F2 Performance Supply 7" Billet Crank Pulley | Air-Cooled VW Type 1 | 6061 Anodized, Laser-Etched Timing Marks
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F2 Performance Supply 7" Billet Crank Pulley | Air-Cooled VW Type 1
The F2 Performance Supply 7-inch billet crank pulley fits air-cooled VW Type 1 engines. It is 6061-T6511 aluminum, black anodized, on a heat-treated 4340 alloy steel hub, with 360 degrees of laser-etched timing marks and the F2 logo at TDC. Choose a factory hub or a sand-sealed hub, with ARP bolts in black oxide or stainless (FF-70010BL, FF-70010SS, FF-70020BL, FF-70020SS).
Part numbers: FF-70010BL · FF-70010SS · FF-70020BL · FF-70020SS · seal for sand-sealed version: SKF #17231
Fitment
| Years | Vehicle | Notes |
|---|---|---|
| Not stated | Air-cooled VW Type 1 engine (Beetle, Bus, Karmann Ghia) | Factory hub: direct replacement for a stock pulley |
| Not stated | Type 1 engine, off-road or dusty use | Sand-sealed hub: engine case must be machined for the SKF #17231 seal |
Specifications
| Spec | Detail |
|---|---|
| Diameter | 7 inches |
| Pulley material | 6061-T6511 aluminum, black anodized |
| Hub material | 4340 heat-treated alloy steel |
| Timing marks | 360-degree laser etched, F2 logo at TDC |
| Hardware | ARP bolts, black oxide or stainless steel |
| Hub styles | Factory or sand sealed |
| Seal (sand-sealed version) | SKF #17231, case machining required, seal not included |
| Brand | F2 Performance Supply |
Versions and Part Numbers
| Part number | Hub | ARP bolt finish |
|---|---|---|
| FF-70010BL | Factory | Black Oxide |
| FF-70010SS | Factory | Stainless Steel |
| FF-70020BL | Sand Sealed | Black Oxide |
| FF-70020SS | Sand Sealed | Stainless Steel |
What's Included
- One 7" billet crank pulley with the hub version you select
- ARP bolts in the finish you select
Not Included
- SKF #17231 seal for the sand-sealed version
- Engine case machining for the sand-sealed version
Why It Matters
This pulley is built the way the classic Auto-Craft pulleys were, with the materials and machining available now. The 7" size follows that pattern, and a stock-diameter pulley keeps accessory speeds where the factory intended.
With timing marks all the way around the edge there is no guessing, no taping a protractor to the case and no squinting at a single notch, so setting timing and degreeing a cam both get faster.
Installation Notes
The factory hub drops in as a direct replacement for a stock pulley.
Important: the sand-sealed version requires additional machining to the engine case to accept the #17231 SKF seal. This is not a bolt-on; have it done by a machinist familiar with air-cooled VW cases, and plan for that work before you order.
Questions Before You Buy?
We build and sell air-cooled VW parts out of Orange, California. If you are unsure whether your case is already cut for a sand seal, contact us before ordering and we can talk you through how to check.
Frequently Asked Questions
Which F2 crank pulley hub do I need?
Factory hub for a normal street engine; it replaces the stock pulley directly. Sand sealed if you run dust, sand or off-road, and are prepared to have the case machined.
What machining does the sand-sealed F2 pulley need?
The case has to be cut to accept the #17231 SKF seal. This is not a bolt-on; have it done by a machinist familiar with air-cooled VW cases.
Is the SKF seal included with the sand-sealed pulley?
No. The listing does not include the seal; source the #17231 alongside the machining work.
Does the ARP bolt finish change anything mechanically?
No. Black oxide and stainless ARP bolts are a cosmetic choice at the same price.
Why is the F2 billet crank pulley 7 inches?
A stock-diameter pulley keeps accessory speeds where the factory intended. The 7" size follows the classic Auto-Craft pattern this pulley takes its inspiration from.
Are the F2 pulley timing marks readable with the engine in the car?
They run the full 360 degrees of the pulley edge with the F2 logo at TDC, so there is a mark in view regardless of where the engine stops.
Explore Related Categories
Browse Engine for pulleys, hubs, bolts and the rest of the front-of-engine hardware.
⚠ WARNING (California Proposition 65): This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov.
