Originally Posted by Black Baja (Post 4308578)

Then 4-2 fire next to each other...

Originally Posted by donzi matt (Post 4308585)

If he got the cams from Bob, typically he uses the 8.1 cores and the firing order is 1-8-7-2-6-5-4-3, at least they were on mine. Tim can verify this if the cam gear retaining bolts are metric threads.

Originally Posted by Rookie (Post 4308589)

Are you running water cross overs and are the back of your intakes plumbed to dump water out of them? This helps propagate flow through the back of the head. I seized valves 6&8 3 times within 15 seconds after getting on plane. My guides were checked and honed over and over and they still failed.

Originally Posted by Rookie (Post 4308589)

Are you running water cross overs and are the back of your intakes plumbed to dump water out of them? This helps propagate flow through the back of the head. I seized valves 8 3 times within 15 seconds after getting on plane. My guides were checked and honed over and over and they still failed.

Originally Posted by mike tkach (Post 4308593)

the firing order had no bearing on this failure.tim,s new wires did not cross fire.maybe lightning struck the nearby water and caused the failure by overheating the water.

Originally Posted by Full Force (Post 4308595)

I am running the same setp I have had for 10 years with 3 different engines with zero issues.... I did not change what woked fine....

Originally Posted by Rookie (Post 4308601)

Oh my fault, I thought you rebuilt these engines with new aftermarket heads...