FULL SERVICE MACHINE SHOP ♦ Gas - Diesel - Marine
Welcome to Automotive Block and Head Welder — Jacksonville’s Trusted Full-Service Machine Shop
At Automotive Block and Head Welder, we’ve proudly served the Jacksonville, FL community for 50 years — as a family-owned and operated machine shop committed to quality, integrity, and customer satisfaction. Automotive Block and Head Welders
We know how important it is to find a dependable shop you can trust; that’s why we deliver precision work, honest advice, and fair pricing on every job. Whether you drive a daily commuter, a heavy-duty diesel rig, or a marine engine, we’ve got you covered.
Call us today at
(904) 384-1510 to get started or schedule a service.
Automotive Block and Head Welders
Our Services — Engineered for Performance & Reliability
From small gasoline engines to industrial or marine diesels, our experienced technicians provide a full suite of machining, welding, and rebuild services to keep your powertrain running strong.
Block Machining & Repair
- Hot-tank cleaning and crack detection (Magnaflux)
- Cylinder boring, honing, and sleeving
- Crankshaft grinding and polishing, rod resizing/bushing, bearing work
- Deck resurfacing, pressure testing, and structural welding for cracked or damaged blocks
Cylinder Head Services & Engine Rebuilds
- Full cylinder-head rebuilding: valve jobs, guide/seat installation, resurfacing, welding of cracked heads
- Pressure testing, resurfacing, and precision machining to restore sealing surfaces and prevent leaks/cooling issues
- Complete engine rebuilds (gas, diesel, marine, domestic & foreign) — cost-effective alternative to buying a new engine, with performance and reliability restored “just like new.”
Why Choose Us
- Five decades of hands-on experience — We’ve been serving Jacksonville and surrounding communities for 50 years.
- Full-service, versatile shop — Whether you have a small car, heavy-duty diesel, or marine engine, we handle a wide variety of makes and models.
- Precision, quality, and reliability — We use industry-standard machining, welding and testing methods to ensure your engine performs at its best.
- Family-owned and customer-focused — We take time to educate customers, explain the necessary work, and provide honest, fair pricing.
- Fast turnaround & attention to detail — Whether you need quick repairs or a full rebuild, we treat every engine with care and respect.
Hear From Our Customers
Visit Us or Get a Quote
Automotive Block and Head Welder
Address: 4066 Lenox Ave, Jacksonville, FL 32254
Phone: (904) 384-1510
Email: blockwelder@att.net
Hours: Monday–Friday, 8:00 AM – 5:00 PM. Saturday & Sunday — Closed.
Bring in your block, head, or full engine — or call ahead for a quote and personalized assessment. We’re here to help get you back on the road (or water) with confidence.
Your Engine Deserves the Best – Trust Jacksonville’s Originals
At Automotive Block and Head Welder, we understand engines down to the metal. If you want precision machine work, skilled welding, and a team who treats your vehicle like their own — you’ve landed in the right place.
Contact us today, and let’s bring your motor back to life.
