An all-out racing version should be able to get in the 600-700 range.
It depends on what it came out of. least 165 most 190.
On a motor 4- bolt or 2-bolt refers to how many bolts are on the main cap what holds the crack. when it comes down to it if your not putting a supercharger on the motor or making to a performers engine, you don't really need a 4-bolt main An 89 would probably have the dipstick below #6. It would most likely be a 4 bolt main, but not guaranteed.
There are many different versions of that engine ranging from 145 hp to 205 hp.
190hp
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.
210hp
4 bolts should be holding the engine to the engine stand.
The 1993 G20 van with a 5.7L engine typically features a 4-bolt main configuration, which is common for many Chevrolet small-block V8 engines from that era. However, it's important to verify the specific engine code or configuration, as variations can exist depending on the manufacturing details. Checking the engine block for casting numbers or consulting the vehicle's service manual can provide definitive confirmation.
20 draft horses were used to pull the 15 ton main anchor.
80 lb ft
Go with most any GM small block, you can go bigger of course but that will require some major work. i.e. engine mounts, front suspenstion and transmission with a combination of many other little thingsGeneral Engine Block SpecificationsWhile 6 different bore size blocks have been produced, the small block engine can be classified into 3 bore sizes and 3 main bearing sizes. 283 blocks (3.875" bore, 2.3" main), 302/327/350 blocks (4" bore, 2.3" or 2.45" mains), and 400 blocks (4.126", 2.65" mains). In 1968 the main bearing saddles were increased in size from 2.3" to 2.45".CIDYearBoreMain Cap26219753.6712 bolt ONLY2671979 - 813.5002 bolt ONLY3051976 - 963.7362 bolt ONLY3071968 - 733.8752 bolt ONLY3271968-694.001 (2.3" main)2 bolt3501968-884.001 (2.3" main)2 bolt26519944.001 (2.45" main)2 bolt3021968-694.001 (2.45" main)4 bolt3501968-964.001 (2.45" main)4 bolt4001970-724.126 (2.65" main)4 bolt4001973-804.126 (2.65" main)2 boltNotes: 2 bolt ONLY means just that,. otherwise 2 or 4 bolt can mean either design...
Are you referring to the main caps? If you are some had two bolt mains, and some had four bolt mains.