Old Anvil Speed Builds Restomod 1966 Mustang
A Fast Eddie's orphan Mustang receives a 427 engine and custom metalwork before a planned SEMA display.
Updated on Nov. 2, 2026 in Car Culture
Old Anvil Speed completed a restomod of an orphaned 1966 Ford Mustang Fastback fitted with a 427 engine. The shop plans to display the car at the SEMA show.
Why it matters
The project shows how shops revive abandoned classic builds left in limbo after an owner's death or a stalled relationship. It also reflects the continued demand for high-end restomods in the U.S. collector car market.
The build centers on a 427 engine fitted to a 1966 Ford Mustang Fastback, with roughly two years of custom metalworking completed before the high-end paint was applied. Final output figures and total build cost were not disclosed.
The players
Old Anvil Speed
A custom automotive shop founded by Paul and Jenna Bosserman after they took over Fast Eddie's, which performed the restomod on the Mustang.
Paul and Jenna Bosserman
The couple who took over Fast Eddie's shop in 2018 and founded Old Anvil Speed.
Phil and Michelle Wirthgen
The couple who bought the Mustang and became its new owners for the restomod project.
The details
Paul and Jenna Bosserman, who took over Fast Eddie's shop in 2018 and founded Old Anvil Speed, inherited the Mustang as one of the shop's builds. The team stripped the car, removed the shock towers to make room for the powerplant, moved the battery to the interior and completed extensive custom metalwork before refinishing it.
Timeline
2018: Paul and Jenna Bosserman take over Fast Eddie's shop and start Old Anvil Speed.
Late 2022: The Mustang returns to the Old Anvil Speed shop after its owner passed away.
Late 2024: The restart of the project aims for completion within one to two years.
Roadmap
The Mustang's planned display at SEMA places the build within the show's long-running role as a showcase for custom and restomod work. It reflects a broader pattern of independent shops taking on abandoned classics and presenting them to the aftermarket industry.
For enthusiasts, the project illustrates that abandoned classics can be restored to a finished state through custom metalwork and engine swaps. Buyers considering a similar build should expect a lengthy timeline and significant custom fabrication work.
The takeaway
A stalled project with no owner or clear path forward can still reach completion when a skilled shop takes it on. Owners weighing a restomod should plan for extensive metalwork and a multi-year timeline.
Further reading
Explore more Car Culture stories covering custom builds and restomods like this one.
