| Diagram | Fig. 1 — CRANKSHAFT, PISTON AND TIMING GEARS · ref 11 |
| Subsystem | engine bottom |
| Listed in parts books | 1963–1964 |
PISTON COMPLETE, C.R. 7 : 1
A complete 7:1 compression-ratio piston listed in the crankshaft, piston and timing gears section of the parts book.
CP141 is a complete piston with a 7:1 compression ratio, listed in the crankshaft, piston and timing gears section of the parts book. The CP prefix points to the piston-and-ring makers of the era (Hepolite/Wellworthy commonly used that style of code), and "complete" means it comes assembled with rings and the parts needed to go straight into the bore rather than just a bare casting.
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This one shows up in catalog listings from 1963 to 1964, so it's tied to that window of production. Compression ratio matters here — 7:1 is a lower-compression piston, so before you order make sure it matches what your engine actually needs rather than swapping in whatever's on the shelf.
We don't have more detail on this one beyond what's in the parts book. If you're not sure this is the right piston for your motor, give us a call and we'll go over the fitment with you before you order.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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