SKU: 40484829002

Cometic Chevy BB Gen IV 4.320in Bore .062 inch MLS-5 396/402/427/454 Head Gasket

$127.15 $141.28
Save 10%
No.2 Bestseller on watersyst.com >

Pay in installments of $35.32 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 21 - Jul 26

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Cometic Chevy BB Gen IV 4.320in Bore .062 inch MLS-5 396/402/427/454 Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 062". Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.062". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.

This Part Fits:

Year Make Model Submodel
1965-1975 Chevrolet Bel Air Base
1965-1972 Chevrolet Biscayne Base
1973-1974 Chevrolet Blazer Base
1969-1972 Chevrolet Brookwood Base
1978-1980 Chevrolet C10 Big Ten
1975-1980 Chevrolet C10 Cheyenne
1975-1980 Chevrolet C10 Custom Deluxe
1975-1980 Chevrolet C10 Scottsdale
1975-1980 Chevrolet C10 Silverado
1968-1974 Chevrolet C10 Pickup Base
1968-1974 Chevrolet C10 Suburban Base
1975-1980 Chevrolet C10 Suburban Custom Deluxe
1975-1980 Chevrolet C10 Suburban Scottsdale
1975-1980 Chevrolet C10 Suburban Silverado
1990 Chevrolet C1500 454 SS
1990 Chevrolet C1500 Cheyenne
1990 Chevrolet C1500 Scottsdale
1990 Chevrolet C1500 Silverado
1990 Chevrolet C1500 WT
1975-1981 Chevrolet C20 Cheyenne
1981-1986 Chevrolet C20 Custom
1975-1980 Chevrolet C20 Custom Deluxe
1981 Chevrolet C20 Deluxe
1975-1986 Chevrolet C20 Scottsdale
1975-1986 Chevrolet C20 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
1975-1980,1982,1984-1986 Chevrolet C20 Suburban Scottsdale
1975-1977,1979-1980,1982-1986 Chevrolet C20 Suburban Silverado
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
1975-1986 Chevrolet C30 Silverado
1968-1974 Chevrolet C30 Pickup Base
1988-1990 Chevrolet C3500 Cheyenne
1988-1990 Chevrolet C3500 Scottsdale
1988-1990 Chevrolet C3500 Silverado
1967-1972 Chevrolet Camaro Base
1967,1969 Chevrolet Camaro RS
1967-1972 Chevrolet Camaro SS
1972 Chevrolet Camaro Z28
1966-1972 Chevrolet Caprice Base
1973-1976 Chevrolet Caprice Classic
1976 Chevrolet Caprice Classic Estate
1976 Chevrolet Caprice Classic Landau
1975-1976 Chevrolet Caprice Classic Sport
1973-1974 Chevrolet Caprice Estate
1975 Chevrolet Caprice Estate Wagon
1968 Chevrolet Chevelle 300
1968-1969 Chevrolet Chevelle 300 Deluxe
1965-1967,1970-1972 Chevrolet Chevelle Base
1967-1972 Chevrolet Chevelle Concours
1969-1972 Chevrolet Chevelle Concours Estate
1967,1973 Chevrolet Chevelle Deluxe
1969-1972 Chevrolet Chevelle Greenbrier
1968-1972 Chevrolet Chevelle Malibu
1968-1972 Chevrolet Chevelle Nomad
1965-1972 Chevrolet Chevelle SS
1968 Chevrolet Chevy II Nova
1965-1974 Chevrolet Corvette Base
1966-1975 Chevrolet El Camino Base
1968-1974 Chevrolet El Camino Custom
1968-1974 Chevrolet El Camino SS
1969-1970 Chevrolet Estate Base
1973-1974 Chevrolet G10 Van Base
1976 Chevrolet G20 Beauville
1976 Chevrolet G20 Chevy Van
1973-1974 Chevrolet G20 Van Base
1973-1974 Chevrolet G20 Van Sportvan
1975-1976,1988-1990 Chevrolet G30 Beauville
1975-1976,1988-1990 Chevrolet G30 Chevy Van
1975-1976,1988-1990 Chevrolet G30 Hi-Cube
1988-1990 Chevrolet G30 Sportvan
1973-1974 Chevrolet G30 Van Base
1965-1976 Chevrolet Impala Base
1975-1976 Chevrolet Impala Custom
1976 Chevrolet Impala Custom Landau
1976 Chevrolet Impala S
1975-1976 Chevrolet Impala Sport
1965-1967 Chevrolet Impala SS
1976,1979-1980 Chevrolet K10 Cheyenne
1976,1979-1980 Chevrolet K10 Custom Deluxe
1976,1979-1980 Chevrolet K10 Scottsdale
1976,1979-1980 Chevrolet K10 Silverado
1968-1974 Chevrolet K10 Pickup Base
1968-1974 Chevrolet K10 Suburban Base
1976,1979-1980 Chevrolet K10 Suburban Custom Deluxe
1976,1979-1980 Chevrolet K10 Suburban Scottsdale
1976,1979-1980 Chevrolet K10 Suburban Silverado
1976-1978,1980 Chevrolet K20 Cheyenne
1976-1978,1980 Chevrolet K20 Custom Deluxe
1976-1978,1980 Chevrolet K20 Scottsdale
1976-1978,1980 Chevrolet K20 Silverado
1968-1974 Chevrolet K20 Pickup Base
1968-1974 Chevrolet K20 Suburban Base
1985 Chevrolet K20 Suburban Custom
1976-1978,1980 Chevrolet K20 Suburban Custom Deluxe
1976-1978,1980,1985 Chevrolet K20 Suburban Scottsdale
1976-1977,1980,1985 Chevrolet K20 Suburban Silverado
1977,1980-1981 Chevrolet K30 Cheyenne
1981-1986 Chevrolet K30 Custom
1977,1980 Chevrolet K30 Custom Deluxe
1981 Chevrolet K30 Deluxe
1977,1980-1986 Chevrolet K30 Scottsdale
1977,1980-1986 Chevrolet K30 Silverado
1968-1974 Chevrolet K30 Pickup Base
1988-1990 Chevrolet K3500 Cheyenne
1988-1990 Chevrolet K3500 Scottsdale
1988-1990 Chevrolet K3500 Silverado
1976 Chevrolet K5 Blazer Base
1976-1978 Chevrolet K5 Blazer Cheyenne
1977-1978 Chevrolet K5 Blazer Custom Deluxe
1978 Chevrolet K5 Blazer Silverado
1969-1972 Chevrolet Kingswood Base
1969-1972 Chevrolet Kingswood Estate
1973-1975 Chevrolet Laguna Base
1973 Chevrolet Laguna Estate
1975 Chevrolet Laguna S3
1974 Chevrolet Laguna Type S-3
1965-1967,1973-1974 Chevrolet Malibu Base
1974-1975 Chevrolet Malibu Classic
1973-1974 Chevrolet Malibu Estate
1970-1974 Chevrolet Monte Carlo Base
1973-1974 Chevrolet Monte Carlo Landau
1973,1975 Chevrolet Monte Carlo S
1969-1972 Chevrolet Nova Base
1973 Chevrolet P10 Van Base
1976,1979 Chevrolet P20 Base
1976,1979 Chevrolet P20 Step-Van
1970-1971,1973 Chevrolet P20 Van Base
1975-1989 Chevrolet P30 Base
1975-1985,1987-1989 Chevrolet P30 Step-Van
1970-1974 Chevrolet P30 Van Base
1988 Chevrolet R20 Cheyenne
1987-1988 Chevrolet R20 Custom Deluxe
1987-1988 Chevrolet R20 Scottsdale
1987-1988 Chevrolet R20 Silverado
1987 Chevrolet R20 Suburban Custom Deluxe
1987-1988 Chevrolet R20 Suburban Scottsdale
1987-1988 Chevrolet R20 Suburban Silverado
1989 Chevrolet R2500 Cheyenne
1989 Chevrolet R2500 Scottsdale
1989 Chevrolet R2500 Silverado
1989-1990 Chevrolet R2500 Suburban Scottsdale
1989-1990 Chevrolet R2500 Suburban Silverado
1988 Chevrolet R30 Cheyenne
1987-1988 Chevrolet R30 Custom Deluxe
1987-1988 Chevrolet R30 Scottsdale
1987-1988 Chevrolet R30 Silverado
1989-1990 Chevrolet R3500 Cheyenne
1989-1990 Chevrolet R3500 Scottsdale
1989-1990 Chevrolet R3500 Silverado
1969-1972 Chevrolet Townsman Base
1987 Chevrolet V20 Suburban Custom Deluxe
1987-1988 Chevrolet V20 Suburban Scottsdale
1987-1988 Chevrolet V20 Suburban Silverado
1990 Chevrolet V2500 Suburban Scottsdale
1990 Chevrolet V2500 Suburban Silverado
1988 Chevrolet V30 Cheyenne
1987-1988 Chevrolet V30 Custom Deluxe
1987-1988 Chevrolet V30 Scottsdale
1987-1988 Chevrolet V30 Silverado
1989-1990 Chevrolet V3500 Cheyenne
1989-1990 Chevrolet V3500 Scottsdale
1989-1990 Chevrolet V3500 Silverado
1975-1978 GMC C15 Base
1977-1978 GMC C15 Heavy Half
1975-1978 GMC C15 High Sierra
1977 GMC C15 Indy Hauler
1975-1978 GMC C15 Sierra Classic
1975-1978 GMC C15 Sierra Grande
1978 GMC C15 Street Coupe
1975-1978 GMC C15 Suburban Base
1975-1978 GMC C15 Suburban High Sierra
1975-1978 GMC C15 Suburban Sierra Classic
1975-1978 GMC C15 Suburban Sierra Grande
1968-1974 GMC C15/C1500 Pickup Base
1968-1974 GMC C15/C1500 Suburban Base
1979-1980 GMC C1500 Base
1979-1980 GMC C1500 Heavy Half
1979-1980 GMC C1500 High Sierra
1979-1980 GMC C1500 Sierra Classic
1979-1980 GMC C1500 Sierra Grande
1979-1980 GMC C1500 Street Coupe
1979-1980 GMC C1500 Suburban Base
1979-1980 GMC C1500 Suburban High Sierra
1979-1980 GMC C1500 Suburban Sierra Classic
1979-1980 GMC C1500 Suburban Sierra Grande
1975-1978 GMC C25 Base
1975-1978 GMC C25 High Sierra
1975-1978 GMC C25 Sierra Classic
1975-1978 GMC C25 Sierra Grande
1975-1978 GMC C25 Suburban Base
1975-1978 GMC C25 Suburban High Sierra
1975-1978 GMC C25 Suburban Sierra Classic
PLEASE NOTE: Any Cometic Gasket Kit that is noted as "Special Order" will take approximately 2-3 weeks to produce and ship. Please plan your build accordingly as these are not sitting on a shelf at Cometic.
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: 40484829002

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 17 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Andres Monroy
Alexandria, US
★★★★★ 4
Very good watch
Color: White/Chrome-tone
Was a gift for my girlfriend. I even liked it has a mode for two different times sets. The strap does get dirty fast. But its really useful this watch and very good in estetics.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2025
A
Verified Purchase
Ashley
Waukegan, US
★★★★★ 5
Very nice feminine quality watch
Color: Pink/Rose Gold-Tone, Color: Pink/Rose Gold-Tone
I purchased this watch for work. As a nurse, I need the exact date and time in military time and seconds, so this watch is perfect. It’s the 3rd of this kind that I’ve ordered over the years and this one is definitely my favorite. Much easier to program than previous models and the look is very feminine and cute. Of course being water resistant is important since I have to wash my hands a million times a day. I’m hoping it will last a long time as previous models have. Usually the plastic band breaks from daily wear and tear before the battery has ever stopped, but that’s after years of daily use. That’s why I prefer to stick with this brand. They’ve always been very durable, lightweight, and effective for what I need it for. I would definitely recommend. This version is the cutest, like I would wear it even when not working. So I’m very happy with it. *** Update: 2 years later I still wear this watch everyday, at work or not. Has never broken, battery still going strong and still so pretty. Awesome 👏🏻
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 13, 2024
C
Verified Purchase
California customer
West Palm Beach, US
★★★★★ 5
Great modest, minimalist digital watch: 2 time zones, Indiglo, subtle hourly chime
Color: Purple/Silver-Tone
Great value and this is nice, low-key but functional and sleek timepiece. I bought it to replace an older Ironman (bulkier) watch that finally reached end of life after LOTS of adventures (still functions, but strap and face just really couldn't be taken into corporate or social settings without expectation of some heckling). I REALLY like most of the new features (especially the dual time zones, hourly chime (can toggle on/off), and Indiglo applied to the numbers/text rather than as background), I probably would have switched to this earlier if I had known of them. Slight negative that the hourly chime toggle is nested within the time setting workflow, so can't just nearly instantly switch it when heading into movie/performance/other setting where want to silence it fully. I can't speak to the water resistance of this one yet, have been taking it off to shower and haven't been swimming yet. (Taking it off to shower in part because had seen other reviews noting that the trim around the dial may not be long-lasting. So out of caution to extend its appearance, I'll probably remove it for salt/chlorinated water swims (not timing laps)). Only other aspect should note is that the feature that helps to "lock" the strap band at end (bit of a nub to catch) is bit tricky when putting it on / taking it off, may be even more so for those with arthritis or other condition that would make it extra challenging/frustrating to maneuver and engage. Quite happy with it overall though, just a slight annoyance when putting on / taking off (which may not apply for most if they just leave it on).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2023
S
Verified Purchase
Sarah
Louisville, US
★★★★★ 3
Good Everyday Watch - But Scratches Easily!
Color: White/Chrome-tone, Color: White/Chrome-tone
This is exactly the watch I was looking for. I needed a basic watch that is waterproof, can also act as a stopwatch, I don’t need to charge, and hold up to regular wear and kid activities. Set up was incredibly easy and didn’t need any directions. The size and style are slim and sleek making it easy to wear under just about anything or wear to bed. I’ve had Iron Man watches in the past that I’ve loved. I lost my recent one hence this replacement. I’m hopeful that this watch can hold up to every day wear and not have any of the wristband or chipping issues as other users have seen. Will come back to update the review after a few weeks of wear. 3/19/26: Back for an update. Watch function is still great but the face of the watch gets scratched so easily. I questioned these reviews when I ordered the watch thinking, “how bad could it be?” And they’re right. Super easily scratched. I have no idea how I even scratched/damaged mine. Doesn’t affect function but frustrated that it happened within a month of use/wear. I suppose you get what you pay for - very disappointing for well known brand such as Timex. Lost two stars for this sole reason.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
J
Verified Purchase
Jay
Draper, US
★★★★★ 3
Functionally not bad, but style is meh
Color: Blue/Rose Gold-Tone, Color: Blue/Rose Gold-Tone
Likes: Very easy to read with the large numbers/characters The “indiglo” lighting seems to efficient in dark/dim light Dislikes: Setup is not easy. It did not come with instructions. Watch time lags behind Find the watch a little uncomfortable on the wrist I need a watch for the clinical portion of my schooling. This watch is not terrible. The display is easy to read and the indiglo light displays well. Ultimately, I’ve decided to return it. I wish it had instructions. I got by enough to set the correct time and date, but it appears there are two times you can preset it to. So maybe you can have one set as one time zone & the other another time zone. I was going to set one as normal time and the other as military time, but couldn’t figure out how to set which preset you want to currently display, so I just set both as the same exact thing. I like a different watch, also purchased from Amazon, better for myself after comparing it to this timex. I just don’t care for the look of this one. It looks a bit too juvenile. My sister described it well as a watch she “would have worn as late elementary/middle schooler” and I agree. I have a feeling that maybe it doesn’t come across as such in the white. White was my first choice, but other reviews mentioned the band dirtying and not being able to remove stains/coloring, so I went with this blue band color. Also, something about the watch was a bit uncomfortable while wearing it and I have a hunch settling in to wearing it more would not solve that discomfort much, if at all. Also, I initially set the watch 2 minutes early against the time on my phone. But it’s now days later and I noticed it runs behind the time on my phone by about 30 seconds. Both the watch I compared to this one and this timex itself claim to be water resistant, but I have not tested those claims with any hand washing or anything. I trust they’ll be fine in that sense. Also haven’t tried the alarm/stopwatch features as they’re not exactly needs of mine. Overall, I like that the look of the watch I like better in comparison will not only serve its purpose for my schooling just fine, but it also looks less kiddy, was cheaper, and actually came with instructions. If all you care about is big easy to read characters and don’t mind if your watch time ends up being a little behind, this timex is fine. If you want/expect more/different than that, maybe keep looking elsewhere because you can probably find more of what you’re seeking out and possibly even cheaper than this timex.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2021

recommand products

Carver Route E.510
749.50
POLARPRA 1pcs Catalytic Converter for 2002-2009 Toyota Camry 2.4L 58230
92.99
Dreams & Drapes Oakley Easycare Printed Polycotton Pillowcase Pair In Mid Blue
16.00
Moroso Racing Air Cleaner - 14in x 3in Filter - Flat Bottom - Steel - Chrome Plated - 4500
106.99
Fellowship Porter 5.1% abv - 5 litre Mini Cask
28.00