Two expansive new GTHO bibles have been announced by historian Ross Vasse, covering every Cleveland-powered XW GTHO Falcon ever built.

Following on from last year’s Phase III Register, the 1970 Ford Falcon XW GTHO Phase I ½ and GTHO Phase II Registers chronicle the production, life, and in some cases death of each homologation special.

If you’re unfamiliar with the terminology, Ford dropped 351 Windsor power late in the original XW GTHO’s run, replacing the donk with a hydraulic-cam 351 Cleveland. These cars ran a 600 Holley carb and wide-ratio gearbox, earning the unofficial ‘Phase 1.5’ moniker. Just 110 were assembled before the full-fat Phase II arrived.

The 287 Phase IIs built received an angrier solid-cam Clevo, Holley 750, close-ratio ‘box, and a raft of further driveline and handling upgrades.

These GTHO Registers are packed with never-before-seen photos, new information, and full factory production records for every last car, thanks to Ross’s 30-year GTHO research crusade. The books are officially licensed by Ford Motor Company, and feature forewords by Bathurst GTHO heroes Allan Moffat and Fred Gibson.

Like the Phase III Register, which sold out rapidly, stocks of the new books aren’t expected to last long. All 351 individually numbered Black Edition copies of each book are already spoken for, with the regular Blue Edition not far behind.

Preorders for both books are open now on the GTHO Register website. Shipping is set to kick off from November 30, just in time for christmas gifting. They’re also a fantastic companion for auction viewing in today’s GTHO-crazy world, offering up all the info you need as you watch the bids rise.

Ross plans to complete the set in 2023 with a full GTHO Phase I Register, so keep your eyes peeled!