3.6L lower
3.8L lower
3.6L
2.4L
3.6L upper
3.0L
3.8L upper
5.3L
8-350 2BC
8-350 4BC
8-260
6-231
8-350 4BC Calif
8-350 4BC exc. Calif
6-250
8-350 exc. Calif
8-301 (4.9L)
6-231
8-350 4BC AIR
8-350 2BC
8-425 1-4BC
8-455 exc. Calif
exc. LeSabre 2-4BC
8-430
6-231 VIN (5th digit) "A" (even firing)
Used BUICK SPECIAL Intake Manifolds
8-350 4BC w/o AIR
8-350 2BC AIR
8-350 2BC
8-455 Calif
8-300 4BC
8-300 2BC
8-300
8-400 cast iron
8-400
8-340 2BC
6-173 (2.8L) EFI lower
8-305 (5.0L) alum
6-204 (3.3L)
8-350 4BC
8-350 4BC VIN (5th digit) "L" (Chev)
6-231 (3.8L)
8-350 (5.7L, diesel) alum
4-134 (2.2L) upper
(3.1L) lower
8-350 2BC
6-231 (3.8L) VIN (8th digit) "3"
8-307 (5.0L) alum
8-307 (5.0L)
6-260 (4.3L, diesel) w/o external EGR
6-231 (3.8L) VIN (8th digit) "C" early
8-307 (5.0L) cast iron
6-252 (4.1L)
6-231 (3.8L) w/o coolant bypass fitting
6-260 (4.3L, diesel) external EGR
6-181 (3.0L)
upper
lower
Used LACROSSE Intake Manifolds
3.8L upper
2.4L
3.6L
3.6L upper
3.8L lower
3.0L
3.6L lower
5.3L
6-231 (3.8L) Calif
6-181 (3.0L)
6-231 (3.8L) Fed & Canada
(6-231, 3.8L) lower
6-231 (3.8L)
8-350 (5.7L) diesel
8-307 (5.0L) cast iron
(6-231, 3.8L) TPI (VIN "L") lower
6-231 (3.8L) 2BC
6-231 (3.8L) 4BC (turbo)
3.8L lower
3.9L lower
3.8L upper
3.9L upper
4.6L
Used PARK AVENUE Intake Manifolds
6-260 (4.3L, diesel) external EGR
8-350 (5.7L, diesel)
6-231 (3.8L) coolant bypass fitting
6-260 (4.3L, diesel) w/o external EGR
6-181 (3.0L)
8-267 (4.4L) cast iron
8-307 (5.0L) cast iron
8-307 (5.0L) alum
8-350 (5.7L, diesel) alum
6-231 (3.8L)
4.2L
5.3L
early
upper
lower
late
6-260 (4.3L, diesel)
6-231 (3.8L) 2BC turbo
6-231 (3.8L) w/o supercharger opt lower
8-455 2BC
6-231 (3.8L) w/o turbo
6-231 (3.8L) 2BC Calif
6-231 (3.8L) turbo eng ID NDB
8-350 4BC Calif
2.4L
8-305 (5.0L) 2BC
lower
6-231 (3.8L) eng ID NCA
6-231 (3.8L) eng ID NCB
upper
(6-231, 3.8L)
8-350 VIN (5th digit) "J" (Buick)
8-350 (5.7L, diesel)
6-231 (3.8L)
6-252 (4.1L)
(8-455) exc. Calif
Used ROADMASTER Intake Manifolds
(8-305, 5.0L)
(8-350, 5.7L)
4-112 (1.8L) turbo w/o EGR
VIN (8th digit) "M" (Pont, w/turbo)
exc. Calif
4-121 (2.0L) 2 BC, VIN "B" (Canada)
4-112 (1.8L) turbo EGR
VIN (8th digit) "1" (Chev)
4-121 (2.0L) TBI, VIN "P" (US)
4-112 (1.8L) turbo
Calif
4-112 (1.8L) w/o turbo
8-260
6-204 (3.3L)
8-305 (5.0L)
6-231 (3.8L)
6-191 (3.1L) upper
8-350 2BC
8-301 "D" shape carb air horn
8-301 round carb air horn
6-173 (2.8L) EFI upper
8-350 4BC Calif
Used SOMERSET Intake Manifolds
6-181 (3.0L)
4-151 (2.5L)
6-181 (3.0L) early
6-181 (3.0L) late
3.5L upper
3.9L upper
3.5L lower
(3.5L) lower
(3.9L) lower
3.9L lower
(3.5L) upper
(3.9L) upper
