Holley's GM Muscle Series small block Chevy center bolt valve covers offer a clean, modern look with raised Chevrolet Bowtie logos. Designed for GM ZZ6 engines, they fit all small block Chevy applications with center bolt style cylinder heads, including Vortec, ZZ4, ZZ5, and ZZ6.
Specifications:
- Brand: Holley
- Category: Engine
- Application: GM SBC ZZ6/Vortec
- Bolt Pattern: Center Bolt
- Construction: Die Cast Aluminum
- Finish: Black
- Logo: Chevrolet with Bowtie
- Height: Standard
- Baffle Included: Yes
- Grommet(s) Included: Yes (oil fill / PCV)
- Hardware Included: Yes (polished mounting hardware)
- Gaskets Included: No
- Product Type: Valve Cover
- Style: SBC Center Bolt
- Sub Category: Cylinder Block Components
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 241-292
Includes mounting bolts and grommets for installation onto a ZZ6/Vortec SBC head; gaskets are not included. Caution: engines with non-standard valve train components (high-lift camshaft, roller-tip or higher-ratio rocker arms, stud girdles, etc.) may have insufficient clearance.
FAQ
Which engines fit this valve cover?
It's designed for GM ZZ6 engines and fits all small block Chevy applications with center bolt style cylinder heads, including Vortec, ZZ4, ZZ5, and ZZ6.
Are mounting hardware and grommets included?
Yes, polished mounting hardware and oil fill/PCV grommets are included; gaskets are not.
Is there a clearance concern with aftermarket valve train parts?
Yes — engines with non-standard components like a high-lift camshaft, roller-tip rocker arms, higher lift ratio rocker arms, or stud girdles may have insufficient clearance.
