Flywheel -- 153 tooth vs. 168 th
Thread Starter
Racer
Joined: Oct 2000
Posts: 487
Likes: 1
From: Aloha, OR, USA
Flywheel -- 153 tooth vs. 168 th
How do I tell which I have (without marking and counting I mean). I think you can tell by if you have offset mounting bolts, but which is which? My bolts are offset from each other, the one closest to the block is towards the front of the engine from the other.
Engine is original 454 LS4 engine.
Anyone know?
Engine is original 454 LS4 engine.
Anyone know?
Burning Brakes
Joined: Aug 2000
Posts: 925
Likes: 1
From: LT1 and LS5 Coupes... New Orleans, LA
Re: Flywheel -- 153 tooth vs. 168 th (john73bb)
You should defintely have the 168 tooth as did nearly all big blocks. Check your bellhousing number, it should end in 621. The 153 tooth flywheels used bellhousing 403.
Instructor
Joined: Jan 2000
Posts: 227
Likes: 0
From: Tyrone, Pa
Re: Flywheel -- 153 tooth vs. 168 th (john73bb)
As luck would have it, I am at school right now, but brought my 153 tooth flex plate to school to have one of the auto shop kids file the burrs off the teeth before I need to sandwhich it between the tranny and engine going in my current project 86 Trans AM. (Its gonna be a summer street/strip car and winter hack, as well as back up alternative to my preferred C3)
I'm pretty sure that when I was doing the same comparative research, that I found that the two flex plates have different diameters. The diameter of my small block 153 tooth flex plate is 12 3/4" from the top of the teeth or from extreme outside to extreme outside. I snapped a pict of the flex plate I can directly send you if you would like. The pict shows the plate with the ruler on it with the engine side facing up, with the tranny side facing the counter top.
Hope that measurement is the info your looking for.
Be cool!
"TEACH"
I'm pretty sure that when I was doing the same comparative research, that I found that the two flex plates have different diameters. The diameter of my small block 153 tooth flex plate is 12 3/4" from the top of the teeth or from extreme outside to extreme outside. I snapped a pict of the flex plate I can directly send you if you would like. The pict shows the plate with the ruler on it with the engine side facing up, with the tranny side facing the counter top.
Hope that measurement is the info your looking for.
Be cool!
"TEACH"
Thread Starter
Racer
Joined: Oct 2000
Posts: 487
Likes: 1
From: Aloha, OR, USA
Re: Flywheel -- 153 tooth vs. 168 th (73 Teach's Pet)
Thanks Teach, now all I gotta do is pull the tranny so I can measure it :) I remember having it apart when I put the engine together, and it seems like the wheel was bigger than 13". I also found a website that says that the offset hole starter is for the 168 tooth wheel so I guess that is what I have.
Thanks for the replys.
Thanks for the replys.
