i have a 88 iroc 305 tpi with a 700r4. i bought a 355 2 piece seal and they told me to get a internal or neutral balanced fiywheel does any one no how many teeth i will need so i can order from jegs or summit

 

all SBC except the 400 were internal balanced. the SBCs with a one piece crank seal had a weight attached to the flex plates, but it didn't change the fact that they were internal balanced. i always get the teeth count screwed up, but i'm think 168. i'd just call and let them figure out which one you need. all you need to know is the engine and a year, and with 350 you can say anything before 86 and be good.

 

Stock Flywheel is 153 teeth for your engine.

 

thanks,just called jegs and got what i needed