So I think I’ve been laboring under a couple of false assumptions, if anyone could clarify a couple things for me I would appreciate it. I always thought there were just the two factory motors, the 256 and the 447,
but according to this post there are four? My ‘72 since it has a crank with a starter gear makes my motor a 306?
And a 533, I never even heard of. Never mind the rephase motors, I get that.
Here is another thing I’ve apparently misunderstood. I knew the 256 motors had longer rods, so I thought they also had a longer stroke, although now that I’m thinking this through, the stroke wouldn’t change, only the cylinder volume. Anyways according to this, all motors have the same stroke.
So what I’m wondering, if the stroke is the same and the crank is the same 360 degrees, then is the only difference between the motors , the cam profile? Because my XS2 and my 77D feel completely different.
Are there any other fundamental differences?
but according to this post there are four? My ‘72 since it has a crank with a starter gear makes my motor a 306?
And a 533, I never even heard of. Never mind the rephase motors, I get that.
Here is another thing I’ve apparently misunderstood. I knew the 256 motors had longer rods, so I thought they also had a longer stroke, although now that I’m thinking this through, the stroke wouldn’t change, only the cylinder volume. Anyways according to this, all motors have the same stroke.
So what I’m wondering, if the stroke is the same and the crank is the same 360 degrees, then is the only difference between the motors , the cam profile? Because my XS2 and my 77D feel completely different.
Are there any other fundamental differences?