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  • 4 153 181 & 6 194 230 250 292 Chevy Cyl Valve Cover Polished Finned

4 153 181 & 6 194 230 250 292 Chevy Cyl Valve Cover Polished Finned

SKU:
$250.00
175 260 $175.00 - $260.00
Unavailable
per item

Fitment is for Chevy 194,230,250 and 292 and 4 cyl 153-181

Newly designed by 12Bolt. All Valve cover bolt holes are machined on a CNC and are extremely accurate.

The Quality of this finned valve cover will really gather attention to your engine.


1. Better looking

2. Cools your engine oil

3. Great seal with rigid cover

4. Best fit with custom parts

ARP head studs need clearance cut ( offered as a separate item)

Side holes are for bolting on Breather adaptors as sold separately.


Gasket is a rubber NOS OEM unit

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Newly designed by 12Bolt. All Valve cover bolt holes are machined on a CNC and are extremely accurate.
The Quality of this finned valve cover will really gather attention to your engine.

1. Better looking
2. Cools your engine oil
3. Great seal with rigid cover
4. Best fit with custom parts
 Notice the smooth clean look on the drivers side of the cover. All other covers are full of ripples to go around head bolt holes. This cover also offers more internal clearance than competitors units. 12Bolt roller rockers fit with no issues.
 It is offered as a unpolished, shot blasted or polished unit.
You will also notice the lack of a oil fill hole. There are 2 options here.
1. Machine a oil fill and PCV (25.00 each hole)
2. Add a bolt on the side oil fill and PCV (preffered). Also called a breather adaptor. This is the cleanest look to find on your inline 6. Still allows use of PCV .
    Link to breather adaptors Click picture. 

 Link Video of Valve cover comparison
Comparison shots of a Offenhauser and Clifford and 12Bolt. 
Dimension comparison:
Interior height      Offy 3.4"  Clifford    3.85"    12bolt 4.1"
Interior width 1/2" above gasket area  Offy 4"  Clifford   4.2"   12bolt 4.3"
 

  • Home
  • Store
    • Valve Covers
    • Side Covers
    • Performance Cylinder heads and Parts
    • Exhaust
    • Accessories
    • Alternator and Power Steering
    • NOS GM Inline 6 and V8 Parts
    • Turbo Related
    • Bolt In Lump Kits
    • Breather Adaptors
    • Pistons
    • Rods
    • Intakes
    • Mounts
    • Timing Covers
    • Engines
    • Camshafts
    • Shortblocks
    • Engine Stands
    • Harmonic Balancers
    • Bearings-Gaskets-Oil Pump
    • Torque Plate
    • Distributor Blueprinting
    • Carburetors
    • Air Cleaners Used
    • Vehicles
    • 12 Bolts and Parts
  • Inline 6 Articles
    • Me and My Turbo
    • Sissell Literature circa 1988
    • Sunset Chevy
    • 2 HP Per Cubic Inch
    • Cotton Perry
    • Six Abuse
    • Six In a Row Makes it GO
    • Soup of the Day
    • Stovebolts Storm Again
    • Stovebolt Storm Part 2
    • Straight Six Shooter
    • The Buzzin Half Dozen
    • Turbo Tornado
  • Lump Head information
    • General Head Information
    • Inline cylinder head flow
    • Bolt in lump installation instructions
  • Services
  • Gearing Calculator
  • Photos
    • 12 Bolt Pics
    • Inline 6 Pics
    • 292 Turbo EFI
    • Shop Tour
  • Videos
    • 12 Bolt
    • Inline 6
    • Customer Cars
  • Links
  • Tech Tips
  • Wanted
  • About Us
  • Contact
  • Inline Engine Build Ideas
  • Jacob's Journey