Pay in installments of $10.06 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 30 - Oct 5
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Mr. Gasket Steel Shim Head Gasket - 1131GOverview: Mr. Gasket Steel Shim Cylinder Head Gaskets are for high performance street machines, drag racing and oval track racing. With today's extreme compression ratios you need stronger more durable gaskets. Mr. Gasket steel shim gaskets are made from . 020 inch steel shim stock which is thinner than most composite gaskets increasing engine compression. Stress formed embossments will seal the extreme cylinder pressure. Features: Manufactured from .
Overview:
Mr. Gasket Steel Shim Cylinder Head Gaskets are for high performance street machines, drag racing and oval track racing. With today's extreme compression ratios you need stronger more durable gaskets. Mr. Gasket steel shim gaskets are made from .020 inch steel shim stock which is thinner than most composite gaskets increasing engine compression. Stress formed embossments will seal the extreme cylinder pressure.
Features:
- Manufactured from .020" steel shim stock.
- Thinner than composition head gaskets - increases engine compression.
- Stress formed embossments seal extreme cylinder pressures.
- For high performance street, drag race and oval track use.
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1971 - 1972 | Chevrolet | Caprice | 402/6.6 V8 | |
| 1970 - 1976 | Chevrolet | Caprice | 454/7.4 V8 | |
| 1965 - 1970 | Chevrolet | Chevelle | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | Chevelle | 400/6.6 V8 | |
| 1970 - 1973 | Chevrolet | Chevelle | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Chevelle | 402/6.6 V8 | |
| 1973 - 1985 | Chevrolet | K20 Suburban | 454/7.4 V8 | |
| 1970 - 1971 | Chevrolet | K30 Pickup | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | K30 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | Chevrolet | K30 Pickup | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Kingswood | 454/7.4 V8 | |
| 1971 - 1972 | Chevrolet | Kingswood | 402/6.6 V8 | |
| 1973 - 1975 | Chevrolet | Laguna | 454/7.4 V8 | |
| 1973 - 1975 | Chevrolet | Malibu | 454/7.4 V8 | |
| 1966 - 1967 | Chevrolet | Malibu | 396/6.5 V8 | |
| 1970 - 1975 | Chevrolet | Monte Carlo | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Monte Carlo | 402/6.6 V8 | |
| 1970 - 1975 | Chevrolet | Bel Air | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K5 Blazer | 454/7.4 V8 | |
| 1975 - 1980 | Chevrolet | C10 | 454/7.4 V8 | |
| 1973 - 1980 | Chevrolet | C10 Suburban | 454/7.4 V8 | |
| 1971 - 1972 | Chevrolet | Bel Air | 400/6.6 V8 | |
| 1971 - 1972 | Chevrolet | Bel Air | 402/6.6 V8 | |
| 1965 - 1969 | Chevrolet | Biscayne | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Biscayne | 427/7 V8 | |
| 1970 - 1972 | Chevrolet | Biscayne | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | K20 Pickup | 454/7.4 V8 | |
| 1979 - 1986 | GMC | K3500 | 454/7.4 V8 | |
| 1987 - 1989 | GMC | R3500 | 454/7.4 V8 | |
| 1971 - 1975 | GMC | Sprint | 402/6.6 V8 | |
| 1971 - 1975 | GMC | Sprint | 454/7.4 V8 | |
| 1987 - 1989 | GMC | V3500 | 454/7.4 V8 | |
| 1965 - 1969 | Chevrolet | Bel Air | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Bel Air | 427/7 V8 | |
| 1971 - 1972 | Chevrolet | Biscayne | 400/6.6 V8 | |
| 1971 - 1972 | Chevrolet | Biscayne | 402/6.6 V8 | |
| 1974 | Chevrolet | K10 Pickup | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | K10 Suburban | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | K20 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | GMC | C15/C1500 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | GMC | C15/C1500 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | GMC | C15/C1500 Pickup | 402/6.6 V8 | |
| 1968 - 1969 | GMC | C15/C1500 Suburban | 396/6.5 V8 | |
| 1970 - 1972 | GMC | C15/C1500 Suburban | 402/6.6 V8 | |
| 1973 - 1974 | GMC | C15/C1500 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | GMC | K35/K3500 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | GMC | K35/K3500 Pickup | 454/7.4 V8 | |
| 1970 - 1971 | GMC | K35/K3500 Pickup | 402/6.6 V8 | |
| 1973 - 1976 | GMC | Jimmy | 454/7.4 V8 | |
| 1968 - 1969 | GMC | K15/K1500 Pickup | 396/6.5 V8 | |
| 1968 | GMC | K15/K1500 Suburban | 396/6.5 V8 | |
| 1974 | GMC | K15/K1500 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | GMC | K25/K2500 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | GMC | K15/K1500 Suburban | 402/6.6 V8 | |
| 1973 - 1974 | GMC | K25/K2500 Pickup | 454/7.4 V8 | |
| 1968 | GMC | K25/K2500 Suburban | 396/6.5 V8 | |
| 1974 | GMC | K25/K2500 Suburban | 454/7.4 V8 | |
| 1969 - 1970 | Chevrolet | Nova | 396/6.5 V8 | |
| 1987 - 1988 | Chevrolet | V30 | 454/7.4 V8 | |
| 1989 | Chevrolet | V3500 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C15 | 454/7.4 V8 | |
| 1979 - 1980 | GMC | C1500 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C15 Suburban | 454/7.4 V8 | |
| 1970 - 1976 | Chevrolet | Impala | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | K10 Pickup | 396/6.5 V8 | |
| 1968 - 1969 | Chevrolet | K10 Suburban | 396/6.5 V8 | |
| 1979 - 1986 | GMC | C2500 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C25 Suburban | 454/7.4 V8 | |
| 1979 - 1986 | GMC | C2500 Suburban | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C35 | 454/7.4 V8 | |
| 1979 - 1986 | GMC | C3500 | 454/7.4 V8 | |
| 1975 - 1976 | GMC | G25 | 454/7.4 V8 | |
| 1976 | GMC | G35 | 454/7.4 V8 | |
| 1976 | GMC | K15 | 454/7.4 V8 | |
| 1980 | GMC | K1500 | 454/7.4 V8 | |
| 1976 - 1978 | GMC | K25 | 454/7.4 V8 | |
| 1976 - 1977 | GMC | K25 Suburban | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | G30 Van | 454/7.4 V8 | |
| 1965 - 1969 | Chevrolet | Impala | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Impala | 427/7 V8 | |
| 1971 - 1972 | Chevrolet | Impala | 402/6.6 V8 | |
| 1968 | Chevrolet | Chevy II | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Corvette | 427/7 V8 | |
| 1965 | Chevrolet | Corvette | 396/6.5 V8 | |
| 1970 - 1974 | Chevrolet | Corvette | 454/7.4 V8 | |
| 1975 - 1986 | Chevrolet | C20 | 454/7.4 V8 | |
| 1973 - 1986 | Chevrolet | C20 Suburban | 454/7.4 V8 | |
| 1975 - 1986 | Chevrolet | C30 | 454/7.4 V8 | |
| 1971 - 1972 | Chevrolet | Caprice | 400/6.6 V8 | |
| 1968 - 1969 | GMC | C25/C2500 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | GMC | C25/C2500 Pickup | 402/6.6 V8 | |
| 1973 - 1974 | GMC | C25/C2500 Pickup | 454/7.4 V8 | |
| 1970 - 1972 | GMC | C25/C2500 Suburban | 402/6.6 V8 | |
| 1968 - 1969 | GMC | C25/C2500 Suburban | 396/6.5 V8 | |
| 1974 | GMC | C25/C2500 Suburban | 454/7.4 V8 | |
| 1970 - 1975 | Chevrolet | El Camino | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | G10 Van | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | G20 Van | 454/7.4 V8 | |
| 1976 | Chevrolet | G20 | 454/7.4 V8 | |
| 1975 - 1976 | Chevrolet | G30 | 454/7.4 V8 | |
| 1976 - 1980 | Chevrolet | K10 | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K20 | 454/7.4 V8 | |
| 1977 - 1986 | Chevrolet | K30 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R30 | 454/7.4 V8 | |
| 1989 | Chevrolet | R3500 | 454/7.4 V8 | |
| 1979 - 1980 | GMC | C1500 Suburban | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C25 | 454/7.4 V8 | |
| 1973 - 1974 | GMC | C35/C3500 Pickup | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | C20 Pickup | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | C20 Pickup | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | C20 Suburban | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | C20 Suburban | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | C30 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | C30 Pickup | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | C30 Pickup | 454/7.4 V8 | |
| 1967 - 1969 | Chevrolet | Camaro | 396/6.5 V8 | |
| 1969 | Chevrolet | Camaro | 427/7 V8 | |
| 1970 - 1972 | Chevrolet | Camaro | 402/6.6 V8 | |
| 1966 - 1969 | Chevrolet | Caprice | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Caprice | 427/7 V8 | |
| 1970 - 1972 | GMC | C35/C3500 Pickup | 402/6.6 V8 | |
| 1968 - 1969 | GMC | C35/C3500 Pickup | 396/6.5 V8 | |
| 1966 - 1970 | Chevrolet | El Camino | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | El Camino | 400/6.6 V8 | |
| 1970 - 1972 | Chevrolet | El Camino | 402/6.6 V8 | |
| 1973 | Chevrolet | Blazer | 454/7.4 V8 | |
| 1972 | Chevrolet | Brookwood | 400/6.6 V8 | |
| 1972 | Chevrolet | Brookwood | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | C10 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | C10 Pickup | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | C10 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | C10 Suburban | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | C10 Suburban | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | C20 Pickup | 396/6.5 V8 | |
| 1970 | Chevrolet | Nova | 402/6.6 V8 | |
| 1970 - 1972 | Chevrolet | Townsman | 454/7.4 V8 | |
| 1972 | Chevrolet | Townsman | 402/6.6 V8 |
Specs:
| Application | Big Block Chevy |
|---|---|
| Brand | Mr. Gasket |
| Compressed Thickness | .020 inch |
| Compression Ratio | Up to 12:1 |
| Emission Code | 5 |
| Engine | Chevrolet Big Block Mark IV |
| Gasket Bore | 4.370 inch |
| Gasket Line | Performance |
| Material | Steel Shim |
| Packaging | Retail |
| Product Type | Head Gasket |
| Quantity Per Pkg. | 1 |
| Warranty | Limited 90 Day |
| Weight | 0.5 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.2 ★★★★★
Based on 16 reviews
Sort
Product Reviews
★★★★★ 5
A Difficult to Find T-Shirt
These T-Shirts are nice. A super difficult to find. The manufacturer calls it a mock-turtle neck (MTN). But the collar height is actually a bit shorter than the traditional MTN, which is great. It's closer to a regular T-Shirt that comes all the way to the neckline. And very somt a comfortable. This is the perfect style of T-Shirt to wear under a sportscoat, if desired. Or under a shirt where you want the T-Shirt to show for contrast. Just the right look.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
★★★★★ 1
Sugerencia
Me llego pero el pedido tiene un fuerte mal olor a agua tipo de químico que aún lavandolo no se se va el mal olor . primera ves que me pasa esto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
★★★★★ 4
Nice shirts for the price! But do not recommend for thick body types.
I bought 3 different ones. 2 Mediums and 1 2XL. The mediums fit correct and really nice! Would definitely recommend for the price! More like a exercise material, and sticks to your body shape... Sooo the 2Xl did not fit the person correct. Was so tight... And the strech is to stick to your body... So would not recommend for anyone a bit hefty or fit tbh. But the shirts are good materials and feel nice for a fresh day out or to use as gym clothes!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 26, 2025
★★★★★ 5
Great Value heat gear material with high neck collar and loose fitting
Color: Black, Size: X-Large
My husband has been looking for mock neck shirts that are comparable to UA heat gear material but that are short sleeve and fit loose to wear under his work uniform. These seemed to have been a good soft quality option and the price is is great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
★★★★★ 5
Bought second one
Color: Navy, Size: Medium
I bought the black T-shirt about a month ago and really liked the quality the fabric is soft, the fit is great, and it holds up well after washing. So I decided to get the same one in dark blue.Very satisfied with the purchase
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025