The TODA Piston Top Gauge is a tool favored by engine tuners, allowing you to accurately check the piston top by attaching a dial gauge to the cylinder head plug hole. Accurately measuring the piston top is fundamental to valve timing. This is a particularly useful tool for tuners experiencing an engine overhaul for the first time. Conventional types of dial gauges, which attach to a general-purpose magnetic base, require an extension rod to be attached to the tip of the dial gauge when installed on modern engines with narrow and deep cylinder heads. This makes the rod prone to bending and lateral displacement of the tip, making it very difficult to determine the position of the piston top.
Features
- With a 20mm long stroke gauge, it can accommodate both convex and concave pistons.
- Two types are available to match the center plug diameters of 14mm and 12mm.
(Not compatible with engines where the spark plug hole is not perpendicular to the piston, such as OHV engines.)
We ship to the United States and 150 other countries.
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Toda Racing was founded in Okayama in February 1971 by Yukio Toda as a racing maintenance company. It won the Suzuka FJ1300 championship in 1978 and the All Japan Formula 3 championship in 1987, and it went on to build its own engines for Japanese Formula 3.
Toda is best known for its Honda engine work, and for parts that come from it: camshafts, valve springs, pistons, connecting rods, flywheels, throttle bodies and complete engines for Honda's VTEC engines, along with parts for Toyota and other makes.
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About NENGUN
Since the year 2000, NENGUN has supplied over 500,000 parts direct from Fukuoka, Japan to 170 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.









