Can i swap a 1968 chevy 350 motor, with a 1990 chevy blazor 5.7 silverado?

Asked by Apr 09, 2017 at 05:40 PM about the 1990 Chevrolet Blazer Silverado 4WD

Question type: Maintenance & Repair

I need to replace a 1990 chevy Blazor 350(5.7),
silverado motor with a 1968 chevy 350. Will it fit?

3 Answers

Will a 1968 chevy 350 motor fit in a 1990 chevy blazer silverado?

100,615

If your state requires emissions testing better forget it. It won't be a direct fit, some mods will have to be made to the mounts, and then there is the tranny, the 90 won't work with that engine, the fuel system will have to be modified for low pressure, not high, then you will need to modify the driveline to match whatever tranny you put in. Lot of work and expense putting non emissions componets into a full emissions vehicle.

73,875

Yep...

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