SUHRsc
Well-known member
I used a crude measuring cup to try to figure the CC's of the 81SB heads over the weekend. I filled the cup with 60mm of fluid and then poured into the leveled cylinder head with a spark plug in it... All of this liquid went in and it was very close to running over. So I would say its probably somewhere around 60-65cc. Pretty much where the 81AS are listed it in my opinion.
Zach
Zach