Head casting numbers:
		Valve size:
Year(s)	Casting number	Intake	Exhaust	Notes:
1961	3795586	2.06	1.72
1962	3814690	2.19	1.72
1963	3814690	2.19	1.72	High performance
1963	3830814	2.06	1.72	Low performance
1963	3837731	2.19	1.72	Z11
1963-65	3830817	2.19	1.72	340 HP
1964	3814690	2.19	1.72	High performance (used until 10/63)
1964	3830814	2.06	1.72	Low performance
1964	3852583	2.19	1.72	High performance (used AFTER 10/63)
1965	3852583	2.19	1.72	High performance
1965	3830814	2.06	1.72	Low performance
All	3819333	1.94	1.66	Truck
Engine block casting numbers
Year:	Casting Number	Notes:
1961	3995623	Cast in block
1961	3795623	Stamped on block
1962	3788068
1962-63	3839752
1962-64	3860386
1963	3830814
1964	3844422
1965	3857656
1965	3839754
	3857658	Boat ??
	3857651	Boat ??
Note: Truck blocks had a chamfer at the top of the cylinder wall for valve relief.
Intake manifold part numbers:
Year:	Casting Number	Notes:
1961	3797776
1962	3814678	380 HP
1962	3814881	409 HP
1962	3822983	NASCAR PACKAGE
1962	3837733	Z11 BOTTOM
1962	3830623	Z11 TOP
1963	3830831	340 HP
1963	3814678	400 HP
1963	3814881	425 HP
1963	3837733	Z11 BOTTOM
1963	3830623	Z11 TOP
1964	3844465	340 HP
1964	3844463	400 HP
1964	3814881	425 HP
1965	3844465	340 HP
1965	3844463	400 HP
Crankshaft part numbers:
Year:	Casting Number	Notes:
	3788072	3.50" stroke
	3795589	3.50" stroke
	3829027	3.50" stroke
1963	3837466	3.65" stroke (Z11 motor)
	3838416	3.50" stroke
All the above crankshafts are forged steel
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