About Us

Brief History

ACE Performance Engines (Formerly Aircooled Engineering in the UK) was founded by Hot Rod and Aircooled VW & Porsche enthusiast Stefan Rossi. 

Prior to opening ACE back in 2010, Stefan had built his first Volkswagen engine at the age of 14. From there, he went on to work for some of the top VW engine shops in the UK & Canada. He also served in the British Army seeing combat on the front line in Afghanistan in 2009.

You might be thinking, why Aircooled and LS?!

Well..Stefan’s childhood love for VW & Porsche was also a love shared with Hot Rod’s & Drag racing and soon to follow, an obsession for the Chevy/GM LS application. His passion and skill for these two applications is the reason behind his strong reputation today.

The Engines

We have 18 years of experience building performance engines and every single one is always treated with meticulous accuracy and attention to detail.

All engines are fully balanced, blueprinted and built to highly detailed show standards in our purpose built, clean engine room.

We use only the best brand new parts available and have an in-house machine shop allowing us to have total control over all aspects of the build and to help eliminate extra time out-sourcing.

We post our builds on social media, each and every step of the way allowing our customers to see their parts are being accurately measured, machined and precisely placed in their engines. 

We pride ourselves on our scrupulous work and honest craftsmanship and work closely with our customers, enabling us to design custom engines specific to their requirements.

Current achievements of ACE built engines and vehicles

1966 VW Bus featured in VolksWorld Magazine with an ACE built 1915cc motor – 2015

1967 Yukon Yellow US Spec Vert VolksWorld Show ‘Outside choice’ award – 2015

 1968 Porsche 912 ‘Patina Irish Green’ – Hayburner Magazine cover car – 2016

1966 Chevy II Nova -Fastest Streetcar @ Hot Rod Drags, Shakespeare County Raceway – 2016

1966 Chevy II Nova, 8 Second street car Featured in Hayburner Magazine – 2017

1950 Split Window Bug – ‘Best Of Show’ at the VolksWorld Magazine show with an ACE built engine – 2017

1966 VW bus – Camper & Comercial cover car and full feature with ACE built 2276cc Turbo EFI engine – 2018