If you mean that it goes down almost all the way, but won't go down the last 1/4" or so, then it's not lined up with the oil pump shaft. Bump the engine around with the starter a little, and it should drop right in.
have you checked the fuel gauge itself to make sure it is working
no it wont to small of a starter
V8 swapYes you can. you will have to update the computer and most of the sensors. SOme of them are the same for the v6. The rear axel wont have to be swapped out but it would be a good thing. unless ur out hot rodding it it will last.
Chevy in 1977 changed the rear main oil seal to a one piece seal. the older crankshaft wont work.
replace module, rotor button and dist. cap
check the distributor
start with fuel delivery and move on to ignition. fuel filter-fuel pump-plugs-wires-distributor.
I would replace the ignition module in the distributor. Also need to make sure the coil and wire is good too.
it depends if the 86 caprice has a GM small block 305, 327, 350, or 383, and if the c1500 has GM small block v8 it will fit.. all GM/Chevy 305, 327, 350, or 383 engines have the same bolt pattern for all the transmissions and are interchangeable as long as the transmission came off of a 305, 327, 350, or 383 block it will fit those engine sizes, unless the truck is 4X4 than it wont or you would have to eliminate the 4x4, also it could be a possibility the drive shaft could be to long or to short but most trucks have an adjusting drive shaft so you wont have to worry
if the distributor goes bad then u probably wont get a spark.
you have a bad control module, and check that coil resistance, cause they will fire but not how it should!! should be a good strong blue spark, if not replace it!
Check the ECM Electronic Control Module, under the distributor cap If its bad sometimes it wont start or it will and then die