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Access Buick  wiring diagrams and repair procedures. Learn how to repair, install or remove a part, reset engine lights...
 
Buick 400 Engine (V8, 400 cid, 6.6L)
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This Buick 400/6.6L engine/motor can fit the Skylark, Sportwagon, GS 400, Le Sabre and some other Buick car and/or truck applications - for more details see your automobile manual.

1975

1975 Buick 400 No smog,  Specify head #,  2 1/2" crank centering ring,  5 motor mount on left 4 on right
Engine DescriptionSizeVINPrice/Core
1975 Buick 400 No smog, Specify head #, 2 1/2" crank centering ring, 5 motor mount on left 4 on right

400/6.6LS$1,804/$400
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1968 - 1969

1968 Buick 400 No smog
Engine DescriptionSizeVINPrice/Core
1968 Buick 400 No smog

400/6.6L$1,804/$400
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For troubleshooting tips and repair information on the Buick 400/6.6L engine, please visit our Information page.