a quick trip to the parts store, enroute to the wrecking yard, may prove worthy of the time lost if it saves you a trip to the wrecker. you may have the guy bring up a boxed starter for you to look at and compare to your old one. after checking a camaro starter vs your original starter you may be able to tell right away if it will work and if you wanna do that swap. THEN make the trip to the wrecker for a test starter or simply by the new one at the parts store and save that time walking. if it doesn't fit you can always return it if you didn't connect it. another thing to ensure is the drive and whether it will work with the ring gear you have. check the number of teeth on the drive for the starter that works with your existing flywheel and then do the same for the new starter.
one thing to watch for is the starter mounting. some have a long and a short bolt, so one mounting "ear" is shorter than the other. this means that under a hard load the front housing on the starter can be put under a lot of stress, causing the housing to crack and break. this can also cause the engine block to crack and break. likely more common on alumnium blocks but something to be aware of for sure. it is a fairly common issue so you could google it for more info
here is a link that has some pics of that failure and also some starter info.
https://ls1tech.com/forums/generatio...ls1-fbody.html
here is a link that shows a few starter differences.
https://ls1tech.com/forums/conversio...fferences.html