Engine Building

With our extensive experience in building a wide range of engines, we possess the expertise to engineer reliability and integrity into your classic motorcars, while preserving their originality whenever feasible.

Whether you require race tuning to enhance performance or a meticulous full concourse rebuild, we are fully capable of constructing an engine that aligns with your specific requirements.

Contact us

Customer Reviews

★★★★★
I had bought a ‘60s Lotus at auction and wanted a thorough inspection before driving it a public road. I found 20thCM by chance and could not have asked for a better service. Super thorough, super knowledgeable and super friendly. Thank you Billy and Jim.
Damian Brown
UK

★★★★★
Having had my TVR T350 laid up for 14 years, Billy and Jim undertook a full recommission, which was quite a tall order. Through their extensive knowledge and ability to find answers to problems they carried out a first class job returning a car that has been totally sorted mechanically and is an absolute pleasure to drive.
I can't rate too highly their professionalism and value of advice they gave during the process. They take a real interest in each project to ensure client satisfaction.
Peter Suttill
UK

★★★★★
Have just had my 1957 MGA expertly sorted by the fantastic guys (Billy & Jim) at C20 motorcars. Their depth of knowledge and attention to detail really makes the difference - Got a classic car? Try them ... you will not be disappointed! Thanks guys.
NeilW-547
UK

★★★★★
Very professional and a lovely clean workshop, both owners share a great passion for what they do and this is shown in the quality of work, Thanks guys.
Ricki Wake
UK