quick question...? Is it possible to change out the push rod tubes with new stock ones without removing the cyllinder heads.? 1600 cc.

Not with a stock solid tube. There are complicated two piece replacement tubes available, but they tend to leak.

I have Scat blue tubes and the minute I started up the engine they started to leak.They do have some anodized gold ones a much higher spring pressure that I think would be less likely to leak because the plastic ones don't have that much pressure.So I think the gold tubes would be the way to go personally but I will warn you they have a really strong spring.

quick question...? Is it possible to change out the push rod tubes with new stock ones without removing the cyllinder heads.? 1600 cc.
It is but your much better off with the other style, The adjustbale ones often leak

So do you recommend stock ones or the stainless ones as an alternative as 3 of my plastic ones leak?

It's been said before, but let me add my 30 yr. experiece "two cents worth"... use the original stock tubes, all the rest are unreliable.

It's been said before, but let me add my 30 yr. experiece "two cents worth"... use the original stock tubes, all the rest are unreliable.
:iagree:
I would just go ahead and pull the heads(it isnt that hard) and put some original ones in there that way there we be less a chance of them leaking.