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The Tobin Arp TA-14 line boring machine is a compact yet capable line-boring setup designed to realign and bore main bearing tunnels, cam bearing passages, or other line bores in engine blocks — especially useful for smaller or vintage engines but flexible enough for many general engine-block repairs or rebuilds. As a used unit, a TA-14 offers shops, remanufacturers, or restoration/build shops a lower-cost option to perform in-house line-boring work instead of outsourcing, making it a practical choice for occasional to moderate volume block work.
Because of its relatively simple setup, portability (compared to large fixed-line-boring machines), and proven track record — many smaller shops or owners of older engines (classic cars, vintage blocks, Model-A / Model-T style restorations) continue to use the TA-14 for alignment, re-bore, or bearing-bore correction work.
| Specification | Value |
|---|---|
| Model | Tobin Arp TA-14 Line Boring Machine (Used) |
| Machine Type | Portable / fixture-based line boring machine for engine blocks |
| Typical Applications | Main bearing tunnels, cam-shaft bores, bearing line re-bores, vintage engine blocks, insert bearing conversions |
| Block Types Suitable | Smaller / older / vintage engine blocks — suitable for classic cars, tractors, small to medium-size engines (as per tooling & setup) |
| Setup Method | Block clamped on parallels (pan-rail supports or equivalent), alignment via studs/fixtures, not fixed bed — requires proper fixturing & setup precision |
| Boring Capability | Main bearing bores, cam tunnels, bearing housings — depends on cutter/bar tooling and block geometry |
| Tooling Compatibility | Standard boring bars and cutters for line-bore work; suitable for babbitt or insert-bearing conversions (if tooling/support allows) |
| Ideal For Shops That | Do rebuilds, restorations, vintage engines, low-volume line-bore jobs or insert bearing conversions without investing in large machinery |
| Limitations / Notes | Not heavy-duty industrial capacity — limited by bar rigidity, fixture strength, block support; setup and alignment are critical for accurate bores |
Tell us what you need, and we’ll send you a quick and accurate estimate — no hidden fees, no obligations.
We make equipment decisions easy. Clear answers, accurate recommendations, and support from people who know the industry.
When you reach out, you get answers quickly - not generic replies.
Backed by 50+ years in engine machining and reconditioning.
No surprises, no unclear timelines.
Your machine’s long-term performance is our priority.
Decades before today’s engine shops trusted our equipment, Tony was already deep in the craft — rebuilding motors, machining blocks, and pushing for better precision.
A local newspaper once featured him as a standout young machinist, noting his drive, attention to detail, and obsession with doing things the right way. That same passion would eventually shape our company’s values.
Today, that commitment lives on in every machine we sell, every customer we support, and every shop we help succeed.