Lykins Motorsports 438W Build

[blykins]

Picked up block yesterday and knocked in the cam bearings. Started a little prep work today.



Here's an area that needs to be addressed on every Dart block I've used:



The counterweight on the crank will inevitably rub one of the oil passages going to the #4 main bearing and sometimes on #2 and #3. I usually slather the whole area with a Sharpie marker and I get a good witness mark. Then comes the die grinder...

More to follow...

[jhv48]

Originally Posted by blykins

Picked up block yesterday and knocked in the cam bearings. Started a little prep work today.



Here's an area that needs to be addressed on every Dart block I've used:



The counterweight on the crank will inevitably rub one of the oil passages going to the #4 main bearing and sometimes on #2 and #3. I usually slather the whole area with a Sharpie marker and I get a good witness mark. Then comes the die grinder...

More to follow...

So that was the clanking noise I heard on my previous engine.

Eventually went away!

[blykins]

Doesn't take much....hit the 3 center bulkheads with a die grinder...



Did a lot of checking...

Checked piston/cylinder clearance. Checked deck height on four corners.

Also did a little oil pump feed hole gasket matching...



Broke all the rods down from where I had checked rod bearing clearances, and I'm dropping the rotating assembly off tomorrow to be balanced.