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Shyguy · 03-04-2012, 01:45 PM

When we put a complete '73 454 in my '71 we used the motor mounts for the '73 so the headers would clean.

By complete I mean the engine had everything except a carb.

We did not want to have to have a new drive shaft made so we mated the engine to transmission and let the engine settle into the frame and drilled new holes for the motor mounts.

I already had a 3 core radiator so we did not have to replace it.

We used the fan shroud from the '73 truck, but did have to modify it some to clear some of the pulleys.

We did have to extend the alternator wires over to the passenger side from the driver's side.

Everything worked out pretty easy actually for us.

03-04-2012, 01:45 PM	#3
Shyguy Junior Member Join Date: Dec 2006 Location: Southeast Missouri Posts: 2,436	Re: BBC swap... When we put a complete '73 454 in my '71 we used the motor mounts for the '73 so the headers would clean. By complete I mean the engine had everything except a carb. We did not want to have to have a new drive shaft made so we mated the engine to transmission and let the engine settle into the frame and drilled new holes for the motor mounts. I already had a 3 core radiator so we did not have to replace it. We used the fan shroud from the '73 truck, but did have to modify it some to clear some of the pulleys. We did have to extend the alternator wires over to the passenger side from the driver's side. Everything worked out pretty easy actually for us. __________________ '67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E.