Page 1 of 1
Identifying a 968 Crankshaft
Posted: Wed Jul 10, 2024 9:11 pm
by Jotronic
How do you do this? I’m about to buy one but there are no part numbers on our cranks, just casting numbers. Is it something that can be identified from a photo? @Tom , do you know? I’m starting the parts accumulation phase for a 2.8 stroker and can’t afford to get this wrong.
Re: Identifying a 968 Crankshaft
Posted: Thu Jul 11, 2024 7:33 am
by Tom
I have one of each out in the shop. I'll see if I can get you some tell-tale measurements.
Re: Identifying a 968 Crankshaft
Posted: Thu Jul 11, 2024 7:51 am
by Jotronic
That would be fantastic, @Tom . Thank you. If there are any visual indications as well, please share that too.
Re: Identifying a 968 Crankshaft
Posted: Thu Jul 11, 2024 8:31 am
by Tom
Thinking about it, the 3 liter crank I have is probably an S2. Are you trying to distinguish between and S2 and a 968 crank, or just between a 2.5 and a 3.0 crank?
Re: Identifying a 968 Crankshaft
Posted: Thu Jul 11, 2024 8:47 am
by Jotronic
968 and S2.
Re: Identifying a 968 Crankshaft
Posted: Thu Jul 11, 2024 8:49 am
by Tom
Got it. I think there is a weight difference between the two. @Thom posted about that in the past. He may be able to confirm.
Re: Identifying a 968 Crankshaft
Posted: Thu Jul 11, 2024 9:48 am
by Thom
The 968 crank is slightly lighter than the S2's, like 25 kg instead of 27.5 kg. I would still not recommend dropping one on your foot.
I would not know about possible visual differences as I never really paid attention.