Hi again Andrew.
Answers to some of your questions…
427 colours….the most popular blue on original 427 cars was Guardsman Blue.
Engines….you are correct, original 427 cars had 427FE (and 428FE) engines, but they are definitely big block engines.
The 351W, punched out to 427 cubic inches by Roush and others, is a small block, and was not fitted to the American Shelby 427 Cobras.
Gearboxes….yes, original 427 cars used a Toploader 4 speed gearbox. There was not a 5 speed version of the Toploader.
The Tremec 5 speed transmissions are a popular choice in 427 replicas.
Differential….I know a little about the 289 and 427 diffs, but plenty on this forum know a lot more. Here’s a starting point...
http://www.clubcobra.com/forums/all-...erentials.html
Bottom line though…. talk to others in your home State. Advice from this forum is of no help if you can’t get your car passed by your Victorian registration department.
And continue asking questions here on Club Cobra.
Cheers!
Glen