Diagrams:

Intake Manifold
(click to enlarge)

B5538	68-71	BOLT SET - intake manifold "A" headmark, 68-69 427, 70-71 w/spec. hi-perf. 454, (16 pc.)	24.95
C5504	68-74	BOLT SET - intake manifold, for use w/original engine lift LH corner, "A" headmark	27.17
B5531	68-74	BOLT SET - 427/454 intake manifold, "M" headmark, (zinc)(16 pc.)	31.50
B5542	68	BOLT SET - intake manifold, "FP" hm, zinc	24.55
B5519	68-74	GASKET SET - intake manifold, 427/454, hi-perf. rectangular port	34.95
B5500	68-71	GASKET SET - intake manifold, 427/454 w/square port heads, 1971 spec. hi-perf., correct "kormetal" w/dark gray color and round exposed tab	51.25
B5503	68-72	GASKET SET - intake manifold, 427/454, w/oval port heads, correct "kormetal" w/dark gray color & round exposed tab	51.25
B5517	68-74	GASKET SET - intake manifold, 427/454 w/oval port heads	31.65
C5507	68E	MANIFOLD - intake, #3919850, 400hp 3x2 oval port ,recon.		CALL
C5508	68E	MANIFOLD - intake, #3919852, 435hp 3x2 square port, recon.		CALL
C5509	68L-69	MANIFOLD - intake, #3937795, 400hp 3x2 oval port, recon.		CALL
C5512	68L-69	MANIFOLD - intake, #3937797, 435hp 3x2 square port, recon.		CALL
C5513	68E	MANIFOLD - intake, #3919849, 427/390hp 1x4, aluminum thru March 1968, reconditioned		CALL
C5523	68L	MANIFOLD - intake, #3937793, 427/390hp, 1x4, aluminum, used after March 1968, reconditioned		CALL
C5514	69	MANIFOLD - intake, #3947801, 427/390hp 1x4, aluminum, recon.		CALL
C5520	71	MANIFOLD - intake, #3963569, 454/425hp, aluminum w/raised combustion chamber numbers on runners		CALL
C5528	70-71	MANIFOLD - intake, #3963569, 454/425hp, aluminum w/o raised combustion chamber numbers on runners, 1971 replacement	324.95
C5564	70	MANIFOLD - intake, #3965577, DATED inquire		CALL
C5567	70-71	MANIFOLD - intake, #3955287, DATED inquire	349.95
C5568	72	MANIFOLD - intake, #6263753, DATED inquire	249.95
C5570	73	MANIFOLD - intake, #353015, DATED inquire	249.95
C5571	74	MANIFOLD - intake, #336789, DATED inquire	249.95
A5525	68-82	WASHER SET - aluminum intake manifold hold-down bolts	11.97