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Access GMC  wiring diagrams and repair procedures. Learn how to repair, install or remove a part, reset engine lights...
 
GMC 250 Engine (L6, 250 cid, 4.1L)
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This GMC 250/4.1L engine/motor can fit the K25/K2500 Pickup, K35/K3500 Pickup, K15/K1500 Pickup, G35/G3500 Van, P35/P3500 Van, P15/P1500 Van, G25/G2500 Van, K25/K2500 Suburban, K15/K1500 Suburban, G15/G1500 Van, P25/P2500 Van, C25/C2500 Pickup, C35/C3500 Pickup, Jimmy, C15/C1500 Pickup and some other GMC car and/or truck applications - for more details see your automobile manual.

1979 - 1984

1979 GMC 250 Integral Head, two barrel carb, four hole smog in head.
Engine DescriptionSizeVINPrice/Core
1979 GMC 250 Integral Head, two barrel carb, four hole smog in head.

250/4.1LD$1,340/$250
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1975 - 1978

1975 GMC 250 With smog, one barrel integral head, valve cover 4-3/4" wide, with A/C.
Engine DescriptionSizeVINPrice/Core
1975 GMC 250 With smog, one barrel integral head, valve cover 4-3/4" wide, with A/C.

250/4.1LD$1,340/$250
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1973 - 1974

1973-1974 GMC 250 Without smog,  three bolt starter, without integral intake manifold.
Engine DescriptionSizeVINPrice/Core
1973-1974 GMC 250 Without smog, three bolt starter, without integral intake manifold.

250/4.1LD$1,191/$250
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1966 - 1972

1971 GMC 250 Without smog,  two hole starter mount.
Engine DescriptionSizeVINPrice/Core
1971 GMC 250 Without smog, two hole starter mount.

250/4.1L$1,191/$250
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For troubleshooting tips and repair information on the GMC 250/4.1L engine, please visit our Information page.