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is the 454 taller then the 350 and can you tell me the diff i know one is small block witch is the 350 im putting the 454 in a 1991 pickup and there no room for the exhaust or the manifold i need help i done engine swap but they were the same size
 

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A big block Chevy and a small block Chevy measures the same from the center of the motor mounts to the face of the flange where the trans bolts up.. The difference is from the center of the mount to the front of the engine.. ;) The big block will be taller... :thumbup:
 
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