JB's Auto Machine

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JB's Auto Machine JB’s Auto Machine has been Rosedale, Maryland’s engine experts since 1977! Call JB's Auto Machine today for all of your engine needs!
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Family-owned and operated by the same family since the day the shop was founded, we are heavily invested in serving our community and beyond. Our long-term success is thanks to our belief that our customers are members of our family, and they will always be treated that way. We work to provide all those that come to our shop with the best customer service and expert work around. Specializing in custom, stock, antique, marine, industrial, high-performance engines, and more, our team will ensure you’re getting optimal results from any engine.

Built stronger. Running cleaner. 💥 Here are some of our latest customer rides with newly reworked engines — check ’em ou...
10/23/2026

Built stronger. Running cleaner. 💥 Here are some of our latest customer rides with newly reworked engines — check ’em out!

Working hard to meet all your engine needs. From cylinder head, block and crank work, to balancing, resurfacing, pressu...
10/23/2026

Working hard to meet all your engine needs. From cylinder head, block and crank work, to balancing, resurfacing, pressure testing, magnafluxing, and more! We also do partial and total engine rebuilding! Stock, performance, custom, antique, and marine. No appointments needed! Call 410-686-6530.

JB’s Auto Machine specializes in custom engine designs that reflect your desired style, performance, and sound. Contact ...
10/22/2026

JB’s Auto Machine specializes in custom engine designs that reflect your desired style, performance, and sound. Contact us today (410) 686-6530.
💻 https://www.jbsautomachine.com/

Boat owner states this happened while idling out of the slip!😁
10/21/2026

Boat owner states this happened while idling out of the slip!😁

We offer many professional machining services for crankshafts, including magnafluxing, grinding, polishing, and balancin...
10/21/2026

We offer many professional machining services for crankshafts, including magnafluxing, grinding, polishing, and balancing! We can also balance your rotating assembly! Call us at 410-686-6530.

JB’s Auto Machine can help you design an engine with a unique style that is tailored to the look, performance, and sound...
10/20/2026

JB’s Auto Machine can help you design an engine with a unique style that is tailored to the look, performance, and sound you want.
➡ https://www.jbsautomachine.com/

Throwback to these engine rebuilds - a 302 Boss and an 8.1 Volvo Marine!📍 9701 Philadelphia Rd, Rosedale, MD 21237
10/19/2026

Throwback to these engine rebuilds - a 302 Boss and an 8.1 Volvo Marine!
📍 9701 Philadelphia Rd, Rosedale, MD 21237

JB’s Auto would like to thank our friends, customers and fellow car enthusiasts who made an attempt to attend our Wings ...
10/17/2026

JB’s Auto would like to thank our friends, customers and fellow car enthusiasts who made an attempt to attend our Wings & Wheels Car Show. We truly appreciate all your support and effort to help make our fundraiser a success. The field conditions were not the best and cancelling was unavoidable. Again, thank you for your time, commitment and understanding!

10/17/2026

CAR SHOW CANCELLED AT ESSEX SKYPARK!

10/16/2026

Today’s rebuild - This 451 cu. in. Mopar has a 400 low deck block with a steel 440 crank. The main journals were ground to fit the 400 block. ARP bolts were installed in 440 connecting rods, which were also bushed to a .990 pin and the beams were polished. SRP pistons were installed to make 10.3 to 1 compression. An Erson hydraulic roller camshaft was installed. We used 440 Source aluminum heads and topped it off with a cross ram intake. It’s going in a 1960 Plymouth.

Address

9701 Philadelphia Road
Rosedale, MD
21237

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 8pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

(410) 686-6530

Website

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