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Adger Smith · 03-02-2013, 09:22 PM

Correct Dave.
The flywheel on the one piece crank is smaller on the hub and has a smaller bolt circle it also has what is called a "Butterfly weight"
That weight replaces the "Ear" that is on most 2 piece seal cranks out side the seal surface. That ear is usually weight that is in line with the rear counterweight. The ear is cut off on the 1 piece cranks. They are full round in that area.
The balancer end of the crank is neutral balanced.
Rob the small is OK

03-02-2013, 09:22 PM	#13
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: sbc harmonic balancer Correct Dave. The flywheel on the one piece crank is smaller on the hub and has a smaller bolt circle it also has what is called a "Butterfly weight" That weight replaces the "Ear" that is on most 2 piece seal cranks out side the seal surface. That ear is usually weight that is in line with the rear counterweight. The ear is cut off on the 1 piece cranks. They are full round in that area. The balancer end of the crank is neutral balanced. Rob the small is OK __________________ Adger Smith (Former SS)