Originally Posted by oldchevyguy
i just had my 1959 235 rebuilt the rebuilder said brake in with 20w and the the aditive that patricks sells/ and one more apinion because there free.thanks


If I was getting ready to start up a engine rebuilt by a professional rebuilder, I would ask them what they recommend. This way, they cannot point a finger at your bad choice of break-in lubricants.

Nonetheless, Patrick sells a ZDDP compound (Z D D additive, he calls it). If you like Patrick's recommendations, use Valvoline VR-1 oil. Rotella T 15W40 diesel oil (as recommended above) should work fine in combination with a ZDDP additive (for break-in).

http://www.patricksantiquecars.com/chevy_parts.html


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.