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Description
Mr. Gasket Fabricated Aluminum Valve Covers - Black Finish - 6831BGOverview: Mr. Gasket fabricated aluminum valve covers offer you a strong and lightweight valve cover at an affordable price. For your street, off road, or racing machine. Constructed of 6061 T5 sheet aluminum and precision TIG welded for a great fit. We offer silver anodized or black coated finishes along with various heights to clear most popular rocker arm combinations. Features: High quality 100% TIG welded construction Constructed of 6061 T5 sheet
Overview:
Mr. Gasket fabricated aluminum valve covers offer you a strong and lightweight valve cover at an affordable price. For your street, off-road, or racing machine. Constructed of 6061 T5 sheet aluminum and precision TIG welded for a great fit. We offer silver anodized or black coated finishes along with various heights to clear most popular rocker arm combinations.
Features:
- High quality 100% TIG welded construction
- Constructed of 6061 T5 sheet aluminum
- 1/4†thick 1-piece CNC billet flange for superior sealing
- Your choice of silver anodized or black coated finishes
- Applications for most popular GM, Ford, and Chrysler
- Standard height or tall height available for additional valve train clearance
- Includes mounting hardware
- Sold as a pair
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1973 - 1975 | Chevrolet | Malibu | 454/7.4 V8 | |
| 1970 - 1975 | Chevrolet | Monte Carlo | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Monte Carlo | 402/6.6 V8 | |
| 1970 - 1972 | Chevrolet | Nova | 402/6.6 V8 | |
| 1969 - 1970 | Chevrolet | Nova | 396/6.5 V8 | |
| 1970 - 1971 | Chevrolet | Nova | 454/7.4 V8 | |
| 1969 | Chevrolet | Townsman | 396/6.5 V8 | |
| 1969 | Chevrolet | Townsman | 427/7 V8 | |
| 1970 - 1972 | Chevrolet | Townsman | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Townsman | 402/6.6 V8 | |
| 1970 | Chevrolet | Estate | 402/6.6 V8 | |
| 1969 | Chevrolet | Estate | 396/6.5 V8 | |
| 1969 | Chevrolet | Estate | 427/7 V8 | |
| 1970 | Chevrolet | Estate | 454/7.4 V8 | |
| 1965 - 1967 | Chevrolet | Malibu | 396/6.5 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 | |
| 1990 - 1993 | Chevrolet | C1500 | 454/7.4 V8 | |
| 1975 - 1986 | Chevrolet | C20 | 454/7.4 V8 | |
| 1973 - 1986 | Chevrolet | C20 Suburban | 454/7.4 V8 | |
| 1991 - 1995 | Chevrolet | C2500 | 454/7.4 V8 | |
| 1992 - 1995 | Chevrolet | 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 | |
| 1973 - 1974 | Chevrolet | G30 Van | 454/7.4 V8 | |
| 1966 - 1969 | Chevrolet | Impala | 427/7 V8 | |
| 1965 - 1969 | Chevrolet | Impala | 396/6.5 V8 | |
| 1970 - 1976 | Chevrolet | Impala | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Impala | 402/6.6 V8 | |
| 1970 - 1972 | Chevrolet | K10 Pickup | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | K10 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | Chevrolet | K10 Pickup | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | K10 Suburban | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | K10 Suburban | 396/6.5 V8 | |
| 1973 - 1974 | Chevrolet | K10 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | K20 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | K20 Pickup | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | K20 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | K20 Suburban | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | K20 Suburban | 402/6.6 V8 | |
| 1973 - 1985 | Chevrolet | K20 Suburban | 454/7.4 V8 | |
| 1970 - 1972 | 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 | |
| 1970 - 1972 | Chevrolet | Kingswood | 402/6.6 V8 | |
| 1969 | Chevrolet | Kingswood | 396/6.5 V8 | |
| 1969 | Chevrolet | Kingswood | 427/7 V8 | |
| 1973 - 1975 | Chevrolet | Laguna | 454/7.4 V8 | |
| 1991 - 1995 | Chevrolet | K2500 | 454/7.4 V8 | |
| 1992 - 1995 | Chevrolet | K2500 Suburban | 454/7.4 V8 | |
| 1977 - 1986 | Chevrolet | K30 | 454/7.4 V8 | |
| 1988 - 1995 | Chevrolet | K3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R20 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R20 Suburban | 454/7.4 V8 | |
| 1989 | Chevrolet | R2500 | 454/7.4 V8 | |
| 1989 - 1991 | Chevrolet | R2500 Suburban | 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 - 1972 | Chevrolet | C20 Pickup | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | C20 Pickup | 454/7.4 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 | Chevrolet | Caprice | 402/6.6 V8 | |
| 1970 - 1976 | Chevrolet | Caprice | 454/7.4 V8 | |
| 1965 - 1970 | Chevrolet | Chevelle | 396/6.5 V8 | |
| 1970 - 1973 | Chevrolet | Chevelle | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Chevelle | 402/6.6 V8 | |
| 1968 | Chevrolet | Chevy II | 396/6.5 V8 | |
| 1965 | Chevrolet | Corvette | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Corvette | 427/7 V8 | |
| 1970 - 1974 | Chevrolet | Corvette | 454/7.4 V8 | |
| 1966 - 1970 | Chevrolet | El Camino | 396/6.5 V8 | |
| 1975 - 1986 | Chevrolet | C30 | 454/7.4 V8 | |
| 1988 - 1995 | Chevrolet | C3500 | 454/7.4 V8 | |
| 1976 | Chevrolet | G20 | 454/7.4 V8 | |
| 1975 - 1996 | Chevrolet | G30 | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | El Camino | 402/6.6 V8 | |
| 1987 - 1988 | Chevrolet | R30 | 454/7.4 V8 | |
| 1989 - 1991 | Chevrolet | R3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V20 Suburban | 454/7.4 V8 | |
| 1990 | Chevrolet | V2500 Suburban | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V30 | 454/7.4 V8 | |
| 1989 - 1991 | Chevrolet | V3500 | 454/7.4 V8 | |
| 1993 | GMC | K2500 Suburban | 454/7.4 V8 | |
| 1965 - 1969 | Chevrolet | Bel Air | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Bel Air | 427/7 V8 | |
| 1970 - 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 | |
| 1970 - 1972 | Chevrolet | Biscayne | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | Blazer | 454/7.4 V8 | |
| 1969 | Chevrolet | Brookwood | 396/6.5 V8 | |
| 1969 | Chevrolet | Brookwood | 427/7 V8 | |
| 1970 - 1972 | Chevrolet | Brookwood | 454/7.4 V8 | |
| 1970 - 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 | |
| 1976 - 1980 | Chevrolet | K10 | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K20 | 454/7.4 V8 |
Specs:
| Application | Big Block Chevy |
|---|---|
| Baffle Included | Yes |
| Bolt Pattern | Perimeter |
| Brand | Mr. Gasket |
| Breather Opening Size | 1.25 inch |
| Breather(s) Included | No |
| Emission Code | 5 |
| Finish | Black |
| Flange Thickness | 0.25 inch |
| Gaskets Included | No |
| Gromment(s) Included | No |
| Height | 3.75" |
| Length | 22.125 inch |
| Logo | None |
| Material | Fabricated Aluminum |
| Mounting Hardware Included | Yes |
| Oil Fill | Yes |
| Product Type | Valve Cover |
| Style | Tall Bolt BBC |
| Warranty | Limited 90 Day |
| Width | 6.75 inch |
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 9 reviews
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Product Reviews
★★★★★ 5
Saves So Much Time, Perfect Fit On Mercruiser Pre-Alpha Outdrive.
This is a very useful kit. Perfect fit to exchange and align the gimbal bearing on a Mercruiser MR/Pre-Alpha Outdrive. The metal rods are strong and well machined to fit the gimbal bearing and the template lines up great with the housing studs. The overall production quality is very good. Great value because the tools are very durable but for me the biggest value is the time saved. I had the bearing out in about 10 minutes. The ability to line up the bearing before attempting to attach the outdrive upper gear unit is very convenient and saves so much time. This are simple tools, very easy to use.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Easy to use
Works great
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Works well. You need to drill a 3/8” hole
Appears to be well made, alignment bar slides in nicely. As stated, you need to drill a hole in the bar for the gimble bearing driver, the directions are not clear, what I did was before I take out the old gimble bearing, put an O ring on the bar close to the last step on the bar, slide the bar all the way in, then carefully slide the bar out, this marks the distance from the back of the gimble bearing to where the shaft on the outdrive bottoms out, move the O ring a 1/4” towards the stepped part of the alignment tool (this is so you won’t bottom out the alignment tool when driving the gimble bearing in) then slide the driver puck up to the O ring and use a 3/8” diameter transfer punch through the side hole in the puck to mark the bar. You need to drill a 3/8” diameter hole in the alignment bar, two V blocks, some clamps, and a drill press will make drilling much easier, after the bar is securely mounted and centered in the drill press, use a center drill, then 1/4” drill first, using plenty of oil, drill all the way through, then use the 3/8” drill, deburr both sides and you should be good to go. People complain that it doesn’t come pre-drilled, the reason is that not all out drives are the same so you have to fit it to the outdrive that you have. Fortunately, I have a machine shop at my house and have a jig setup with various drill bushings, but the method I described above should work for you. Just make sure you’re perfectly centered and secure before you start drilling.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
A must pull your gimbal bearing
You do need to drill a hole but worked perfect
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Reviewed in the United States on December 26, 2025
★★★★★ 5
Worked for Volvo Penta SX Gimbal Bearing
Very heavy tool, I was surprised. Pulled my bearing like it was nothing. Putting the new bearing in was a little more difficult as you have to drill a hole in the engine alignment shaft where it will work for your particular outdrive. Not hard, but it does not come pre-drilled as the required depth for each particular gimbal bearing differs by manufacturer and model. Measure your bearing placement before removal and check that it was installed correctly in the first place. The bearing should line up with the grease fitting and the o-rings on the drive shaft should end up riding in the middle of the bearing. once you have your measurement drill the hole, I used a drill press. I suppose you could use it on multiple outdrive models as long as you can drill more holes.
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Reviewed in the United States on June 5, 2023