Edelbrock · New
Edelbrock Valve Cover Signature Series Buick 1977 and Later 3 8L and 4 1L V6 Chrome
MPN 4486 · Store SKU ede4486
Supplier stock checked 11/7/2026, 6:28:03 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
The Edelbrock #4486 Signature Series Valve Covers are designed for Buick 3.8L & 4.1L V6 '77 & later applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately. Edelbrock Signature Series Valve Covers for Buick 3.8L & 4.1L V6 '77 & later. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. Signature Series Valve Covers for Buick 3.8L & 4.1L V6 77 & Later Signature Series Valve Covers for Buick 3.8L/4.1L V6 77/Later Signature Series Valve Cover
Manufacturer fitment & guides
- Chevrolet:V6:231 (3.7L)
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y
