P vs. H series bearings, which should I use?

[goliath]

I need opinions...

I'm currently rebuilding the bottom end of my engine. I'm replacing the stock rods with Eagle, the pistons with Probe and the bearings with Clevite. The Machine shop I'm using recommended H series bearings, but when I ordered the bearings from Titan Motorsports they recommended P series since I was not running a billet crank.

Not being an experienced builder, I would like to know what some of you have done and how it has worked out for you.

Some questions:

Which series did you use?
How much power are you putting down?
How many miles are on them?
If you did it again would you use the same series? Why not?

 

[goliath]

WOW....no one has an opinion on this?:dunno:

 

[IJ.]

You won't get either, your Clevite box will contain NDC bearings.

 

[a_sesshoumaru]

NDC bearings are awesome, they really take a beating with no problem. Too bad there is no ACL racing bearings for our car, they look to be different.

 

[aljordan]

When I looked in the clevite catalog, I only saw the P series. CB-1437P for rod bearings. MS-1774P for main bearings. You'll also need the thrust washer set, TW-228S.

Really.. I'm a huge fan of toyota bearings. I've never had an issue with them.

 

[IJ.]

AL: Clevite no longer make M series bearings they rebox NDC's.....

 

[goliath]

So as anyone had any concerns using the CB-1437P and 1774P bearings.

I'm asking because my machinist is telling me I need H series bearings since the stock crank is forged. Unfortunately his knowledge of import motors is not nearly as vast as his domestic knowledge. His, "this is what I've always done" statement is making me question if i have the right series of bearing.:1zhelp:

 

[GrimJack]

I've used both the regular NDC and the reboxed clevites without any issues. I wouldn't lose any sleep over it if I were in your shoes.

 

[suprarich]

The worlds most powerful 7mgte uses Clevite "P" series (NDC) right out of the box and turns nearly 9800 rpms on them with nearly 1400hp. Tell your machinist the P series will work out ok. No one makes a H series or race series anymore that I am aware of.

 

[goliath]

Thanks for the feed back guys!:bigthumb:

I felt I had chosen wisely, but his comments put a doubt in my mind.