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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Holley Cast Aluminum Timing Chain Cover - 21-150Overview: Holley now offers a solution to the plastic OEM timing chain covers on 1996 up Vortec Small Block Chevy engines. Our cast aluminum timing chain covers are an excellent upgrade from the OEM part, offering the superior durability of an aluminum part with improved functionality. These cast aluminum covers feature timing indicators molded into the body and are available with or without a crank sensor provision to accommodate both carbureted and
Overview:
Holley now offers a solution to the plastic OEM timing chain covers on 1996-up Vortec Small Block Chevy engines. Our cast aluminum timing chain covers are an excellent upgrade from the OEM part, offering the superior durability of an aluminum part with improved functionality.
These cast aluminum covers feature timing indicators molded into the body and are available with or without a crank sensor provision to accommodate both carbureted and EFI applications. The covers are available in two finishes; Natural Cast and Satin Black. They are packaged with a high quality gasket and E-coated mounting hardware for added corrosion resistance
Features:
- Designed as an upgrade from the plastic OEM timing chain covers on 1996-up Vortec Small Block Chevy engines - Replaces GM part numbers 10244600, 12523972, 12523973, 12558343, 12562818, & 93800970
- Excellent upgrade for Chevrolet Performance crate engines that use the plastic timing chain cover
- Available for EFI (with crank sensor provisions) and carbureted applications (without crank sensor provision)
- Includes over-molded FKM oil seal, virtually eliminating concerns of the seal spinning out at high temperatures, which is common with other aluminum timing covers
- Timing indicator cast into the cover – Intended for use with 8” Vortec balancers and other popular 8” aftermarket balancers
- Accommodates both stock and aftermarket water pumps
- Includes high quality gasket, corrosion resistant E-coated hardware, and dowel pins
- Offered in Natural Cast and Satin Black finishes
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1985 - 1986 | Chevrolet | C10 | 262/4.3L V6 | |
| 1985 - 1986 | Chevrolet | C20 | 262/4.3L V6 | |
| 1985 - 1986 | Chevrolet | G10 | 262/4.3L V6 | |
| 1985 - 1986 | Chevrolet | G20 | 262/4.3L V6 | |
| 1985 - 1986 | Chevrolet | G30 | 262/4.3L V6 | |
| 1985 - 1986 | Chevrolet | K10 | 262/4.3L V6 | |
| 1985 - 1986 | GMC | C1500 | 262/4.3L V6 | |
| 1985 - 1986 | GMC | C2500 | 262/4.3L V6 | |
| 1985 - 1986 | GMC | G3500 | 262/4.3L V6 | |
| 1985 - 1986 | GMC | K1500 | 262/4.3L V6 | |
| 1985 - 1986 | GMC | G1500 | 262/4.3L V6 | |
| 1985 - 1986 | GMC | G2500 | 262/4.3L V6 | |
| 1985 | Chevrolet | Astro | 262/4.3L V6 | |
| 1985 | Chevrolet | K20 | 262/4.3L V6 | |
| 1985 | GMC | K2500 | 262/4.3L V6 | |
| 1985 | GMC | Safari | 262/4.3L V6 |
Specs:
| Application | Small Block Chevy |
|---|---|
| Brand | Holley |
| Crank Sensor Provision | No |
| Emission Code | 5 |
| Engine | Chevrolet VORTEC V8 |
| Finish | Natural |
| Gaskets Included | Yes |
| Material | Aluminum |
| Mounting Hardware Included | Yes |
| Product Type | Timing Chain Cover |
| Thickness | Standard OEM |
| Warranty | Limited 90 Day |
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 1285 reviews
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Product Reviews
★★★★★ 5
Super cute
Color: Bunny (Mauve), Size: Small
Super cute and fuzzy. Definitely perfect size for a puppy and not too loud. The fur is very soft and the nose is sown on not a hard piece that can be chewed on. Very good quality too.
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Reviewed in the United States on June 3, 2026
★★★★★ 4
Normally amazing
Color: Spiky Ball (Blue, Orange), Size: Medium
We have purchased these slightly spiky dog balls several times for our very strong jaw heavy chewer dogs and they’ve been amazing. They don’t break down they don’t get torn apart the squeakers don’t even pop out of them.
So we ordered another package because we’ve lost a few outside to the lawnmower… oops and the package that got delivered today had only one ball that squeaks and the other does not. THIS IS A PROBLEM ! Unfortunately my female dog got to the new squeaking ball first and my male got to the non-squeaking ball and he was NOT happy. Basically once they claim a ball it’s theirs and the other dogs don’t go near the ball they claimed. So he’s following my female around and every time she squeaks the ball and I’m just waiting for him to attempt to take it from her causing damage to her. Normally… These are amazingly fun, tough, durable but also squeaking balls (that’s rare in a tough ball) that my dogs absolutely love.
This time just got a bad batch I guess. When they squeak the dogs LOVE them. After several months of play the squeaker might break inside of the ball but the ball never comes apart or gets damaged. And we as the owners love that they don’t break down are not able to be ripped or torn even by our very strong jawed and big jaw muscle dogs.
They are also great for in the house play because they’re small enough that they fit completely inside our dog‘s mouth but obviously not small enough to get swallowed so when we throw them in the house for fetch the dogs can jump up and catch them fully in their mouth so they don’t cause any damage to the walls when they hit the walls. They’re not super heavy but they’re incredibly durable.
Definitely worth the price especially if you have heavy chewers or big jaw muscle dogs.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Best fun indestructible toy
Color: Crinkle Duck (Yellow), Size: Large
Truly indestructible no matter how much our oittie tries. She has owned it for three months works at destroying every day with no success. She carries it everywhere. Best purchase for chewer, more fun than the popular rubber heavy duty toy. Do not hesitate your pup will thank you for this fun distraction.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
My dog loves this toy!
Color: Bunny (Gray), Size: Large, Color: Bunny (Gray), Size: Large
High quality, big toy, perfect for a medium to large size dog. After a few months of serious chewing I had to buy another one, but well worth the money! Rocky loves it.
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Reviewed in the United States on June 11, 2026
★★★★★ 4
Great toy but if your dog is an aggressive chewer, please think twice.
Color: Crinkle Chicken (Brown), Size: Large
I received this on May 23rd and on June 8th, after playing with this thing every day, our recently acquired 36 lb dog finally ripped it open and got out all the plastic and the squeaky part. Lily Belle will miss you, chicken.
Lily loooooved this toy! She'd toss it in the air, chew on it, pull it with her teeth etc. but as much as she loved it, we won't replace it. It's just not durable enough for her.
If your dog is an aggressive chewer, you might want to try a different toy. I hate that this lasted just a smidge over two weeks because Lily seemed to truly enjoy this toy.
RIP, squeaky chicken!
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Reviewed in the United States on June 9, 2026
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