409 Stroker build

[Mongo]

Im putting my 474ci 409 together and I thought it might be interesting to post some pictures and progress updates. I took it apart a year ago and found that my solid roller cam had walked back and started to wipe out a few lifters and the cam gear walked into the block.030 of course some of the block material got into the main bearings enough to score the crank. I was able to polish my crank . Got new pistons, Cam, lifters. Bearings, Oil Pump, .005 under timing set and Torrington Bearing . I checked my valve to block clearance last week and today I installed my cam bearings and cut a small groove into the front bearing to supply a little oil to the Torrington Bearing

 

[La Hot Rods]

Just thinking outload, I would drill a hole in the lifter galley plug myself.

 

[63 dream'n]

If you use the search engine there’s quite a bit of information or conversations on this problem

 

[Mongo]

Installed the crank and cam today to see how much I will have to Machine off of my cam gear

 

[Mongo]

Ok the next step is to put it in my Lathe and cut it down until both sprockets line up

 

[fourzeronine]

So, you clearanced the block for the Torrington bearing yet are having to machine the back of the timing gear for it as well? Why not instead just take all the material off of the timing gear and leave the block in its original state?

 

[Don Jacks]

The block surface was damaged is the reason for the block.The torrington bearing set that Bob Walla sold me went into a stock unmachined block perfectly.Must be a difference in the manufacture of the parts that he has.If the parts are right there's no reason to machine the cam gear especially since he had the block cut.

 

[Mongo]

fourzeronine
I did not clearance the Block . As I stated in my original post the cam walked into my Block .030 so I just cleaned up that area enough to accommodate the OD of the Torrington Bearing and since the Torrington Bearing is much thicker than .030 I must now machine the difference off of the cam gear.

 

[Mongo]

This is how much I have to Machine off of the cam gear

 

[Mongo]

Getting there

 

[Mongo]

Final pass

 

[Mongo]

All done and everything lines up perfectly. Just have to get a small ball End mill and cut the oil slinger groves back in

 

[dakota tom]

The bearing should have washers on both sides. Oil groves not needed. Just would be ways for oil to escape and not lube bearing.

 

[Mongo]

I think that I will put them in anyway. I do believe that it will allow additional oil to the Torrington Bearing as the original purpose was to get oil to the block cam gear surface. Either way it surely can’t hurt

 

[Mongo]

The next step will be to clearance the block. My stroker had no problem with the forged steel rods that I put in there 20 years ago but I decided to upgrade to these Eagle H Beam rods and I’m pretty sure that I’m going to have some clearance problems

 

[MRHP]

I usually leave .060 clearance for rods/rod bolts to pan rail.

 

[Mongo]

Thanks MRHP I was wondering what would be acceptable for clearance in that area

 

[Don Jacks]

About the same as for rod/cam clearance [.060] where needed.

 

[Mongo]

Thanks guys it’s great to have all of your knowledge to help me out

 

[Mongo]

Finished the Cam gear