SBF main bearings?
 

Are the P's any or much better than standard? What do most of you ford guys use on your builds and also rod bearings also? 331 ci !

Thanks1

Re: SBF main bearings?
 

There is A-series bearings which are aluminum bored,didn't like them when they were introduced,but I take engines apart with them all time with 100K+ and they still look good, these are shiny bearings like come in all late model engines.

P-series is tin plated that has been around for years
H-series is high performance.
I usually use H series bearings most any thing I do street/strip,if you have a forged crank you have to use H series to clear larger radius on crank, H bearings are narrowed or chamfered to clear.

I have been using alot of King bearings last few years.
You can have good results with about any bearing,if have clearances correct,clean assembly, no oiling problems.

Re: SBF main bearings?
 

Speed Pro 129M series are Competition main bearings, also available Coated.
Speed Pro 8-7160CH are the rod bearings, also available Coated.

Re: SBF main bearings?
 

Thanks!

Re: SBF main bearings?
 

You might want to check the journal size on the rods - quite often the rods require a 2.100 bearing, common SBC bearings are too wide, they take a narrow 2.100 bearing such as 229CI GM v-6 - Clevite 1227P or H, or the Federal Mogul equivalent. Once in a while the stroker kits will come with the 2.000 rod journal also.