I Have 2 sets of AFR 335 from 2009 and 1 set that are 9 months old . At 20 hrs the seats are shot in all 3 sets of heads. Switching g all of them for beryllium seats right now

Just talked to Bill he said same thing, he thinks it will be ok but if I wanted to run additive he said it won't hurt at all, that seat you posted looks very sunk, maybe that one was a bad casting? I am at the point I have to roll dice, already too deep into this to change now... It's not like they won't be apart next year for some f in reason lol

Then there my buddy cig with 600+ hours on his 600's going strong... I guess it's a 50/50 shot..

It's looking like I am sticking with hydraulic and going shirt travel, saves me lifter and pushrod cost since I can most likely keep base circle the same..
I do t have endless funds or I would do seats and solids and other things, I prefer to just run them until they break again

Tim, with all the issues that you have had, I would seriously consider the seat upgrades, (yes I understand the continuing Cost issues, and truly feel for you) but also consider that when the exhaust valves begin to leak, you will increase the odds of reversion then it will snowball into more issues. I can't remember if your exhaust is wet or dry..Just another angle to consider.

too late, moving forward... exhaust is dry to tip... if they break they break.... I honestly don't even care anymore...

Yeah Tim I understand! I get it! Sometimes you just have to draw the line. I wish you the best, you deserve a break for sure!

Thats a good point. When the exhaust valves start leaking , reversion is highly likely. Tim isnt running a full dry exhaust, still has rubber couplers inside the transom. Cold water on hot valves , is never good either.

actually Mercruiser in the 1980's and up till the mid 90's recommended a lead substitute mixed in the gas for V-6 their engines. They sold it as well made by golden eagle up till 2001 or somewhere in that timeframe.

I am actually in favor of running a 120 to 1 of 2 stroke motor oil for marine I/O and inboards all the time. Adding lubricity to the fuel has some positives effects. On top of, I actually see fuel injectors in better shape internally from customers who use it even carbs internally have shown to be in better shape down the road (marine apps). IMO OEM electric fuel pumps in marine apps seem to hold up better as well having a bit of lubricity all the time.

You need a comfy seat

Relax, and don't make any decisions all pizzed off.