That year vehicle has a carburetor and does not use a knock sensor.
under the intake manifold.
I believe it is like all chevy's 18436572
~$400 on OEM parts + 8 hours of labor
4 degrees BTDC / Before top dead center.
Advertised horsepower is: 175 HP @ 3600 RPMs.
301 pontiac engine mounts and 76 chevy nova frame mounts
The 400 Chevy is a small block engine. The 400 BIG BLOCK Chevy does not exist! 402 big block Chevy does. it seems in the early 70s Chevy put 402s in their pick ups and they had 400 badges. this opened the can of worms known as the non-existant big block 400.
bad sensor module, cost you around $400.
You don't!! It's not an easy job. I recommend a certified mechanic or a Mazda Dealership. Probably gonna run btwn $400-$600...but the cars performance will definitely increase.
You can if it has the Chevy bolt pattern.
I have a 95 G20 that used to do the same thing. I replaced the knock sensor and the EGR Solenoid. Both of these sensor's can cause the idle on the car to be erratic and stall. If you buy the parts and do the work its an easy fix for around $200, the labor will surely make this around the $400 mark.
Engine offerings for the 1976 model year included a 250 cubic-inch inline six and a variety of V8s including the 305, 350 and 400 cubic-inch versions of the Chevy small-block V8