Skip to product information
12_3b975851-10eb-445d-8bcb-f2fee9d16ad6 - Northline Parts

Polished Valve Cover Breather PCV Valve Air Cleaner For 58-86 SBC Chevy 350 400

Alligator_819_x_200_px - Northline Parts

The Aftermarket Parts Specialists

$290.39
Sale price  $290.39 Regular price 

In Stock

Ships Nationwide in 2–4 business days.

Questions? We're here to help!

Talk with a parts expert today

Call us

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Polished Valve Cover Breather, PCV Valve & Air Cleaner Set for 58-86 SBC Chevy 350 400

Upgrade your engine bay with this high-quality aftermarket polished valve cover breather and PCV valve kit. Specifically designed for Small Block Chevy engines, this set provides essential crankcase ventilation while giving your vehicle a clean, custom look. This is a premium aftermarket replacement part engineered to offer the same fit and function as original equipment, making it an ideal choice for restoration or performance maintenance on your classic 350 or 400 engine.

Key Features & Benefits

  • High-shine polished finish for a professional, show-ready appearance.
  • Improves engine longevity by ensuring proper crankcase pressure relief.
  • Complete set includes both the breather and the PCV valve.
  • Direct fit for standard 1.25-inch valve cover holes.
  • Durable construction designed for high-heat environments and long-term use.

Compatible Models

  • Small Block Chevy (SBC) 283, 305, 307, 327, 350, 400
  • Fits model years from 1958 to 1986

Product Specifications

  • Part Type: Valve Cover Breather & PCV Valve Kit
  • Fitment Type: Aftermarket
  • Finish: Polished Chrome-Style
  • Mounting Hole Size: 1.25 Inches

Frequently Asked Questions

Is this an OEM part?
No, this is a premium aftermarket part designed for performance and aesthetic improvement, not manufactured by the original equipment manufacturer.

How do I confirm compatibility?
Please ensure your engine is a Small Block Chevy manufactured between 1958 and 1986 and that your valve covers feature the standard 1.25-inch push-in style breather holes.


Important: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.

Need Any Help?

Work 1-on-1 With An Expert For:

  • The Right Part Selection
  • Our Best Pricing Tiers
  • Priority Customer Support
  • White Glove Installations
  • Flexible Payment Options

Service was professional and easy to work with. They kept me updated on my order and recommended a different part when the one I originally picked wasn’t going to work. Everything showed up as expected and the process was smooth overall.

- Customer, Chris D.

Complete This Form

You may also like

Keywords (Used as search references only) View IP policy.