Last week I asked about mixing and matching the cranks, pistons and rods
between a 289 and 302 sized motors. The use of the shorter 302 rod with
a 289 crank was not deemed to be a good idea because it puts the piston
down hole 0.065 inches. Seemingly small but apparently important in
squish. But when I look at a combo made for a particular engine, say
the 289, virtually everyone of the piston makers use something other
than the zero deck height compression height of 1.6135 inches. Most
sell their pistons at 1.60 inches which also puts the piston down hole
by 0.0135 inches. Is that a significant amount? I did sample a number
of products and one was 1.608 which is closer.
What's good?
mayf
_______________________________________________
Land-speed@autox.team.net
Donate: http://www.team.net/donate.html
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
|