There should be a cable that screws in the back of the speedo and into the transmission, the motor size has nothing to do with it.
unscrew it from the speedometer head under the dash and unscrew it from the tranny and pull the old one out and install the new cable.
To install a 454 Chevy big block engine in a 1976 Chevy Nova, you can use headers specifically designed for big block Chevy applications, such as Hooker Super Comp or Hedman Hustler headers. These headers provide the necessary clearance and fitment for the larger engine within the Nova's engine bay. Additionally, ensure you have a proper set of engine mounts and consider any modifications needed for steering or exhaust clearance.
My Chevy nova is a 1976 350 automatic and the speedometer goes up to 100, i haven't tested for myself yet, its still new for me.
how to remove a 1966 283 engine from a Nova
Depends on the year
Yes
It should bury the speedometer depending on the gear ratio.
To install a 350 motor into an automatic Chevy Nova, first, ensure you have the correct engine mounts and transmission adapter if needed. Remove the old engine by disconnecting all necessary components, such as wiring, fuel lines, and the exhaust system, then lift it out. Position the new 350 engine over the engine bay, aligning it with the mounts, and secure it in place. Finally, reconnect all components, including the transmission linkage, and ensure all connections are tight before starting the engine.
you can have anything from the 6 cyl. up to the 396 v8 in the 68 nova.
It can cost between $500 and $2000+ to rebuild a 307 Engine on a Chevy Nova. It all depends on who is rebuilding the engine, the brand of the parts, and where the parts are bought.
Need some more info, what year is it and what tune up parts did you install.
You have a 1973 nova 350