PISTON WITH PIN +030 (SET OF 6)
Piston set with pin +.030" oversize
Set of 6 pieces for 6-cylinder engine
Complete oversize piston set +.030" (0.76 mm) for engine rebuild. These oversize pistons are used when reboring an engine block where the cylinders are enlarged by 0.030 inch over standard size. Each piston is supplied with matching piston pin.
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Oversize +.030" (0.76 mm) |
Type Cast steel, flat top |
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Set contents 6 pistons with pins |
Application 230 ci 6-cylinder engine |
Features
- Oversize +.030" for rebored cylinders
- Complete with piston pins
- Set of 6 pieces for complete 6-cylinder engine
- Suitable for engine rebuild and restoration
- Flat top piston crown
★ Rebuild component for restoring engine blocks with cylinder reboring. During an engine rebuild, cylinders are typically rebored to.020",.030",.040" or.060" oversize depending on cylinder wear.
Application
For rebuilding 230 cubic inch (3.8L) inline six flathead engines. Standard bore 3 1/4 inch (82.55 mm), at.030" oversize this becomes 3.280 inch (83.31 mm)..030" oversize is a common rebuild size for moderate cylinder wear.
Installation notes
Engine block must be professionally rebored to exact.030" oversize. Piston-to-cylinder clearance must be correctly measured and set according to manufacturer specifications. Piston pins must be correctly installed, type may vary between semi-floating and full-floating depending on connecting rod design. Entrust assembly to an experienced engine rebuilder.
Compatibility
Important: oversize pistons can ONLY be used in rebored engine blocks. Not compatible with standard bore. Check whether the engine block is suitable for.030" reboring — with excessive wear or previously rebored blocks, a larger oversize (.040" or.060") or sleeving may be necessary.
Historical context
Oversize pistons were standard rebuild parts during and after WWII for extending the service life of military vehicle engines..030" oversize was often the first rebuild step with normal cylinder wear.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
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This part is intended for the restoration of historic military vehicles. Fitting, aligning, deburring or reworking is part of that work and is inherent to the nature of these goods. Dimensional variation also exists between original vehicles.
Installation requires technical knowledge of the vehicle. Unsure whether this part suits your version? Ask us before purchase at info@willys.be.
This part fits:
| Model | Years |
|---|---|
| Dodge | |
| Alle Dodge WC / M-serie | 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968 |
📐 Diagrams & technical drawings
From the original Technical Manual TM 9-808 — Technical Manual — only for Dodge ¾-ton 4×4 (WC series)










