Stuart wrote
My understanding is that Boston Bob is in the process of developing a
'half
Lilley' offering that may be available soon.

Stuart and the list
the cost of a stock rebuilt engine is $2050 plus core at Boston Engine
at least as long as my main bearings supplies hold out
I am at this point selling 1.9& 2.1 engines with head and camshaft
upgrades
The 1.9 & 2.1 engines are assembled with the 2.1 heads. The head work
includes mild porting behind the intake valve and some reshaping of the
chamber. I also use the serti style cutters for cutting the seats and
because they are a blade instead of stones I can shape the seat with a
radius below the valve and in doing this improve the air flow all the
way threw the valves opening and closing. the intake port now flows at
350ths the way it did at
450 ths with the stock port.
I am reginding new stock 1.9 cams to the 2.1 spec for the 1.9  engines.
In the 2.1 engines I am offering the lilley cam and lifters
Bob Donalds
http:www.bostonengine.com
as always
all right reserved