The Edelbrock #4460 Signature Series Valve Covers are designed for Ford 260-289-302 (not Boss) and 351W V8 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.Installation Notes: • Chrome Finish • Overall Height: 3.7” • Will not clear 5.0L EFI intakes (except Victor #2945 and #3887) unless spacers are used • Tall Profile are 1-1/4" taller than stock, and clear most aluminum roller rockers and valvetrain components with moderate lift cams. Low Profile valve covers clear air-conditioning and alternator brackets. Signature Series Tall Profile valve covers will not clear stud girdles due to breather baffle interference. Check clearance prior to purchase.