PDA

View Full Version : Bearing Clearance


black t/a
03-23-2009, 11:25 PM
What main and rod bearing clearances are you guys running?
My95Z
03-24-2009, 12:10 AM
Really depends on what the motor is built for. I'm running .0021 on all the rod bearings. My #1 main is at .0026, #2-4 are around .0021, and #5 is around .0031. I would have ran the main bearings a little closer looking back at it, but haven't had any real problems with it and I beat the crap out of this engine.
black t/a
03-24-2009, 01:03 AM
Its a 355 LE2 h/c, with forged eagle rods and weisco pistons. I'm planning on running, at max, a 200 shot.
My95Z
03-24-2009, 09:19 AM
I'd keep all the rods around .002, a little more on the mains (2-4) with even a little more than that on the front and especially back main, keep it closer to .0025.
formulafireman93
03-27-2009, 08:39 PM
ask ur local machinist not a bunch of guys on a forum
Z28pr0jekt
03-27-2009, 08:51 PM
ask ur local machinist not a bunch of guys on a forum
A handful of guys on this forum probably have just as much if not more knowledge about the clearances than your local machinist. The whole point of this forum is for questions like this.
MeanGreen94Z
03-27-2009, 09:30 PM
if i may direct you... http://www.ellweinengines.com/ GREAT builder, i would consult him on ANYTHING LT1 related as i see he knows his stuff and wouldnt stray you wrong! karl is a great guy, i have talked with him numerous times
My95Z
03-27-2009, 10:32 PM
ask ur local machinist not a bunch of guys on a forum

A lot of local machinists are for a lack of a better term, idiots. I've had problems before and looking back I wouldn't trust these people to screw in a light bulb. I'm not saying they are all like this, but its better to be safe than sorry and have multiple opinions.