u/FordM_1970

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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!

u/FordM_1970 — 17 days ago