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[Dan_Lockwood]

I'm looking at a motor that's a 96" on eBay, but they say it's been bored out to 103".

Can the 96" accept straight bolt in 103" cylinders?

What is the max a 96" can be setup to run without case boring?

Thanks.

[hd-dude]

I'm looking at a motor that's a 96" on eBay, but they say it's been bored out to 103".

Can the 96" accept straight bolt in 103" cylinders? Yes

What is the max a 96" can be setup to run without case boring? 107 using stock barrels or 110" using Harleys new barrels and pistons

Thanks.

[Dan_Lockwood]

Jim,

Thanks a bunch.

My next project I plan on using a 96" or 103" "B" motor because of the smoother counterbalancing etc.

This is not going to be a high revving application.  It will be mounted in front with the crank running lengthwise to the reverse trike.  I'll have a comp or sorts from the crank to the input of a Mazda Miata 6 speed.  I'll be relying more upon lower end torque for driving rather than the higher revs on a motorcycle.

If I were to bolt in a set of 110" pistons and cylinders, could I use the existing '96" heads?  I know that they may have smaller valves, but that might actually help with a bit more low end torque.

I think I had a thread once about changing out to a larger bore on a "B" motor.  I was worried that by going larger, the counterbalancers would not be the correct weight to balance the new larger bore.  But I believe the consensus was that I could do the larger bores with the "B" balancing without having to worry about changes in piston weight.

Does that make sense?

Thanks again.

[prodrag1320]

all TC cylinders are the same (except for bore size),so 88" can be bored to 95" or 98" & 96" can be bored to 103" or 107".