| Diagram | Fig. 1 — CRANKSHAFT AND CONNECTING RODS · ref 13 |
| Subsystem | engine bottom |
| Listed in parts books | 1964–1965 |
PISTON COMPLETE 8-5:1C.R.
A complete 8.5:1 compression piston assembly listed in the crankshaft and connecting rods section of the parts book.
CP200 is a complete piston, listed in the parts book with an 8.5:1 compression ratio. The CP prefix is the old Hepolite/Wellworthy style numbering used for pistons and related components, and this one shows up in the catalog under the crankshaft and connecting rods section, which is where piston assemblies get listed alongside the bottom-end parts they work with.
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Being sold complete means it comes assembled with rings and the wrist pin, ready to go into a bore rather than needing rings sourced separately. The compression ratio stamped into the description tells you what you're getting on the combustion side, which matters if you're trying to match what's already in your engine or deciding whether to go up or down in compression on a rebuild.
Our catalog record ties this to appearances from 1964 to 1965 but doesn't spell out which specific model or engine it was fitted to. Bore size isn't given either, so before you order, get us your cylinder measurements or your old piston's markings and we'll confirm this is the right one.
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