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Interesting question since I am currently in the process of doing just this.
First off you will need to custom fabricate motor mounts for this install.
You will also need to custom fabricate a transmission mount.
The two piece drive shaft will have to be shortened with a new front spline to fit the new transmission.The dynaflow will not bolt up to the 455.
Now for the hard part the front steering linkage will need to be lowered about two inches to accomadate the 455 oil pan or I suppose a custom oil pan could be made.
Also the Power Steering will not fit in the engine compartment without removing some of the drives side wheel covering.I chose to cut this out and weld in a plate to cover the hole.
Also the transmission linkage on a turbo400(my transmission choice)is on the wrong side but any aftermarket shifter with cable linkage should work.
The exhaust manifolds/headers will not line up to the factory exhaust and the front of the exhaust system will need to be modofied accordingly.
Lastly there is no chance that the hood will close without cutting a hole in it or putting on a scoop.
Join me in this quest to make 63 rivs without nailheads
cjeboyle@juno.com
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∙ 14y ago
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