Holley Cast Aluminum Timing Chain Cover - 21-150
SKU: 3283943733

Holley Cast Aluminum Timing Chain Cover - 21-150

Sale price$85.64 Regular price$95.15
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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.
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  • Delivery to the USA:
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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
SKU: 3283943733

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Suzanne Raif
Port Orchard, US
★★★★★ 1
Pretty but leather is mildewed.
I read the reviews but took a chance that the one I received would not smell mildewed. Oh my!! It stinks to high heaven!!! And it is too small for my wrist…another chance I took. Instead of returning it, I’m going to try and replicate it using the watch and dangles with ribbon and cords. It was wrapped very tightly in bubble wrap. Perhaps the leather would not have mildewed if it had been able to breathe. Boy! Does it stink!!!!!
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Reviewed in the United States on September 29, 2025
O
Verified Purchase
Oceanmotion
Dallas, US
★★★★★ 3
Snap closure watch.
Not the best quality or materials but remember, it’s extremely inexpensive.
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Reviewed in the United States on September 8, 2025
T
The Bowtie Artist
Draper, US
★★★★★ 5
Nice accessory for anyone to wear, goes well with any style
Durable material makes it easy to slip onto any wrist (plus, adjustable strap, so there's that too). The fact that the watch actually WORKS is an added point, considering most of these out there have the clock as a graphical enhancement rather than an actual working point to the piece. The title of the item says for girls, but whoever you are out there, wear it despite what it says. These sorts of accessories are multi-person usage. It looks cool with any outfit design, too.
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Reviewed in the United States on November 26, 2023
G
Verified Purchase
Genevieve
West Palm Beach, US
★★★★★ 4
Cute! Poor battery.
This is super super cute. I love the layered bangle look and the hanging charm and the dainty little watchface. It's very comfortable to wear. I knock it down a star because the battery it came with only lasted 3 months - I know it was an inexpensive watch, but I was disappointed with the battery life.
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Reviewed in the United States on May 23, 2024
K
Verified Purchase
Kirsten
Lowell, US
★★★★★ 3
Cute, but too small
It's cute, but kinda cheaply made, and it doesn't fit my wrists. So, I gave them to my niece. She loves them. (This one and a similar one that I bought)
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Reviewed in the United States on March 31, 2025

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