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Exhaust Manifold Casting Numbers - Small Block

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Small block V8: 265, 283, 302, 307, 327, 350, 400

CASTING # R/L	CID	YEAR(S)	APPLICATION	NOTES
329225 - L	454	73-75	PASSENGER, CHEVELLE	W/ & W/O A.I.R.
353028 - R	454	73-75	PASSENGER, CHEVELLE	W/ & W/O A.I.R.
3856306 - R	396	65	PASSENGER	STANDARD PERFORMANCE
3857297 - L	396	65	PASSENGER	STANDARD PERFORMANCE
3868874 - R	396	66-67	CHEVELLE	ALL
3884504 - R	396-427	65-67	PASSENGER	390, 385 HP, STANDARD PERFORMANCE
3892307 - L	396-427	65-67	PASSENGER	390, 385 HP, STANDARD PERFORMANCE
3902401 - L	396	67	CHEVELLE - R	ALL
3732793 - L	348	58-61	PASSENGER	ALL
3732794 - R	348	58-61	PASSENGER	ALL
3767583 - L	348	59-61	PASSENGER	ALL
3767583 - L	409	61	PASSENGER	ALL
3767584 - R	348	59-61	PASSENGER	ALL
3767584 - R	409	61	PASSENGER	ALL
3814682 - R	409	62-64	PASSENGER	63-64 LOW PERFORMANCE
3814683 - L	409	62-64	PASSENGER	63-64 LOW PERFORMANCE
3822925 - L	409	62-64	PASSENGER	INCLUDE 63 ZLL SPECIAL HIGH PERFORMANCE
3822926 - R	409	62-64	PASSENGER	INCLUDE 63 ZLL SPECIAL HIGH PERFORMANCE
3855161 - L	409	65	PASSENGER	340 & 400 HP
3855162 - R	409	65	PASSENGER	340 & 400 HP
3856301 - L	396	65	PASSENGER, CORVETTE	425 HP
3856302 - R	396	65	PASSENGER	425 HP
3868874 - R	396	65	CHEVELLE	Z15, 375 HP
3869925 - L	396	65	CHEVELLE	Z16, 375 HP
3880827 - L	427	66-69	CORVETTE	ALL 427 ENGINES
3880828 - R	427	66-69	CORVETTE	ALL 427 ENGINES
3880828 - R	424	70	CORVETTE	LS5, 390 HP
3880828 - R	424	71	CORVETTE	LS5 365 HP, LS6, 425 HP
3880869 - L	424	71	CORVETTE	LS5 365 HP, LS6, 425 HP
3883827 - L	427	66	PASSENGER	HIGH PERFORMANCE
3883828 - R	427	66	PASSENGER	HIGH PERFORMANCE
3883999 - L	396	66	CHEVELLE	ALL
3909879 - L	396	67-70	CAMARO, CHEVELLE, NOVA	ALL
3909879 - L	427	69	CAMARO, CHEVELLE	COPO
3909879 - L	454	70	CHEVELLE	LS6
3909880 - R	396	67	CAMARO, CHEVELLE	L35, L34
3914613 - L	396,427	68-70	PASSENGER	ALL
3916178 - R	396,402	68-70	CAMARO, CHEVELLE, NOVA	ALL
3916178 - R	427	69	PASSENGER, CAMARO, CHEVELLE, NOVA
3916178 - R	454	70	CHEVELLE	LS6
3916178 - R	402,424	70	CHEVELLE	LS5 & LS6
3916178 - R	424	70	PASSENGER	ALL
3969869 - L	454	70	CORVETTE	LS5, 390 HP
3969869 - L	454	71	CORVETTE	LS5, 365 HP
3969869 - L	424	72	CORVETTE	LS5, 270 HP W/A.I.R.
3989310 - R	402, 454	71-72	PASSENGER, CHEVELLE, MONTE CARLO	ALL
3989310 - R	402	71-72	CAMARO	ALL
3989343 - L	402	71-72	CAMARO	ALL
3989343 - L	402,454	71-72	PASSENGER, CHEVELLE, MONTE CARLO	ALL

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