We have been serving San Antonio and South Texas for the last 46 years, providing precision engine machine work and engine parts. Through excellent customer service and attention to detail our goal at Duffin Engine Service is to exceed your expectations.
office manager and co-owner
Call Myrt today to set up your next job!
machinist, manage and co-owner
Do you have questions about a project? Contact Russell!
Scotty is align boring a block
Ross is machining valve seats
Jon assembling a cylinder head
Vic polishing a camshaft
Donald is surfacing a flywheel
Donald is balancing a crankshaft!
About Duffin EngineWe offer engine machine shop services for:
- automotive engines
- over the road diesel trucks engines
- industrial engines
- marine high performance and small engines
"Family owned and operated machine shop second to none."
"Amazing, knowledgeable, and affordable work by an awesome team of people!"
"They are always prompt and friendly with an incredible price point."
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