, Scottsdale
1990 Chevrolet V2500 Suburban Silverado, Scottsdale
1988 Chevrolet V30 Cheyenne
1987 - 1988 Chevrolet V30 Scottsdale, Custom Deluxe, Silverado
1989 - 1990 Chevrolet V3500 Scottsdale
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1972 - 1979 Excalibur Phaeton Base
1977 - 1978 GMC C15 Heavy Half
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1975 - 1978 GMC C25 Base, High Sierra, Sierra Classic, Sierra Grande
1975 - 1978 GMC C25 Suburban Base, Sierra Classic, Sierra Grande, High Sierra
1968 - 1974 GMC C25/C2500 Pickup Base
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1979 - 1986 GMC C2500 Sierra Classic, High Sierra, Base
1979 - 1982 GMC C2500 Sierra Grande
1994 - 1995 GMC C2500 Sierra SL, Sierra SLT
1991 - 1995 GMC C2500 Sierra SLE
1991 - 1993 GMC C2500 Sierra, Sierra SLX
1979 - 1995 GMC C2500 Suburban Base
1979 - 1986 GMC C2500 Suburban High Sierra, Sierra Classic
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1992 - 1995 GMC C2500 Suburban SLE
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1988 GMC G3500 Rally Custom
1973 - 1976 GMC Jimmy Base
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1976 GMC K15 Base, Sierra Classic, High Sierra, Sierra Grande
1968 - 1974 GMC K15/K1500 Pickup Base
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1979 - 1980 GMC K1500 Sierra Grande, Base, High Sierra, Sierra Classic
1976 - 1978 GMC K25 Base, Sierra Grande, Sierra Classic, High Sierra
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1968 - 1974 GMC K25/K2500 Pickup Base
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1994 - 1995 GMC K2500 Sierra SL, Sierra SLT
1991 - 1995 GMC K2500 Sierra SLE
1991 - 1993 GMC K2500 Sierra SLX, Sierra
1992 - 1995 GMC K2500 Suburban SLE, Base
1995 GMC K2500 Suburban SLT
1968 - 1974 GMC K35/K3500 Pickup Base
1979 - 1986 GMC K3500 High Sierra, Sierra Classic, Base
1979 - 1982 GMC K3500 Sierra Grande
1988 - 1995 GMC K3500 Sierra SLE
1994 - 1995 GMC K3500 Sierra SLT, Sierra SL
1988 - 1993 GMC K3500 Sierra, Sierra SLX
1979 GMC P1500 Base, Value Van
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1975 - 1978 GMC P35 Value Van, Base
1970 - 1974 GMC P35/P3500 Van Base
1974 GMC P35/P3500 Van Motorhome
1979 - 1997 GMC P3500 Base
1979 - 1990 GMC P3500 Value Van
1987 - 1989 GMC R2500 Sierra Classic, Base, High Sierra
1987 - 1991 GMC R2500 Suburban Base
1987 GMC R2500 Suburban High Sierra
1987 - 1989 GMC R2500 Suburban Sierra Classic
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1987 - 1991 GMC R3500 Base
1987 - 1989 GMC R3500 Sierra Classic, High Sierra
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1971 - 1975 GMC Sprint Base
1972 - 1974 GMC Sprint Custom
1975 GMC Sprint High Sierra, Classic, SP
1987 - 1991 GMC V3500 Base
1987 - 1989 GMC V3500 High Sierra, Sierra Classic
1990 - 1991 GMC V3500 SLE
1969 - 1974 Iso Grifo 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: 45992019751

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4.8 ★★★★★
Based on 8 reviews
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Product Reviews
N
Verified Purchase
Ninel Bubon
San Leandro, US
★★★★★ 5
It is real and natural. No synthetic- no allergy!!!
Size: 2' x 6' (Double Pelt), Color: Brown Tipped
SUPER QUALITY, the color is exactly like on the picture, I love it!!! Thank you!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
R
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R. L.
Chelsea, US
★★★★★ 5
Soft and luxurious, high quality - but don't buy if you have cats
Color: Ivory White, Size: 2' x 6' (Sheepskin Shape)
I give the rug a five-star rating because it deserves it. I was really surprised at how good the rug is right out of the package (it was packaged very well too). Because this rug is relatively less expensive than many other listings of natural sheepskin rugs on Amazon and elsewhere, I wasn't expecting much. But it turned out to be thick, soft, fluffy, plush, and luxurious all over. Many years ago I have purchased another natural sheepskin rug from Amazon described to be of the same size as this one (I got the 2'*6' one), but this one is definitely much bigger in its actual size. It's hands-down a high-quality, high-value purchase if you want a nice natural sheepskin rug. I also love how beautiful the natural creamy white color is. Now, the story takes a turn. It does have a "natural and organic" smell as mentioned in many other reviews. The smell itself is not repulsive. I don't know how long it will take for it to air out (my last rug never really got rid of the smell, but it was not a big issue since I put it on the floor. I lost the rug in cross country moving.) But now I have a cat! My cat just couldn't resist tackling the rug the moment it was laid on the floor. She probably imagined herself to be a lion or a tiger who just caught some big prey. She couldn't stop kicking and biting the rug, trying to tear it apart. She came back to it a few times after breaks already. And this is day one. I am guessing this smell does stimulate some instinctive call from her genes. In a few short moments, she managed to tear off quite some fur from the edge of the rug... The rug still looks fine since I just received it today. I am not sure how long it will last with my cat though. Before ordering, I thought about this possibility and googled whether cats and sheepskin rugs can co-exist. I got many cute picture results showing angelic cats resting contently in the long and soft sheepskin fur, looking totally adorable and peaceful. Many articles say that natural rugs calm our fluffy friends down. Well, I told myself "perfect!" Win-win for me and my cat. Now, here we are, the beginning of my cat's conquest of an imaginary lamb (which was a real lamb.) I cannot even return it since it has already been damaged by my cat... In the worst case, this rug would become a really expensive cat entertainment piece that would eventually be destroyed....:((( I even started feeling guilty for buying animal-based products - but then comforted myself by remembering reading somewhere that cow and lamb leather goods come from animals that would be slaughtered for meat consumption anyways. My cat is already eating canned food containing Australian lamb, etc, etc. Really need to stop the thoughts. So this is my review. Beautiful rug of excellent quality and unbeatable value, unless you have a cat(s).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2022
R
Verified Purchase
reader2
Massapequa, US
★★★★★ 5
Good quality, nice looking, cozy
Color: Cream Brown, Size: 2 x 6 ft Sheepskin
Good quality, accurate color. Perfect length for floor beside queen size bed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
K
Verified Purchase
Kae @treehousebus
Natrona Heights, US
★★★★★ 5
Perfect for a queen bed
Color: Tan, Size: 2' x 6' (Sheepskin Shape), Color: Tan, Size: 2' x 6' (Sheepskin Shape)
I LOVE this rug. I’m so glad I bought this instead of a cheap dupe. Reasonably priced, arrived quickly, doesn’t smell. It’s super soft and fluffy and really dense, so far I haven’t noticed any shedding. The size is perfect for draping across a queen bed. The color is beautiful and feels very natural. I might buy a second one for my bus conversion! Thank you so much!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
S
Verified Purchase
🤪SillyBanana🍌
Charlottesville, US
★★★★★ 5
It's perfect!
Color: Snow Grey, Size: 2' x 3' (Sheepskin Shape)
Gorgeous and soft! We love it! Very quality fur.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026

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