SBF main bearings?

[BLIND MULE]

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

[Mike Taylor 3601]

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.

[Glenn Hayes]

Originally Posted by BLIND MULE

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

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

[BLIND MULE]

Thanks!

[pmrphil]

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.