Archived posting to the Leica Users Group, 2006/12/29
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]i was about to write that the mouse motor's lifespan ran from 1955 through 1991 but that was a knee-jerk corvette-centric response. the original "Generation I" engines were used in various passenger cars and trucks even after the Corvette moved to a newer design. according to wikipedia, the "Gen I" was last used in new vehicle production in 2004, and 90 million have been built in its five decades. not needing to exaggerate on this record, we may concede that the Gen II (1992-1996), Gen III (1997-2003), and Gen IV (2004-present) are continuing refinements of the pushrod design but largely incompatible with the Gen I engines. The exotic LT5 DOHC which powered the ZR1 corvette was a completely different design, sharing only the small-block's traditional 4.4 inch bore spacing. probably more than you'd ever want to know: http://en.wikipedia.org/wiki/Chevrolet_Small-Block_engine -rei On Dec29 14:26, H. Ball Arche wrote: > Easy- the Chevy small block V8. It hit the streets in > 1954. > > > > > Which raises an interesting question - what designs > > of a similiar > > life-span are stll in production and still being > > revised on same > > basis? Sewing machines perhaps although they have > > had their own > > digital re-invention. What do you think? > > > > Adam -- Rei Shinozuka shino@panix.com Ridgewood, New Jersey