Riviera

Year(s)	Engine	Core Size	Rows
1963-65	V8 All	17-3/8 x 24-3/4	3,4

Year(s)	Engine	Core Size	Rows
1963-65	V8	17-1/4 x 25-1/2	2

NOTE: Filler Neck Driver Side, 2-3/4" Wide Driver Mount, 3-1/2" Wide Pass. Mount

Year(s)	Engine	Core Size	Rows
1966	V8 401/425	17 x 28-3/8	2,3,4

NOTE: Filler Neck Driver

Year(s)	Engine	Core Size	Rows
1966	V8	18-1/4 x 28-1/4	2

NOTE: Factory 2" Thick Core, 2-3/4" Wide Driver Mount, 3-1/2" Wide Pass. Mount

Year(s)	Engine	Core Size	Rows
1967-69	V8 430	17 x 28-3/8	3,4

Year(s)	Engine	Core Size	Rows
1967-71	V8 All	18-1/4 x 28-1/4	2

NOTE: Factory 2" Thick Core, 2-3/4" Wide Driver Mount, 3-1/2" Wide Pass. Mount

Year(s)	Engine	Core Size	Rows
1970-71	V8 350/455	17 x 28-3/8	3,4

NOTE: Factory 2-5/8" Thick Core, 3-1/2" Wide Mounts

Year(s)	Engine	Core Size	Rows
1970-71	V8 350/455	17 x 28-3/8	4

Year(s)	Engine	Core Size	Rows
1972-76	V8 All	18-1/4 x 28-1/4	2

NOTE: 28-3/8" Wide, Factory 2" Thick Core, 2-3/4" Wide Mounts

Year(s)	Engine	Core Size	Rows
1972-76	V8	17 x 28-3/8	3,4