175
No, the 454 cubic inch engine was not offered as a stock option in the Chevy Nova at any point during its production. The Nova was primarily equipped with smaller engines, typically ranging from four-cylinder to small-block V8s. The 454 was more commonly found in larger Chevy models, such as the Chevelle and Corvette. However, some enthusiasts may have swapped in a 454 engine into a Nova as part of custom builds or modifications.
Carefuly
70 nova's never had a 454 in them and the horsepower rating would have to be assessed from the year the engine is and if anything has been done to the engine other than being stock.
yes
9:1.
400 small block 2brl was the basic engine with a 454 big block optional
Heads off a 454 engine will not fit a 305 engine A 454 is a big block and a 305 is a small block. Even if they did fit it would probably run poorly due to low compression because the combustion chambers on the the 454 heads are larger than the ones on the 305 heads
You should be able to. The 454 came stock in the '74 which is the same body style.
yes there is.
For complete engines, the weight of the average (stock) 400 Pontiac at about 650 lbs. is roughly between the average (stock) Chevy small block at about 575 lbs. and the average (stock) Chevy big block at about 680-685 lbs..
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.
Yes- possible flexplate chage