Author Archives: dfadmin

Narrowed IRS Trailing Arms

We build a Narrowed IRS Rear Trailing Arm package for all VW Type 1, and VWs converted to Type 1 IRS (early bus, bug, ghia, type 3 and thing). Narrowed 30mm per side, allowing the use of wider wheels and tire packages, while maintaining stock mounting locations. Fits either drum or disc brakes, and uses a shortened axle which can be provided at an additional cost. Powder coated in your color choice starting at $695 exchange.

Porsche Valve Train Package

One of our more recent projects was a Valve Train Package for late 356 and early 912 Porsche, which included designing a valve guide from modern materials, sized to replace the 10mm valves with 8mm valves, allowing us to use a modern Beehive style valve spring and ultra light weight retainer.

Cylinder Head Rebuilding

We offer cylinder head rebuilding, performance cylinder head development, cylinder head flow testing, block machining, block tuning, engine dyno testing, cylinder boring, connecting rod rebuilding, partial engine assembly, etc.

Partial Equipment List

  • Superflow 600 Flow Bench
  • Superflow 802 (and coming soon: 1025) Engine Dynomometer
  • Sunnen Rod Shop and Honing Station
  • BERCO Machining Center
  • Stuska Small Engine Dyno
  • ROTTLER single insert CBN block and cylinder head surfacer
  • SERDI live center seat and guide machine
  • DCM TECH dead pilot seat and guide machine

Aftermarket Performance Products

Scat Crankshafts

: Billet Crankshafts and Chromoly Connecting Rods.


CB PERFORMANCECB Performance : Crankshafts, CNC Ported Cylinder Heads, Super Case, Weber Carburators.
Weddle IndustriesWeddle Industries : HVI Transmissions and Parts, OEM VW and aftermarket VW Transmission Parts.
ARPARP : Automotive Racing Products – Engine Fasteners
COMETIC : Head Gaskets
: MotorSports Tulsa – Billet Engine Accessories for the VW
 : Race Fuels
AMSOILAMSOIL : Engine Oils and Bypass Filter Kits


As VW as it gets.

…If Volkswagen is your type of course. At Herbert Performance, we have VW in our blood. VW performance engines, street racing and off road suspension, fully custom projects, or simply as close to original stock as you can get, the choice is yours. We speak Volkswagen.

The Right Products for the Right Application.
Our knowledge and experience gives you an advantage. HPC will help you where needed, selling you appropriate, compatible products to meet your particular performance requirements.

We speak Volkswagen