283/350 main brg?
 

Does anyone other than clevite make a main bearing to put a 283 crank in a 350 block?
Clevite only has one at standard and standard cranks are getting few and far between.

Re: 283/350 main brg?
 

here is bearing spacers
http://www.raceeng.com/p-7689-bearin...27-to-350.aspx

Re: 283/350 main brg?
 

Doesn't King still make spacer bearings? Thicker bearings, no spacers needed.

Re: 283/350 main brg?
 

I called king today and they no longer have anything for large to small journal conversion. I dont think I like the idea of spacers either. My current engine has clevite mains and is currently fine but for the future maybe an aftermarket 3.0 stroke crank or go back to a 283 block.

Re: 283/350 main brg?
 

The spacers will be fine if properly fitted. I have built motors with spacers for dirt track racers who have literally worn out the blocks with no problems. If those guys can't beak it, it's gotta be tough. Heck, I have even used an old set of bearings in the large journal block and align-honed it to fit with no problems. I always locked the spacers in place with Loctite stud and bearing mount and/or roll pins and never took them out after align-honing.

Re: 283/350 main brg?
 

I agree with Dwight......I have used spacers that we made from std. bearings in a 400 block to install a 350 crank for a 377's. We line bored the bearings to size. I went thru the trouble of drilling thru the bearing spacer into the main saddle and tapping the hole for a machine screw. I used countersunk headed screws and ground them down to be sure they sat below the surface. Never had a problem using those for myself or my buddy and he really rpm'ed his stuff!! His motor generally saw 8200 on every run.....

Re: 283/350 main brg?
 

No problems with spacer bearings here either. Been using them for about 15 years with a 327 crank in a 350 poured block. Engine turns between 9500-10,000 rpm thru the 1/4. I use the ones from Race Engineering made fron ACL bearings.

Re: 283/350 main brg?
 

SCOTT
Do you install the spacers directly in the block as is?
Sounds like I should buy a set and not worry about it.

Re: 283/350 main brg?
 

Pretty much as they come. I do check the slots where the bearing lock tang sits in the spacer. I sometime have to file the slot a little for the bearing to fit the way I like. I torque the main caps in place with the spacer bearings just to double check the bore to make sure there is not a problem. I then install the bearings and check my crank clearance. I've used several sets without any problems.

Re: 283/350 main brg?
 

Usually you have to have a line hone done to the spacers, then they stay with that block in order of placement, makes future freshening easier.

Patterson sells them too....usually in stock