Valve question

Guys my engine has 1 piece valve guides and non adjustable lifters should I toss them and get 2 piece guides and adjustable lifters.
 

No, keep the one piece guides, the two piece ones were used with the mushroom valves.
You can get the adjustable lifters tho, makes it a lot easier to adjust the valves.
 
(quoted from post at 20:17:25 03/21/17) Guys my engine has 1 piece valve guides and non adjustable lifters should I toss them and get 2 piece guides and adjustable lifters.


It's called mission creep and there is no cure . You really want rotating exhaust valves at this point in the game , LOL . Ford found out early on that the exhaust valves were prone to burning , rotating fixed the issue . If you are not going to work the snot out of the N it probably won't matter .

My 8n is down , not because of the knocking at start up from a bad oil pump , the high oil consumption , or the blow by from the worn rings . Even with the blurry pic you can see the cracks in the valve .

 
Yes get adjustable lifters..rotating valves not necessaey..Mt Dad's 2N has been worked hard all its life and never had valve issues--engine rebuilt once 20+ yrs ago-still going strong..
 
I ran an automotive machine shop for several years, rebuilding many N blocks. You'll want to adjustable lifters, otherwise it's grind the stem, grind the seat, grind the valve face, then do it again and again until you get the proper clearance. Adjustable lifters work well on straight or mushroom valve stems. Stick with the one-piece guides. The split guides were for the old mushroom-stemmed valves. DO NOT put valve rotators on! No-lead gas means no lubrication between the valve face and seat, and rotators cause everything to wear faster. That's why we put hard seats in old engines, otherwise the valves disappear into the block or head.
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