New Cam/Lifters/Chain, Fresh Rings. Rebuilt '65 273, Cam Break-In done...
Started Driving it over the weekend. Haven't Revved it passed 3000 rpm yet.
How long should I be nice to it before I can Floor-It and Shift at 5000?
what rings di u use? the break in of the rings r more important to mr
i used molly steel rings , i used a very pacific patern
first i ran it @ idle till it warmed up then ran it @100-1500 for 30 minutes, then we drove it up to 3000 rpm . for 30 mins then up to 5000 then back ti idle . & it was done . now i had 70 lbs of oil pressure the entire time . i have 30k on the rebuild & no oil usage @ all . now my motor is a rb (440) not a la small block but the rings break in would be tye same
