Engine Details • GMC 454CID (7.4L) GAS • 1970–00
Models
C15, C1500, C1500 Suburban, C15/C1500 Pickup, C15/C1500 Suburban, C15 Suburban, C25, C2500, C2500 Suburban, C25/C2500 Pickup, C25/C2500 Suburban, C25 Suburban, C35, C3500, C35/C3500 Pickup, G25, G35, G3500, G35/G3500 Van, Jimmy, K15, K1500, K15/K1500 Pickup, K15/K1500 Suburban, K25, K2500, K2500 Suburban, K25/K2500 Pickup, K25/K2500 Suburban, K25 Suburban, K3500, K35/K3500 Pickup, P1500, P25/P2500 Van, P35, P3500, P35/P3500 Van, R2500, R2500 Suburban, R3500, Savana 3500, Sprint, V2500 Suburban, V3500
Liters
7.4
CID
454
Fuel / Delivery
GAS / CARB, FI
Cyl.
8
Version
-
VIN
B, E, J, L, N, S, V, W, X, Y, Z
Desc.
-
Bore
4.250"
Stroke
4.00'' (101.6mm)
Head
OHV
Asp.
N
Misc.
(Inc Truck: NM8: Export (Lead Fuel); H4D: Emission Control (Cast Iron Exhaust Manifold) H5D - HD Emissions Control (Stainless Exhaust Manifold)
Available Part Categories
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Valve Seat for GMC 454CID (7.4L) GAS • 1970–00
16 parts found
| Part No. | Description | Quantity | Specs |
|---|---|---|---|
| 30667 | Exh., L/D (Exc. Hi-Perf. & Alum. Heads) | 8 | |
| 30667S | Package of 4 each of 30667 | 8 | |
| 30691 | Int., L/D, M/D Series 50, Series 60, Series 70, w/1.840" Valve Head Dia. | 8 | |
| 30691S | Package of 4 each of 30691 | 8 | |
| 30991 | Int., '70-76 | 8 | |
| 30991S | Package of 4 each of 30991 | 8 | |
| 31779 | Int., L/D, w/2.065" Valve Head Dia. | 8 | |
| 31779S | Package of 4 each of 31779 | 8 | |
| 70660 | Exh., L/D, Replacement For Head w/Factory Installed Seat | 8 | |
| 70660S | Package of 4 each of 70660 | 8 | |
| 70667 | Exh., L/D w/1.720" Valve Head Dia. | 8 | |
| 70667S | Package of 4 each of 70667 | 8 | |
| 70672 | Exh., '79-81 M/D | 8 | |
| 70672S | Package of 4 each of 70672 | 8 | |
| 71087 | Exh., w/Factory Installed Exh. Seat, Due To Seat Pocket Variance - Seat May Need To Be Topped, '71-90 | 8 | |
| 71087S | Package of 4 each of 71087 | 8 |