The TODA Racing K20A I-Section Strengthened Connecting Rod, part 13210-K20-000, is a serious bottom-end upgrade for the standard-stroke 2.0L K20A.
TODA lists it specifically for Civic Type R, Integra Type R and Accord Euro R applications.
What TODA is actually offering
The 13210-K20-000 is:
- I-section design
- Chrome-moly construction
- Fully balanced
- Fully floating small-end arrangement with bush
- 139.0 mm center-to-center rod length
- 22 mm piston-pin diameter
- Approximately 503 g per rod
- Supplied as 4 connecting rods for the four-cylinder K20A.
The important point is that this is not the connecting rod for TODA’s 2150 KIT. The 13210-K20-000 is for the 86 mm standard-stroke K20A configuration.
TODA specifies a separate 138 mm rod, part 13210-K20-101-I, for its 90.7 mm-stroke 2150 configuration.
**Why the rod matters
Think of the K20 connecting rod as the link between:
combustion pressure → piston → connecting rod → crankshaft
At high rpm and cylinder pressure, the rod experiences both:
compression loading
and
tensile/inertial loading
So the objective isn’t simply “stronger metal.” A good performance rod needs the appropriate combination of:
section geometry + material + machining + balancing + piston-pin interface + fastener integrity.
That’s why TODA describes this rod as an I-section chrome-moly, fully balanced and fully floating design.
Where it fits in a K20 build
For a naturally aspirated high-rpm K20, the rod is one component of the bottom-end equation:
TODA rod
↓
forged piston
↓
crankshaft
↓
rod bearings / clearances
↓
oil supply
↓
balancing
↓
ECU calibration
The rod by itself doesn’t establish a safe horsepower or rpm limit. The entire rotating assembly has to be engineered around the intended application.
TODA itself offers several different K20 bottom-end approaches, including high-compression forged pistons, the 2150 kit, and an 84-mm short-stroke package.
Its 84-mm package specifically combines forged pistons, an I-section chrome-moly rod and a lightweight crankshaft to pursue faster response and higher-rpm capability.
For your K20A/Type-R-style project, the interesting comparison is actually:
OEM K20A rod vs TODA 13210-K20-000 vs TODA 2150 I-section rod — because they represent three different bottom-end philosophies.
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