Got a question for anyone that knows. I have to determine the number of teeth on my flexplate, no big deal. My question is once I do this, I need to have a year to tell the guys at autozone to look up. You know how they are, you cant just say a SBC starter for 153 tooth flexplate. They would be lost. So if its a 153 what year and model, and if its a 168 what year and model? Anyone???

 

Almost forgot. I am pretty sure that it was a 168. I got a starter from a 1979 camaro, because the guy at the partstore said that it would be the right one. Hooked everything up, and when i hit the key, it just spins free. i cant be under it when it goes so i can only guess that it is missing the flexplate altogether. Any ideas. My dad was saying somethin about if it is connected wrong, that it will spin but the actuator on the starter wont come out to contact the flexplate, any one heard of this??

 

is this going on the 1987 that is listed under the info? If so, just go in and say "i need a flexplate for a 1987 chevy camaro with a 350"

If it isnt, ask for a flexplate that reflects upon the year of the block that its getting bolted to.

 

The block is a 1970's 010 four bolt main block, so i cant use the 87 flexplate.

 

Then ask for a flexplate for a 1970 350.

Application, i think that the Blazer used the 010 block. (i have a 78 "010" block and its from a Blazer, dont know what model so i say the 4wd)

 

The flex plate has to fit the engine, and the car. The engine is obviously a 2-piece rear main seal one. So if you want a 168-tooth one, you could get ot for any 85-back car that came with one; a 74 Monte Carlo 350 or something like that would get you a 14" one for sure. If you want a 153-tooth one, a 83-85 Camaro 305 would guarantee you the right one (12¾").

Get a starter for the same application.

The only posibility of an issue is, if you need a small flex plate, the inner bolt hole (closer to the crank) may or may not exist on your block. If you really do have a 78 model block, there's a better chance that it has it, than if it was say a 76 or earlier, since they had started using the 12¾" flex plate by then (my 78 El Camino has that for example.... about the first vehicle I can recall running into it on).

I'd rather use the smaller stuff in one of htese cars, as it goves more exhaust clearance; but if your block doesn't have the right hole, then you either have to change the flex plate to the larger one, or drill the hole. There's no starter that will work in that situation.

There's no way a flex plate for 86-up will work, because those would be for one-piece RMS, and won't bolt onto your crank.

Sounds to me like you have a starter for 14", but a 12¾" flex plate. There's no way that mis-wiring it will cause it to do what it's doing.

 

Thatis exactly what I said. I know that my block has three holes. Two strait across and one staggered.

 

There are blocks with 3 holes, but the inner one isn't close enough to the crank. Check carefully before you put this into the car, since it's alot easier to fix now than after it's already installed.

If the inner one on the bell housing flange is directly in line front to rear with the one that's a few inches to the front of the other 2, then it won't work with the starter for the 12¾" flex plate. If it's about 5/8" closer to the crank centerline than the other one, then it's the one you'll need.