Hi Terry,
I had my block line bored & cam bearings installed last year. The 
bearings we're sourced from BPNW but as was stated TRF has them as well. 
They are basically a broken set from a spit motor. Most machine shop 
boring machines are capable of boring  a four piston deep block as in an 
american 8 cylinder. The majority of machines can't accommodate the 
depth of the bore. There are machines or modified machine out there that 
will work , you have to call around. TRF even out sources line boring 
but they would not tell me where they send it, besides the shipping to 
PA would be a killer. Make sure you get the specs for the machine shop 
on what size to make the hole. These are an interference fit & must be 
done properly. I had a tough time getting that size & I'm not even sure 
the shop used the size I gave them. When I was looking, some machinist 
recommended finding a shop that works on Italian automobiles like 
Alfa's. Their 6's use cam bearings so the shops should be set up for it 
but I'm by no means sure about this.
-- 
Mitch Seff
Oceanside, N.Y.
75 TR6
http://www.angelfire.com/ny4/triumph5/ 
 
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