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.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 3283943733

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saadet atay Rosenthal
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★★★★★ 5
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Color: Black, Size: 3X-Large
True to size and very good material
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Reviewed in the United States on May 8, 2026
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Bryan
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★★★★★ 5
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Color: All White, Size: 3X-Large
I recently purchased the DEMEANOR All White men’s dress shirt, and I couldn’t be happier with it. The slim fit design gives a modern, tailored look without feeling restrictive, thanks to the stretch fabric. It’s wrinkle-free, which is a huge time saver — I can wear it straight out of the closet and still look crisp and professional. The material feels soft yet durable, and the long sleeves with button cuffs add a polished touch. I especially appreciate the pocket, which is both practical and stylish. Whether I’m wearing it for business meetings, formal events, or even casual nights out, it always looks sharp. For the price, this shirt is excellent value. It combines comfort, style, and convenience in one, and I’ll definitely be ordering more colors from DEMEANOR.
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Reviewed in the United States on December 15, 2025
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Amazon Customer
Lexington, US
★★★★★ 4
Es cómoda
Color: Black, Size: Medium
Todo está bien
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Reviewed in the United States on October 8, 2025
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Courtney S.
Pawtucket, US
★★★★★ 5
SOFT, COMFORTABLE, HIGH QUALITY
Color: Black, Size: 3X-Large
This is an AMAZING shirt, the value for the quality is ASTOUNDING. The material is soft, with a slight stretch, and the stitching is well done and high quality. I’m not wearing this for its intended use, but if I was in search of another dress shirt, I’d buy this one again in a HEARTBEAT.
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Reviewed in the United States on August 4, 2025
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Palatino
Lake Worth, US
★★★★★ 3
Good material, good price, but placket not my style
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