SKU: 37397381170

Cylinder Head Gasket Chevrolet Mark-IV, GM Gen-V/VI Big Block V8 .040" MLS , 4.630" Bore, For Aftermarket Heads - Undersized Water Ports to Allow for Customization Cometic C5434-040

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Description

Cylinder Head Gasket Chevrolet Mark-IV, GM Gen-V/VI Big Block V8 .040" MLS , 4.630" Bore, For Aftermarket Heads - Undersized Water Ports to Allow for Customization Cometic C5434-040Cometic C5434 040 Chevrolet Mark IV, GM Gen V VI Big Block V8 . 040" MLS Cylinder Head Gasket, 4. 630" Bore, For Aftermarket Heads Undersized Water Ports to Allow for Customization Details: Material: MLS Compressed Thickness: . 040 Bore Shape: Valve Pocketed Bore Size (IN): 4. 630 # of layers: 3 Orientation: None Application list: Chevrolet Bel Air (1965 1975) Biscayne (1965 1972) Blazer (1973 1974) Brookwood (1969 1972) C10 (1975 1980) C10 Pickup

Cometic C5434-040 Chevrolet Mark-IV, GM Gen-V/VI Big Block V8 .040" MLS Cylinder Head Gasket, 4.630" Bore, For Aftermarket Heads - Undersized Water Ports to Allow for Customization

Details:

  • Material: MLS
  • Compressed Thickness: .040
  • Bore Shape: Valve Pocketed
  • Bore Size (IN): 4.630
  • # of layers: 3
  • Orientation: None

Application list:

Chevrolet
    Bel Air (1965-1975)
    Biscayne (1965-1972)
    Blazer (1973-1974)
    Brookwood (1969-1972)
    C10 (1975-1980)
    C10 Pickup (1968-1974)
    C10 Suburban (1968-1980)
    C1500 (1990)
    C20 (1975-1986)
    C20 Pickup (1968-1974)
    C20 Suburban (1968-1986)
    C30 (1975-1986)
    C30 Pickup (1968-1974)
    C3500 (1988-1990)
    Camaro (1967-1972)
    Caprice (1966-1976)
    Chevelle (1965-1973)
    Chevy II (1968)
    Corvette (1965-1974)
    El Camino (1966-1975)
    Estate (1969-1970)
    G10 Van (1973-1974)
    G20 (1976)
    G20 Van (1973-1974)
    G30 (1975-1976, 1988-1990)
    G30 Van (1973-1974, 1988-1990)
    Impala (1965-1976)
    K10 (1976-1976, 1979-1980)
    K10 Pickup (1968-1974)
    K10 Suburban (1968-1974)
    K20 (1976)
    K20 Pickup (1968-1974)
    K20 Suburban (1968)
    K30 (1977-1977, 1980-1986)
    K30 Pickup (1968-1974)
    K3500 (1988-1990)
    K5 Blazer (1976-1978)
    Kingswood (1969-1972)
    Laguna (1973-1975)
    Malibu (1965-1967, 1973-1975)
    Monte Carlo (1970-1975)
    Nova (1969-1972)
    P10 Van (1973)
    P20 (1976)
    P20 Van (1970)
    P30 (1975-1989)
    P30 Van (1970-1974)
    R20 (1987-1988)
    R20 Suburban (1987-1988)
    R2500 (1989)
    R2500 Suburban (1989-1990)
    R30 (1987-1988)
    R3500 (1989-1990)
    Townsman (1969-1972)
    V20 Suburban (1987-1988)
    V2500 Suburban (1990)
    V30 (1987-1988)
    V3500 (1989-1990)
GMC
    C15 Suburban (1975-1978)
    C15/C1500 Suburban (1968-1974)
    C1500 Pickup (1968-1980)
    C1500 Suburban (1979-1980)
    C25 Suburban (1975-1978)
    C25/C2500 Pickup (1968-1978)
    C25/C2500 Suburban (1968-1974)
    C2500 Pickup (1979-1986)
    C2500 Suburban (1979-1986)
    C35/C3500 Pickup (1968-1978)
    C3500 Pickup (1979-1986, 1988-1990)
    G25/G2500 Van (1975-1976)
    G35/G3500 Van (1973-1974, 1976-1976, 1988-1990)
    Jimmy (1973)
    K15/K1500 Pickup (1968)
    K15/K1500 Suburban (1968-1974)
    K1500 Pickup (1968-1974, 1976-1976, 1979-1980)
    K25 Pickup (1976-1978)
    K25 Suburban (1976-1977)
    K25/K2500 Pickup (1968-1974)
    K25/K2500 Suburban (1968-1974)
    K35/K3500 Pickup (1968-1974)
    K3500 Pickup (1979-1986, 1988-1990)
    P15/P1500 Van (1979)
    P25/P2500 Van (1970-1971)
    P35 Van (1975-1978)
    P35/P3500 Van (1970-1971, 1973-1974)
    P3500 Van (1979-1989)
    R2500 Pickup (1987-1989)
    R2500 Suburban (1987-1990)
    R3500 Pickup (1987-1990)
    Sprint (1971-1975)
    V3500 Pickup (1987-1990)
Pontiac
    Acadian (1968-1971)
    Beaumont (1965-1969)
    Laurentian (1966-1970)
    Parisienne (1966-1970)
    Strato-Chief (1965-1970)

Shipping Notes
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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: 37397381170

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4.2 ★★★★★
Based on 9 reviews
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Product Reviews
J
Jay
San Leandro, US
★★★★★ 3
Stretchy, but Smaller & Softer Than Expected; Berry Fragrance Dominates; May be Best 4 Puppies
I was directed to read guidelines that were on the internet, prior to use. I was not expecting that and that was a big turn-off. Basically, it's all about liability, this product has the possibility of being torn apart and I am basically warned that if a piece is chewed off, that's bigger than a grain of rice, to toss, this. I was repeatedly reminded, again and again, and again that pet safety was my responsibility. Yeah, I know that. All these suggestions and warnings should have been made clearer in the listing. Is this built to flex? Yes. Does it bend? Yes. Does it stretch? Yes. Is this rugged? That's open to debate, based on the users, for a puppy, to some degree, but their teeth are very sharp. Is this soft on teeth? I don't disagree. Does this have a durable design? Depends on the user. Floats in water? I do not doubt it. Does this have an enticing scent? For a human, yes, for a pet? Depends if your pet loves berries. This is no pigs ear/bone, so, chewing is not a natural draw that I saw, which I think may be better, because this is soft and easier to tear to pieces than expected. To motivate the first time, I found it best to initiate the tug of war, but this is smaller than I envisioned too, causing me to have to bend considerably to participate. A tennis ball in a tube sock is longer. A two-dog tug of war works best with this. Nevertheless, it's a better toy than teaching pooch to have a battle using clothing, avoiding future attractions to my socks. There is some flexibility to this. Durability is an issue. I think this would have been more interesting if it had been made out of rawhide. It does have a comfortable grip, for a human, but the toy pays a price for that with what I would consider fragility. The berry fragrance dominates, it's nice for a human, but sorry, it ain't no bacon aroma. It's like a thick heavy rubber hose. Value? In hindsight, I just do not see the value I was expecting. I mean really, a grain of rice warning not to use. Durability at issue in my eyes. Country of origin? Vietnam. Is this perfect? Not in my opinion. Rating? A strong three (3) stars at best in my eyes. This is not for a tough chewer. I have to constantly monitor its condition. It does succeed as a tug toy, but it has more limitations that I was expecting. I hope my thoughts added a bit of information.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
L
Verified Purchase
Liz. W
Cuba, US
★★★★★ 5
Long lasting
Size: 5 in
Love these. My dogs are aggressive chewing and these last the longest.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 25, 2025
A
Verified Purchase
Adrianna
Birmingham, US
★★★★★ 5
Bully proof?!
Size: 5 in
We have the cutest little pit/lab mix who destroys stuffed toys in about two seconds flat. It’s always a HUNT to find toys he won’t instantly shred. This brand has some of the best! They were in FiveBelow for a while and it was the only brand that stood up to him initially. He finally got through the first only after MONTHS so we bought a few back ups and they’re still going strong months later! They’re also not super heavy so these end up being the toys we play fetch with most often! 100% will be buying more in this line in the future!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 15, 2024
C
Verified Purchase
Carol
West Palm Beach, US
★★★★★ 4
Great Option
Size: 5 in
When this chew arrived, it immediately became a favorite. It seems sturdy and is soft enough to be dental friendly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2024
S
Verified Purchase
Stardust
Pawtucket, US
★★★★★ 5
Love these!
Size: 5 in
My dogs finally chewed pieces off of these bones but it took forever for them to do it and they didn’t chew very much off! These are great and I will buy more!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2023

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