The engine with casting number 10111482 is typically a small block Chevy engine, and it generally features a 2-bolt main configuration. However, some variations may exist, so it's essential to verify the specific engine in question, as modifications could have been made. Always check the engine's assembly date and other identifying marks for confirmation.
4 bolt main
1500--2 bolt, 2500 4 bolt
The difference between a 2 bolt main and 4 bolt main is how many bolts hold the caps that hold on the crankshaft. (A 2 bolt main has 2 bolts to every cap and the 4 bolt main has 4 bolts to every cap) A 2 bolt main should be able to handle 500hp as long as you don't push it above 5500RPMs.
no cause a 4 bolt main has 2 extra bolts on each main
i have a engine with this # and its a 2 bolt main
4
4 bolt their stronger better lasting
That would be a 4-bolt engine in that truck.
To tell if your engine is a 2 bolt main or a 4 bolt main. Turn the engine upside down on an engine stand. Next, count the number of bolts on each main bearing cap. if there are two, then its a 2 bolt main. And if there are4, then its a 4 bolt main. This applies to the three center caps. The front and rear are always 2 bolt.
I can't answer your question but I can say that my 260 hp 350 Mercruiser has 2 bolt mains and a 4 bolt rear main. Go figure! So I take it from your question that you also have 2 bolt mains with a 4 bolt rear main.
should be 4-bolt
If its a 1/2 ton it will be a 2- bolt main, You can run the engine # if you need to know for sure. But i'd bet its a 2-bolt