[hmaster]

Just swapped jugs/pistons from kb 10.5:1 hypererctic to 10+ flat tops put all back together and have spark both plugs and fuel on plugs but won't fire. reversed plug wires and got a pop. Racking my brain on this.

 

[misinlink]

Did you put the push rods back correct?

 

[gtrman66]

Did you put the push rods back correct?

^^^this.

Or, you got the cam in 180 out.

 

[SCHMIDTY]

I would do a compression test to verify correct part size and installation.