Cylinder						Engine		Thou		Combustion chamber size in ccs
Dia	rad	pir2	stroke	cyl vol	eng cap	cc		oversize		37	38	39	40	41	42	43
3.159	1.5795	7.840864	3.5	27.44302	109.7721	1798.842		Std		9.99	9.82	9.65	9.49	9.33	9.18	9.03
3.17	1.585	7.895564	3.5	27.63448	110.5379	1811.392		10		10.06	9.88	9.71	9.54	9.39	9.23	9.09
3.18	1.59	7.945457	3.5	27.8091	111.2364	1822.838		20		10.11	9.94	9.76	9.60	9.44	9.29	9.14
3.19	1.595	7.995507	3.5	27.98428	111.9371	1834.32		30		10.17	9.99	9.82	9.65	9.49	9.34	9.19
3.2	1.6	8.045714	3.5	28.16	112.64	1845.839		40		10.23	10.05	9.87	9.71	9.55	9.39	9.24
3.21	1.605	8.096079	3.5	28.33628	113.3451	1857.393		50		10.29	10.10	9.93	9.76	9.60	9.44	9.29
3.22	1.61	8.1466	3.5	28.5131	114.0524	1868.984		60		10.34	10.16	9.99	9.82	9.65	9.50	9.34
3.23	1.615	8.197279	3.5	28.69048	114.7619	1880.611		70		10.40	10.22	10.04	9.87	9.71	9.55	9.40
3.24	1.62	8.248114	3.5	28.8684	115.4736	1892.273		80		10.46	10.28	10.10	9.93	9.76	9.60	9.45
3.25	1.625	8.299107	3.5	29.04688	116.1875	1903.972		90		10.52	10.33	10.15	9.98	9.81	9.65	9.50
3.26	1.63	8.350257	3.5	29.2259	116.9036	1915.707		100		10.58	10.39	10.21	10.04	9.87	9.71	9.55
3.27	1.635	8.401564	3.5	29.40548	117.6219	1927.478		110		10.64	10.45	10.27	10.09	9.92	9.76	9.60
3.277	1.6385	8.437573	3.5	29.5315	118.126	1935.739		117		10.68	10.49	10.31	10.13	9.96	9.80	9.64		Hepolite flat top at 20 thou down
3.28	1.64	8.453029	3.5	29.5856	118.3424	1939.284		120		10.70	10.51	10.32	10.15	9.98	9.81	9.66
3.287	1.6435	8.489147	3.5	29.71201	118.8481	1947.571		127		10.74	10.55	10.36	10.19	10.02	9.85	9.69		JE forged
3.29	1.645	8.50465	3.5	29.76628	119.0651	1951.127		130		10.76	10.56	10.38	10.20	10.03	9.87	9.71		County CP717
3.29	1.645	8.50465	3.52	29.93637	119.7455	1962.277		127		10.81	10.62	10.43	10.26	10.08	9.92	9.76		County CP717
1500	MGA									43.5
2.935	1.4675	6.76832	3.5	23.68912	94.75648	1552.78		60		8.76
1600	MGA									43.5
3.0289	1.514449	7.208316	3.5	25.22911	100.9164	1653.724		60		9.27
1622	MGA									43.5
3.06	1.53	7.357114	3.5	25.7499	102.9996	1687.861		60		9.44
A series
2.78	1.39	6.072314	3.2	19.43141	77.72562	1273.695		Std
2.8	1.4	6.16	3.2	19.712	78.848	1292.087		20
2.81	1.405	6.204079	3.2	19.85305	79.41221	1301.333		30
2.82	1.41	6.248314	3.2	19.99461	79.97842	1310.612		40
2.84	1.42	6.337257	3.2	20.27922	81.11689	1329.268		60
1500 Midget
2.9	1.45	6.607857	3.445	22.76407	91.05627	1492.145		std
2.92	1.46	6.699314	3.445	23.07914	92.31655	1512.797		20
2.93	1.465	6.745279	3.445	23.23748	92.94994	1523.177		30
2.94	1.47	6.7914	3.445	23.39637	93.58549	1533.591		40
2.96	1.48	6.884114	3.445	23.71577	94.86309	1554.528		60