Mopar's B/RB Blocks

The B/RB Engines.

The Big Blocks

Displacement	Model Years	Bore	Stroke	Bore Spacing	Main Journal Diameter	Rod Journal Diameter	Connecting Rod Center to Center	Crankshaft Centerline to Deck
361	1958-1966	4.12	3.38	4.8	2.625	2.38	6.358	9.98
383	1961-1971	4.25	3.38	4.8	2.625	2.38	6.358	9.98
400	1972-1978	4.34	3.38	4.8	2.625	2.38	6.358	9.98
413	1959-1965	4.18	3.75	4.8	2.75	2.38	6.768	10.725
426	1963-1965	4.25	3.75	4.8	2.75	2.38	6.768	10.725
440	1966-1978	4.32	3.75	4.8	2.75	2.38	6.768	10.725

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