JavaScript Disabled

Your JavaScript appears to be disabled. JavaScript is necessary for various functions, such as order checkout, to operate on this web site. Please ensure that JavaScript is enabled.

Outdated Internet Browser Detected

Your web browser appears to be out of date. Soon you will not be able to create a secure connection to our web site using TLS 1.0. Please upgrade your browser from current version( ). Learn more about TLS.

Always Save the Most at Summit!
In-Store Pickup Location

Holley Cast Aluminum Timing Covers 21-152

Timing Cover, 1-Piece, Aluminum, Natural, Chevrolet, Small Block, With Crank Sensor, Each

Estimated Ship Date: Loading...Processing Today Would you rather pick it up? Select Location

Brand: Holley

Manufacturer's Part Number: 21-152

Part Type: Timing Covers

Product Line: Holley Cast Aluminum Timing Covers

Summit Racing Part Number: HLY-21-152

UPC: 090127018507

Cover Style: 1-piece

Cover Logo: Holley

Cover Material: Aluminum

Cover Color: Natural

Timing Pointer Included: No

Bolts/Studs Included: Yes

Gaskets Included: Yes

Quantity: Sold individually.

Notes: Includes provision for crank sensor. Will not clear double roller timing chain.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

Holley cast aluminum timing covers offer a durable upgrade to the plastic OEM timing chain covers on 1996-up Vortec small block Chevy engines. These aluminum covers feature timing indicators molded into the body and are available with a natural cast or satin black finish. A quality gasket and E-coated mounting hardware for added corrosion resistance are included.

Holley cast aluminum timing cover features include:

* 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
* Accommodates both stock and aftermarket water pumps


Questions & Answers Ask a Product Question

Will this work with gear drive?

Asked by LADARRIUS on July 27, 2018


Unfortunately it will not.

Holley Holley Answer - August 01, 2018

Answer This Question


Will this work with a non roller cam? (With a cam button)

Asked by NICK on April 17, 2018


Unfortunately no.

Holley Holley Answer - April 17, 2018

Answer This Question


Will this work with a double timing chain?

Asked by TOM on April 05, 2018


Unfortunately no. This will only work with stock width timing chains.

Holley Holley Answer - April 06, 2018

Answer This Question

+See All Questions (3)

Most Helpful Reviews Review This Product

1 Customer Reviews for Holley 21-152 - Holley Cast Aluminum Timing Covers

Average Customer Review

5 Star


4 Star


3 Star


2 Star


1 Star


+See All 1 Reviews

Better than stock.

Summit RacingSummit Racing Verified Purchase

I purchased a new GM L31-r crate motor and a GMP camshaft. I didnt like the idea of a plastic Timing Chain. Over so bought this. Very nice part and hardware tight seal looks great. What GM shoud have used.

0 of 0 found this review helpful.

report abuse

Report Abuse X

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.


Reviewer: from OH

Date: November 14, 2018

Ease of Installation

Some parts are not legal for use in California or other states with similar laws / regulations

Back To Results
Email this page
Sign Up for Email X