I have a 67 camaro with a 406, 400 block, when i bought a new startre i just guessed at where the engine came from, i believe i told them (auto zone) 75 truck, how ever i dont think this is correct, ive broke 3 strartrer nosees in the last 2 days ..the number on the starter is dl3510s. idont know the size of the flywheel, so im guessing thers another offset bolt startrer that came on a car with a diff size flywheel..anybosy have a guess?...

 

Count the teeth. 153 flywheel = starter with aligned bolt holes. 168 teeth = starter with staggered bolt holes. With a 400, you should have the large 168 tooth flexplate.

Look at the bolts themselves. The threaded tips have a smaller diameter and can get bent on a kick back. Roll the bodies on a flat surface and see if the tips wobble.

The shanks of the bolts serve to locate the starter nose, kind of like dowel pins. The 1st 1/4" or so of the holes in the block are unthreaded to serve as a register. Make sure you have the correct lenght bolts. The shanks of the bolts should stick thru of the the starter nose casting a little. If not, the starter nose kicks around and damage to it or the flexplate results, as it will from crooked bolts.

If you need the special knurled shank starter bolts, you can find them in the Help section of the parts store. There is an excellent page online on how to shim a starter properly with a 1/8" drill bit or rod, but I can't seem to find it for you.

Last, if you are getting kick backs, make sure the block area where the starter bolts on is unpainted. This is where the starter gets it's ground.

 

check timing as well, too advanced can cause kick backs that can break the nose cone after a start or two

 

thanks