SKU: 42796651707

Cometic Oldsmobile 330-455 V8 4.2 inch Bore .040 inch MLS Head Gasket

$118.80 $132.00
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Description

Cometic Oldsmobile 330-455 V8 4.2 inch Bore .040 inch MLS Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". 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 0.040". 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
1973-1975 Buick Apollo Base
1975 Buick Apollo SR
1973 Buick Centurion Base
1973-1977 Buick Century Base
1975-1977 Buick Century Custom
1976 Buick Century Indianapolis 500 Pace Car
1973-1975 Buick Century Luxus
1976-1979 Buick Electra 225
1975 Buick Electra Custom
1980 Buick Electra Estate Wagon
1975-1980 Buick Electra Limited
1978-1980 Buick Electra Park Avenue
1973,1975-1980 Buick Estate Wagon Base
1972 Buick GS Base
1972-1975,1977-1980 Buick LeSabre Base
1972-1973,1975-1978 Buick LeSabre Custom
1977 Buick LeSabre Custom Sport
1979-1980 Buick LeSabre Limited
1974 Buick LeSabre Luxus
1973-1977 Buick Regal Base
1976-1977 Buick Regal SR
1975-1980 Buick Riviera Base
1975 Buick Riviera GS
1978 Buick Riviera LXXV Anniversary Edition
1979-1980 Buick Riviera S
1976 Buick Riviera Sport
1976 Buick Riviera SR
1972 Buick Skylark 350
1972,1975-1977 Buick Skylark Base
1972 Buick Skylark Custom
1976-1977 Buick Skylark S
1975-1977 Buick Skylark SR
1972 Buick Sportwagon Base
1979-1980 Cadillac Eldorado Base
1979-1980 Cadillac Eldorado Biarritz
1979-1980 Cadillac Eldorado Cabriolet
1976-1980 Cadillac Seville Base
1978-1980 Cadillac Seville Elegante
1977-1978 Cadillac Seville Opera
1972-1975 Chevrolet Bel Air Base
1972 Chevrolet Biscayne Base
1972 Chevrolet Brookwood Base
1972 Chevrolet C10 Pickup Base
1972 Chevrolet C20 Suburban Base
1972 Chevrolet C30 Pickup Base
1972-1975 Chevrolet Camaro Base
1973-1975 Chevrolet Camaro LT
1972-1973,1975 Chevrolet Camaro RS
1972 Chevrolet Camaro SS
1973 Chevrolet Camaro Z28
1972 Chevrolet Caprice Base
1973-1975 Chevrolet Caprice Classic
1975 Chevrolet Caprice Classic Sport
1973-1974 Chevrolet Caprice Estate
1972 Chevrolet Chevelle Base
1972 Chevrolet Chevelle Concours
1972 Chevrolet Chevelle Concours Estate
1973 Chevrolet Chevelle Deluxe
1972 Chevrolet Chevelle Greenbrier
1973 Chevrolet Chevelle Laguna
1973 Chevrolet Chevelle Laguna Estate
1975 Chevrolet Chevelle Laguna Type S-3
1972-1975 Chevrolet Chevelle Malibu
1974-1975 Chevrolet Chevelle Malibu Classic
1974-1975 Chevrolet Chevelle Malibu Classic Estate
1973 Chevrolet Chevelle Malibu Estate
1972 Chevrolet Chevelle Nomad
1972 Chevrolet Chevelle SS
1972-1975 Chevrolet El Camino Base
1975 Chevrolet El Camino Classic
1972-1974 Chevrolet El Camino Custom
1972 Chevrolet El Camino SS
1972 Chevrolet G10 Van Base
1972 Chevrolet G10 Van Sportvan
1972 Chevrolet G20 Van Base
1972 Chevrolet G20 Van Sportvan
1972 Chevrolet G30 Van Base
1972 Chevrolet G30 Van Sportvan
1972-1975 Chevrolet Impala Base
1975 Chevrolet Impala Custom
1975 Chevrolet Impala Sport
1972 Chevrolet K10 Pickup Base
1972 Chevrolet K10 Suburban Base
1972 Chevrolet K20 Pickup Base
1972 Chevrolet K20 Suburban Base
1972 Chevrolet K30 Pickup Base
1972 Chevrolet Kingswood Base
1972 Chevrolet Kingswood Estate
1972-1974 Chevrolet Monte Carlo Base
1973-1974 Chevrolet Monte Carlo Landau
1973,1975 Chevrolet Monte Carlo S
1972-1975 Chevrolet Nova Base
1973-1975 Chevrolet Nova Custom
1975 Chevrolet Nova LN
1972 Chevrolet Townsman Base
1972 GMC C15/C1500 Pickup Base
1972 GMC C15/C1500 Suburban Base
1972 GMC C25/C2500 Pickup Base
1972 GMC C25/C2500 Suburban Base
1972 GMC C35/C3500 Pickup Base
1972 GMC K15/K1500 Pickup Base
1972 GMC K25/K2500 Pickup Base
1972 GMC K25/K2500 Suburban Base
1972 GMC K35/K3500 Pickup Base
1972-1975 GMC Sprint Base
1975 GMC Sprint Classic
1972-1974 GMC Sprint Custom
1975 GMC Sprint High Sierra
1975 GMC Sprint SP
1973-1974 GMC Transmode Base
1964-1971 Oldsmobile 442 Base
1968-1974 Oldsmobile 98 Base
1975-1980 Oldsmobile 98 Luxury
1973-1980 Oldsmobile 98 Regency
1971-1980 Oldsmobile Custom Cruiser Base
1975-1976 Oldsmobile Custom Cruiser Panel
1975,1977 Oldsmobile Cutlass 442
1964-1975,1980 Oldsmobile Cutlass Base
1980 Oldsmobile Cutlass Brougham
1977 Oldsmobile Cutlass Colonnade
1976-1977 Oldsmobile Cutlass Colonnade S
1972 Oldsmobile Cutlass Cruiser
1964-1967 Oldsmobile Cutlass Holiday
1980 Oldsmobile Cutlass LS
1968,1971-1977 Oldsmobile Cutlass S
1967 Oldsmobile Cutlass Turnpike Cruiser
1976-1977,1979 Oldsmobile Cutlass Vista Cruiser
1979 Oldsmobile Cutlass Vista Cruiser Brougham
1979-1980 Oldsmobile Cutlass Calais Base
1980 Oldsmobile Cutlass Cruiser Brougham
1979 Oldsmobile Cutlass Salon 442
1975-1977,1979 Oldsmobile Cutlass Salon Base
1979 Oldsmobile Cutlass Salon Hurst
1967-1977,1979-1980 Oldsmobile Cutlass Supreme Base
1977,1979-1980 Oldsmobile Cutlass Supreme Brougham
1976-1977 Oldsmobile Cutlass Supreme Colonnade
1974-1975 Oldsmobile Cutlass Supreme Cruiser
1975 Oldsmobile Cutlass Supreme Hurst
1976 Oldsmobile Cutlass Tiara Base
1967-1968 Oldsmobile Delmont 88 Base
1967 Oldsmobile Delmont 88 Holiday
1968-1980 Oldsmobile Delta 88 Base
1968-1971 Oldsmobile Delta 88 Custom
1980 Oldsmobile Delta 88 Holiday
1969-1980 Oldsmobile Delta 88 Royale
1980 Oldsmobile Delta 88 Royale Brougham
1964-1972 Oldsmobile F85 Base
1964-1966 Oldsmobile F85 Deluxe
1966 Oldsmobile F85 Holiday
1964-1966 Oldsmobile Jetstar 88 Base
1964-1966 Oldsmobile Jetstar 88 Holiday
1973-1977 Oldsmobile Omega Base
1976-1977 Oldsmobile Omega Brougham
1977 Oldsmobile Omega Deluxe
1976 Oldsmobile Omega F85
1975 Oldsmobile Omega Salon
1976-1977 Oldsmobile Omega SX
1968-1974 Oldsmobile Toronado Base
1971-1976,1979-1980 Oldsmobile Toronado Brougham
1968-1970,1975-1976 Oldsmobile Toronado Custom
1980 Oldsmobile Toronado XSC
1979 Oldsmobile Toronado XSR
1964-1975 Oldsmobile Vista Cruiser Base
1964-1967 Oldsmobile Vista Cruiser Custom
1977-1980 Pontiac Bonneville Base
1977-1980 Pontiac Bonneville Brougham
1978-1980 Pontiac Bonneville Safari
1977-1980 Pontiac Catalina Base
1977-1980 Pontiac Catalina Safari
1976-1977 Pontiac Firebird Base
1976-1977 Pontiac Firebird Esprit
1976-1977 Pontiac Firebird Formula
1975 Pontiac Grand Am Base
1975-1977 Pontiac Grand LeMans Base
1977 Pontiac Grand LeMans Safari
1976-1977 Pontiac Grand Prix Base
1977 Pontiac Grand Prix LJ
1976 Pontiac Grand Prix SJ
1977 Pontiac Grand Safari Base
1975-1977 Pontiac LeMans Base
1977 Pontiac LeMans Safari
1975-1977 Pontiac LeMans Sport
1977 Pontiac Phoenix Base
1975-1977 Pontiac Ventura Base
1975 Pontiac Ventura Custom
1975-1977 Pontiac Ventura SJ
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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SKU: 42796651707

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4.3 ★★★★★
Based on 10 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Ideal speaker wall mounts
Size: Standard--black
These speaker mounts were better than expected for the price. The mounts hold the speakers securely also tilt and swivel to get the sound where needed. Well thought out design, easy to mount, looks great also. Mounting hardware was included. I would purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
B
Verified Purchase
Bret BigDawg
Natrona Heights, US
★★★★★ 5
Well made, sturdy, and work great!
Work great for our KEF bookshelf speakers, would definitely buy again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
C
Verified Purchase
Colby D. May
West Palm Beach, US
★★★★★ 4
Almost perfect, absolutely fit for purpose, and a great value
Size: Standard--black
These are really, really close to being five stars, but because of my OCD tendencies when it comes to things being true and level, I can only go four. The way these mounts are made, speakers rest inside and on the inner surface of the L-shaped adjustable side brackets, and not on the large metal plate between them. Leveling on the fore-and-aft plane can easily be handled via the adjustment nut on the bottom of the bracket. But there is no provision for side-to-side leveling, so if the manufacturing of the side brackets is not within tolerance, you'll wind up with a speaker that's ever-so-slightly wonky...which is the case with ONE of my mounts. The bubble is still between the lines, but it's kissing the left line. Most would not care about this, and I'm not too bummed about it, but I am able to see that much out-of-true with the naked eye. It's not enough to pursue any kind of remediation, because the value on these really is awfully good. They are solidly built, easy to install, and easy to adjust. The manufacturer is apparently improving the product as they go based on feedback, as some issues that have vexed other owners have not been a problem for me, such as the wall plates being or coming loose (the design now ensures they stay put once pushed back to the wall), or the adjustment nut and bolt rotating freely and not staying tight (the ones on mine are great and function as intended). For the price, these are really hard to beat, and I have a feeling all the mounts like this with the different oddly-named brands are made in the same factory. That being the case, get the cheapest ones, and the day I bought mine, these were those.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 15, 2025
S
Verified Purchase
Seth Johnson
Pawtucket, US
★★★★★ 5
Solid and easy to install
Size: Standard--black
These are nice, solid wall mounts. They assembled quickly and easily, and they can hold larger bookshelf speakers like my Cambridge Soundworks M60s. Adjusting the plate to match speaker size is pretty easy, and they seem to grip the speaker tight enough that they won't fall off. The tilt option is very useful and a good feature when speakers are mounted high and need to tilt down toward the listener. Just remember to tighten the bolt on the bottom once you've positioned it where you want it. I would definitely recommend these to anyone looking for solid, well priced speaker mounts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2025
M
Verified Purchase
Mark K
Pawtucket, US
★★★★★ 5
Well made. Easy install.
Size: Standard--black, Size: Standard--black
These were easy to install. All the hardware was included. They look good. Seems well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026

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