4-151 (2.5L)
TBI pressed-in rocker arm studs
pressed-in rocker arm studs
(4.3L)
(6-262, 4.3L)
screwed-in rocker arm studs
6-262 (4.3L)
TBI screwed-in rocker arm studs
CPI pressed-in rocker arm studs
CPI screwed-in rocker arm studs
Used AVALANCHE 1500 Cylinder Heads
5.3L
6.0L
(5.3L)
Used AVALANCHE 2500 Cylinder Heads
(8.1L) R.
(8.1L) L.
(1.6L)
6-191 (3.1L) w/o roller rocker arms
4-138 (2.3L)
6-173 (2.8L)
6-191 (3.1L) roller rocker arms
6-191 (3.1L)
4-134 (2.2L)
4-121 (2.0L)
4-151 (2.5L)
6-181 (3.0L)
4-138 (2.3L) HO (VIN A)
6-204 (3.3L)
4-138 (2.3L)
6.2L
3.6L R.
8-305 (5.0L) MFI
4-151 (2.5L)
8-305 (5.0L) TBI
3.6L L.
6-173 (2.8L)
8-350 (5.7L)
6-231 (3.8L)
8-305 (5.0L)
8-307 (5.0L)
8-305 (5.0L)
8-350 (5.7L) gasoline
8-265 (4.3L) gasoline
8-350 (5.7L)
6-262 (4.3L)
8-265 (4.3L) CNG
8-350 (5.7L) diesel
4-138 (2.3L) MT
4-138 (2.3L) AT
4-146 (2.4L)
2.2L VIN F EGR port in head
(2.2L) VIN 6 (flex fuel)
2.2L VIN 4
4-121 (2.0L)
(2.2L) w/o EGR port in head
(2.2L) VIN F w/o EGR port in head
2.4L w/o EGR
6-191 (3.1L)
4-151 (2.5L) w/o ID XJS on block
4-151 (2.5L) ID XJS on block
4-151 (2.5L)
6-173 (2.8L)
6-173 (2.8L) 2BC
6-173 (2.8L) EFI
6-260 (4.3L, diesel)
Standard Cylinder Head Option Only
Used CHEVROLET 10 PICKUP Cylinder Heads
8-350 (5.7L) (EFI)
8-305 (5.0L)
6-262 (4.3L)
Used CHEVROLET 1500 PICKUP Cylinder Heads
8-454 (7.4L)
8-395 (6.5L, diesel) (VIN "S")
8-350 (5.7L) gasoline
8-305 (5.0L)
8-395 (6.5L, diesel) turbo (VIN "S")
6-262 (4.3L)
8-350 (5.7L)
8-379 (6.2L, diesel) (VIN "C")
8-350 (5.7L) CNG
Used CHEVROLET 20 PICKUP Cylinder Heads
8-305 (5.0L)
6-292 (4.8L)
6-292 (4.8L) early
6-262 (4.3L)
8-350 (5.7L) 4BC
8-350 (5.7L) EFI from 8500 lb GVW
8-350 (5.7L) EFI thru 8500 lb GVW
8-379 (6.2L, diesel) (VIN "J")
6-292 (4.8L) late
Used CHEVROLET 2500 PICKUP Cylinder Heads
8-350 (5.7L) gasoline
8-350 (5.7L) gasoline from 8501 GVW
8-305 (5.0L)
8-350 (5.7L) EFI from 8501 GVW
6-262 (4.3L)
6-262 (4.3L) from 8501 GVW
8-350 (5.7L) from 8501 GVW
8-395 (6.5L, diesel)
8-350 (5.7L) gasoline thru 8500 GVW
8-350 (5.7L) CNG
Used CHEVROLET 30 PICKUP Cylinder Heads
6-292 (4.8L)
8-350 (5.7L) 4BC
8-350 (5.7L) EFI
6-292 (4.8L) early
6-292 (4.8L) late
8-379 (6.2L, diesel) (VIN "J")
Used CHEVROLET 3500 PICKUP Cylinder Heads
8-496 (8.1L) (I-beam Fr axle only) R.
8-350 (5.7L) CNG
8-454 (7.4L)
8-496 (8.1L) (I-beam Fr axle only) L.
8-379 (6.2L, diesel) (VIN "J")
8-395 (6.5L, diesel)
8-350 (5.7L)
8-350 (5.7L) gasoline
Used CHEVROLET FORWARD CONTROL Cylinder Heads
8-350 (5.7L)
6-262 (4.3L) from 8501 lb GVW
6-292 (4.8L) late
6-292 (4.8L)
8-350 (5.7L) EFI
8-350 (5.7L) 4BC
6-292 (4.8L) early
6-262 (4.3L) thru 8500 lb GVW
8-454 (7.4L)
6-262 (4.3L)
Used CHEVROLET VAN Cylinder Heads
8-454 (7.4L) Express
6-262 (4.3L) Express from 8501 lb GVW
8-292 (4.8L)
8-350 (5.7L) gasoline from 8501 lb GVW
8-395 (6.5L, diesel)
8-350 (5.7L) TH 400
8-350 (5.7L) EFI TH 700
8-350 (5.7L) Express CNG
8-395 (6.5L, diesel) Express
8-350 (5.7L) gasoline 4L80E trans
2.0L
2.2L Calif emis (opt NU6)
2.2L Fed emis (opt NT7)
2.4L
2.2L
2.2L Calif emis (opt NU1)
3.5L
2.8L
3.7L
5.3L
2.9L
6-191 (3.1L) roller rocker arms
6-173 (2.8L)
6-191 (3.1L) w/o roller rocker arms
4-134 (2.2L)
6-191 (3.1L)
4-121 (2.0L)
LT-4
LS1 Eng (VIN G)
LS6 Eng (VIN S)
exc. ZR-1
cast iron
ZR-1 R.
6.2L VIN W, 8th digit, opt LS3
ZR-1 L.
6.2L
7.0L
1.4L
1.8L
(2.5L, VIN L)
2.0L
2.2L
2.4L
3.4L Calif
3.8L supercharger opt (VIN 1)
3.5L VIN K (8th digit)
3.4L Fed
5.3L
3.5L VIN N (8th digit) Fr
(8-350, 5.7L)
6-262 (4.3L)
3.8L
8-350 (5.7L) gasoline
Used LUMINA CAR Cylinder Heads
(3.1L)
6-191 (3.1L) methanol
6-191 (3.1L) gasoline
6-191 (3.1L) roller rocker arms
4-151 (2.5L)
6-191 (3.1L) w/o roller rocker arms
6-207 (3.4L)
(3.1L) Fed
(3.1L) Calif
6-231 (3.8L)
Used LUMINA VAN Cylinder Heads
(6-191, 3.1L)
6-191 (3.1L)
6-231 (3.8L)
(6-207, 3.4L)
2.4L VIN 1, 8th digit (opt LE5)
6-262 (4.3L)
2.4L VIN U, 8th digit (opt LE9)
(3.1L) Calif (NC1)
new style (emblem in bumper cover) 2.4L
4th VIN digit "Z" (New style) 3.5L
4th VIN digit "Z" (New style) 2.2L
2.4L VIN 0, 8th digit (opt LE9)
classic style (emblem in grille) 3.5L
3.5L VIN K, 8th digit (opt LZE)
Used MONTE CARLO Cylinder Heads
6-191 (3.1L)
8-305 (5.0L)
6-262 (4.3L)
3.8L VIN "1"
3.4L Fed
3.8L
3.5L VIN N (8th digit) Rr (AIR ports)
3.5L
6-231 (3.8L)
5.3L
(4-98, 1.6L) DOHC
(4-98, 1.6L) SOHC
(4-98, 1.6L)
(2.0L)
Used SILVERADO 1500 PICKUP Cylinder Heads
5.3L
5.3L VIN B (opt L33)
5.3L VIN T (opt LM7)
4.8L
6.0L w/o hybrid
new style (smooth Dr skin) 6.0L
5.3L LPG/CNG (opt LFT)
new style (smooth Dr skin) 4.3L
6.2L
6.0L gasoline
Used SILVERADO 2500 PICKUP Cylinder Heads
6.6L VIN 1 Fed emis (opt NF4)
6.6L VIN 2
6.6L Calif emis (opt NC1)
8.1L R.
new style (smooth Dr skin) 6.0L
8.1L L.
6.0L gasoline
6.6L VIN 1 Calif emis (opt NC1)
6.0L
new style (smooth Dr skin) 6.6L
Used SILVERADO 3500 PICKUP Cylinder Heads
6.6L
6.6L VIN 1 Fed emis (opt NF4)
6.6L Fed emis (opt NF2)
6.6L Fed emis (opt NF4)
classic style (creased Dr skin) 8.1L R.
6.0L gasoline
6.6L Calif emis (opt NC1)
6.0L
classic style (creased Dr skin) 8.1L L.
6.0L CNG
w/o turbo
turbo
(5.3L)
Used SUBURBAN 1500 Cylinder Heads
8-395 (6.5L, diesel)
8-364 (6.0L)
8-305 (5.0L)
8-323 (5.3L)
8-350 (5.7L) EFI
8-350 (5.7L)
8-350 (5.7L) (gasoline)
8-350 (5.7L) 4BC
Used SUBURBAN 2500 Cylinder Heads
8-364 (6.0L) gasoline
8-364 (6.0L)
8-350 (5.7L) EFI
8-395 (6.5L, diesel)
8-350 (5.7L) (gasoline)
8-350 (5.7L) 4BC
8-496 (8.1L) L.
8-350 (5.7L)
8-454 (7.4L)
8-364 (6.0L) CNG
6.2L
4.8L
6.0L
8-350 (5.7L, gasoline)
8-395 (6.5L, turbodiesel)
5.7L
5.3L
8-350 (5.7L)
Used TRAILBLAZER Cylinder Heads
(4.2L)
6.0L
5.3L
4.2L
Used TRAILBLAZER EXT Cylinder Heads
(4.2L)
4.2L
5.3L
Standard Cylinder Head Option Only
3.9L
3.5L
(3.9L)
Calif
