







Alright I’m back again with very specific oil viscosity and clearance questions.
Condition during this was about 3 degrees Celsius/ 37F in the garage and the engine and parts are probably a bit colder.
The plasti gauge has been sitting g on the shelf for some time.
So got new bearings installed on the mains and torqued the crank down .
Mains are a solid 0.002 for all 5.
Last two photos are two rod bearing clearances I checked. Cylinder 1 and 5
They are 0.0015-0.0018. Definitely believe they are closer to 0.0018
My initial worry is that’s two tight however ford specs for a 95 351W are 0.0015 desired on a STOCK ENGINE
Recommended oil was 5w30 for 1995 but I also believe that was changed from 10w30 for emissions
This is not a stock rebuild. This is a completely stick bottom end but there will be a TINY bump in compression due to the aluminum cylinder heads. 4 barrel carb and Edlebrock intake so it will be more powerful than a stock engine but not exceeding 5500 RPM
My question is this too tight or just right? Gigity.
I see everywhere everyone’s recommending bigger clearances, but if oil pressure is correct and the motor is not being overstressed in extreme applications, I don’t see the reason or necessity for it. But if I’m wrong, please tell me.
Sorry for the long read! Thanks for your time!