I just got aan 86 camaro when bought had a smoking 305 in it. I replace with a small block 400 and after 2 weeks of working on thought was ready for street and strip. Now my problem...I have replace starter 3 times. Every time starts okay for about 5 or six times then start having problems. Starter doesnt seem to want to engage. I can click key over 5 or 6 times and it grinds or misses then finally catches. Anyone had same problem that maybe can tell me how they fixed this problem. Have been told that there are 3 different starters to this motor but my parts stores in my town only show one. HELP PLEASE!!!!!!!
Buy a shim kit and shim the starter out a little. Sounds like the starter pinion gear is too close to the flywheel gear.
There should be .030" clearance from the tip of the starter gear tooth to the root of the flywheel ring gear tooth.
If the flywheel gear is all chewed up you may need to change it. Auto transmission shops are good a doing it if you don't want to tackle it yourself.
I have done that. Starter seems to be out too far not deep enough in the flywheel. I think I have a compression problem. I have 58cc small chamber 305 heads on it that I have drilled for the steam holes.
I would get a mini starter for it, they work great, try Summit.
Even if the starter is too low a power for your new engine, it should not be having trouble engaging.
Try bypassing your neutral safety switch (if you have an automatic) and see if it works better.
I have a farm and many pickup trucks that we see a lot of neutral safety switches wear out due to the dusty conditions.
The solenoid cannot engage well or not at all due to the poor connection.
Sometimes you can jiggle the shifter to help it make contact.
Make sure your battery cables and grounds are clean and tight.
if you think your starter is not in deep enough you can fill on the flat base that rests on the engine to get it closer if you go to far then use shim kit to bring it back out . you said you used 305 heads do a compression check if it reads above I think its 160lbs you will need a after market starer you didnt put the battery in trunk did you if so you will need 1/0 welding cable to get enough current to starter to be useful also a extra ground strap say off the tranny to frame might help many moons and a lot more octane ago I had a 12.5 355 I ran on the street one thing did was put a on off switch in line with + lead to coil then when you hit ignition you let it crank a little then hit the toogle and it would fire off the idea is to get the engine spinning with out a load the ignite it a little mickey put cheap
Thanks for all your help guys but I think I found my problem. I had a blown head gasket and as we all know you can't compress water. So I replaced gaskets and so far so good. I will keep you posted though.