Tech - Engine Displacement

Bughaus Tech Library

Engine Displacement Charts

Engine displacement is calculated by the formula bore x bore x stroke x .0031416. Bore is your piston size and stroke is your crankshaft size. VW would round engines sizes up to the next 100cm mark, so both the 1131cc 25hp and 1192cc 36hp (and the 1192cc 40hp for that matter) were referred to as 1200cc engines, 1285cc was 1300cc, 1493cc was 1500cc, and 1585cc was 1600cc. Aftermarket sizes are more exact. Original stock sizes are highlighted in blue.

Engine Displacement Chart - Type 1

Bore
Stroke		70	75	77	83	85.5	87	88	90.5	92	94
	64	985	1131	1192	1385	1470	1522	1557	1647	1702	1777
	69	1062	1219	1285	1493	1585	1641	1679	1776	1835	1915
	74	1139	1308	1378	1602	1699	1760	1800	1904	1968	2054
	76			1415	1644	1745	1806	1848	1956	2021	2110
	78	1201	1378	1453	1688	1791	1855	1898	2007	2074	2165
	82				1775	1883	1950	1995	2110	2180	2276
	84	1293	1484	1565	1818	1929	1997	2044	2161	2234	2332
	86	1324	1520	1602	1861	1975	2045	2092	2213	2287	2387
	88	1355	1555	1639	1905	2021	2093	2141	2264	2340	2443
	90	1385	1590	1676	1948	2067	2140	2190	2316	2393	2498

Engine Displacement Chart - Type 4

Bore
Stroke		90	93	94	96	103	104
	66	1679	1793	1832	1911	2200	2243
	71	1807	1929	1971	2056	2366	2411
	78	1985	2119	2165	2258	2600	2650
	80	2036	2174	2221	2316	2666	2718
	82	2087	2228	2276	2374	2733	2786
	84	2138	2282	2332	2432	2800	2854

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