Pontiac multi-carburetor intake manifold #'s

D-32960 (2x4 cast iron) (1956 developmental 316)

523544(2x4 cast iron) (1956 production 316)

528533(3x2 cast iron) (1957 production 347) 290HP, 317HP Rochester

529371 (3x2 cast iron) (1958 production 370) 300HP, 330HP Rochester

532422 (3x2 cast iron) (1959 production 389) 315HP, 345HP Rochester

535552 (3x2 cast iron) (1960 Super duty 389) 363HP Rochester

536194 (3x2 cast iron) (1960 production 389) 318HP, 348HP Rochester

538202 (3x2 cast iron) (1961 production 389) 318HP, 348HP Rochester

540510(3x2 aluminum) (Super duty) (fits 1955 – 1960 cylinder heads) 368HP Rochester

542991 (2x4 aluminum) (1961, 1962 Super duty)

541690 (3x2 cast iron)  (1962 production 389, 421) 318HP, 348HP Rochester

9770319 (2x4 aluminum) (1962 Super duty 421)

9770859 (2x4 aluminum) (1962, 1963 Super duty 421)

9772128 (2x4 aluminum) (1963 Super duty 421)

9772598 (2x4 aluminum) (1963 Super duty 421)

9770275 (3x2 cast iron) (1963 production 389, 421) 313HP, 370HP Rochester

9775088 (3x2 cast iron) (1964 production 389, 421) 330HP, 348HP, 350HP, 370HP  Rochester

9778818 (3x2 cast iron) (1965 production 389, 421) 338HP, 360HP, 356HP, 376HP Rochester

9782898 (3x2 cast iron) (1966 production 389, 421) 3

478489 (2x4 aluminum) (1969 RA V 303)

546235 (2x4 aluminum) (1969 RA V 303)