Oops ! Sorry people for the band width without posting removal.....
Hey Tom Hendricksen,
The Stock heads were about 4.528" or 115 mm . This engine stock is 9.5
to 1 ,so Super Unleaded is
needed on a Fresh and or healthy engine . If you have cut .020 to .030
cut from bottom only in past ,you were closer to 10 to 1 and you must
use super ,unless serious chamber work is done . This is something I
learned to do more than 30 years ago on a U-20 . I also recommend that
you have Steel type intake seats installed ,due to pounded out brass
ones and the fact we only have Unleaded now . Rocker arm Geometry issues
and cam stand shims are the norm for old used and previously heavily
warped 2-liter heads . Dean and Dann can enlighten you if you wanted
more opinions and info .
Steve Ehlers
Rising Sun Performace Inc.
Texas's oldest Datsun Z car Specialty Shop
________________________________________
datsun-roadsters@autox.team.net
Archive: http://www.team.net/archive
Unsubscribe:
http://autox.team.net/mailman/options/datsun-roadsters/mharc@autox.team.net
|