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Ships within 48 hours · Estimated delivery Sep 25 - Sep 30
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Muscle Series Valve Covers for small block Chevy engines-Black Finish - 241-135Overview: Holley is pleased to introduce their Muscle Series Small Block Chevy valve covers inspired by 1970's era GM factory L82 LT1 Z28 equipped engines. These valve covers are a continuation of Holley's Vintage Series valve cover line featuring a classic finned design and retro styling cues. Each set consists of one valve cover with a twist in oil fill knockout (oil fill cap included) and one with a recessed area to place an adhesive backed Holley
Overview:
Holley is pleased to introduce their Muscle Series Small Block Chevy valve covers inspired by 1970's era GM factory L82/LT1/Z28 equipped engines. These valve covers are a continuation of Holley's Vintage Series valve cover line featuring a classic finned design and retro styling cues. Each set consists of one valve cover with a twist-in oil fill knockout (oil fill cap included) and one with a recessed area to place an adhesive backed Holley emblem (also included) or any round emblem of your choice.
Features:
- Designed to fit all 1958-86 Small Block Chevy engines with perimeter bolt patterns
- Die-Cast aluminum construction ensures high detail and reduces the opportunity for warping of the valve cover flange and oil leaks
- Standard height valve cover with pre-installed internal oil baffles
- Factory style twist-in oil fill cap, round Holley emblem, and square oil fill and PCV grommets included
- Available in four finishes to best suit your custom build: natural, polished, gloss black, factory orange
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1969 - 1986 | Chevrolet | K10 Suburban | 350/5.7L V8 | |
| 1969 - 1986 | Chevrolet | K20 Suburban | 350/5.7L V8 | |
| 1969 - 1986 | Chevrolet | C20 Suburban | 350/5.7L V8 | |
| 1969 - 1986 | Chevrolet | C10 Suburban | 350/5.7L V8 | |
| 1969 - 1986 | Chevrolet | Caprice | 350/5.7L V8 | |
| 1969 - 1986 | Chevrolet | Corvette | 350/5.7L V8 | |
| 1969 - 1985 | Chevrolet | Impala | 350/5.7L V8 | |
| 1970 - 1986 | GMC | Jimmy | 350/5.7L V8 | |
| 1967 - 1981 | Chevrolet | Camaro | 350/5.7L V8 | |
| 1975 - 1986 | Chevrolet | K10 | 350/5.7L V8 | |
| 1975 - 1986 | Chevrolet | K20 | 350/5.7L V8 | |
| 1968 - 1979 | Chevrolet | El Camino | 350/5.7L V8 | |
| 1975 - 1986 | Chevrolet | G10 | 350/5.7L V8 | |
| 1975 - 1986 | Chevrolet | G20 | 350/5.7L V8 | |
| 1975 - 1986 | Chevrolet | G30 | 350/5.7L V8 | |
| 1975 - 1986 | Chevrolet | K5 Blazer | 350/5.7L V8 | |
| 1975 - 1986 | Chevrolet | C10 | 350/5.7L V8 | |
| 1975 - 1986 | Chevrolet | C20 | 350/5.7L V8 | |
| 1975 - 1986 | Chevrolet | C30 | 350/5.7L V8 | |
| 1957 - 1967 | Pontiac | Laurentian | 283/4.6L V8 | |
| 1957 - 1967 | Chevrolet | Bel Air | 283/4.6L V8 | |
| 1976 - 1986 | Chevrolet | Monte Carlo | 305/5L V8 | |
| 1976 - 1986 | Chevrolet | El Camino | 305/5L V8 | |
| 1976 - 1986 | Chevrolet | Camaro | 305/5L V8 | |
| 1969 - 1979 | Chevrolet | Nova | 350/5.7L V8 | |
| 1958 - 1967 | Chevrolet | Impala | 283/4.6L V8 | |
| 1958 - 1967 | Pontiac | Strato-Chief | 283/4.6L V8 | |
| 1958 - 1967 | Chevrolet | Biscayne | 283/4.6L V8 | |
| 1977 - 1986 | Chevrolet | K10 | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | K10 Suburban | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | K20 Suburban | 305/5L V8 | |
| 1977 - 1986 | Pontiac | Firebird | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | G10 | 305/5L V8 | |
| 1977 - 1986 | Pontiac | Parisienne | 305/5L V8 | |
| 1977 - 1986 | Buick | Regal | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | K5 Blazer | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | C10 | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | C10 Suburban | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | C20 | 305/5L V8 | |
| 1977 - 1986 | GMC | Jimmy | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | C20 Suburban | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | Caprice | 305/5L V8 | |
| 1977 - 1986 | Chevrolet | K30 | 350/5.7L V8 | |
| 1959 - 1967 | Pontiac | Parisienne | 283/4.6L V8 | |
| 1959 - 1967 | Chevrolet | El Camino | 283/4.6L V8 | |
| 1977 - 1985 | Chevrolet | K20 | 305/5L V8 | |
| 1978 - 1986 | Oldsmobile | Cutlass | 305/5L V8 | |
| 1978 - 1986 | Oldsmobile | Cutlass Supreme | 305/5L V8 | |
| 1978 - 1986 | Pontiac | Grand Prix | 305/5L V8 | |
| 1977 - 1985 | Chevrolet | Impala | 305/5L V8 | |
| 1978 - 1986 | GMC | Caballero | 305/5L V8 | |
| 1973 - 1981 | Chevrolet | Malibu | 350/5.7L V8 | |
| 1960 - 1967 | Chevrolet | C30 Pickup | 283/4.6L V8 | |
| 1960 - 1967 | Chevrolet | C10 Pickup | 283/4.6L V8 | |
| 1960 - 1967 | Chevrolet | K10 Pickup | 283/4.6L V8 | |
| 1960 - 1967 | Chevrolet | C20 Pickup | 283/4.6L V8 | |
| 1960 - 1967 | Chevrolet | K20 Pickup | 283/4.6L V8 | |
| 1976 - 1983 | Chevrolet | Malibu | 305/5L V8 | |
| 1979 - 1986 | GMC | C1500 | 305/5L V8 | |
| 1979 - 1986 | GMC | C1500 Suburban | 305/5L V8 | |
| 1976 - 1983 | Pontiac | Grand LeMans | 305/5L V8 | |
| 1978 - 1985 | Chevrolet | G30 | 305/5L V8 | |
| 1979 - 1986 | GMC | G1500 | 305/5L V8 | |
| 1962 - 1969 | Chevrolet | Biscayne | 327/5.3L V8 | |
| 1962 - 1969 | Chevrolet | Impala | 327/5.3L V8 | |
| 1962 - 1969 | Chevrolet | Bel Air | 327/5.3L V8 | |
| 1962 - 1969 | Pontiac | Parisienne | 327/5.3L V8 | |
| 1962 - 1969 | Pontiac | Strato-Chief | 327/5.3L V8 | |
| 1962 - 1969 | Pontiac | Laurentian | 327/5.3L V8 | |
| 1970 - 1977 | Chevrolet | Monte Carlo | 350/5.7L V8 | |
| 1979 - 1986 | GMC | C1500 | 350/5.7L V8 | |
| 1979 - 1986 | GMC | C1500 Suburban | 350/5.7L V8 | |
| 1979 - 1986 | GMC | C2500 | 350/5.7L V8 | |
| 1979 - 1986 |
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
4.3 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Great
Color: 14AWG-2 Lead
Good quality and affordable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2024
★★★★★ 4
Got me hooked UP!
Color: 14AWG-2 Lead, Color: 14AWG-2 Lead
This harness was easy to use long enough to reach all my lights and got me lit up in about an hour only because I had to drill holes for my lights themselves. The harness was super easy to use super easy to tie strap up, so it wouldn’t be seeing or keep out of the way of moving parts
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2024
★★★★★ 5
Good value, nice kit, simple install if you are OK with auto wiring.
Color: 26Inch light White +Wiring Harness
This is my second purchase of this light system. It is a great value for the money. It is pretty darned bright. The wiring harness is complete and would make for an easy install as directed. I'm an EE, so I did some hacks on the system myself, I added some connections to the existing headlight circuit so I could slave the high beam switch to the light bar. Now the switch included with the system functions as an arming switch for the light bar, rather than a simple on/off function. Prior, to turn the bar on and off, you of course used the switch. Now, the bar is slaved to the high beams, so both bar and stock high beams come on using the stock light lever on the steering column, and bar and high beams turn off when you set the lever to low beams. This allows the bar to act as a complement to the high beams, and for you to control them with the high beam lever after arming the system to do so. Overall, a great setup and good product. This bar is installed on my 2000 Fourrunner, my first is installed on a 2003 E350 where I did the first high beam+light bar trick.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
Wiring harness not included!
Color: 26Inch Light White, Color: 26Inch Light White
Replaced my 19 inch Nilight after 6 years. This 26 inch fits perfectly and is bright af. Outstanding product. Doesn’t come with wiring harness, but my existing one worked great. Looks awesome!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
★★★★★ 5
Brighter than my headlights on bright!
Color: 26Inch Light White
This Nilight 26 inch 540 watt 50,000 lumen Triple Row Driving light is the brightest light I've ever had on my truck.
I bought a kit to mount the light to my Grill Guard, just above the bumper. I can see deer just like daytime, at least two blocks before I get to them. I've never seen a light bar as bright. There are no cons if you ignore the fact that it comes without a wiring harness.
I definitely recommend this light bar!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026