We are trying to figure out a 408 build and were wondering about valve clearance. For you guys who have built one and are in the know, what do you think the PTV of this setup might be:

-29cc pistons
234 duration/ .619 lift
2.08 valve
AFR 225 head

Any educated guesses on whether this will work?

 

I don't have a guess on what the actual PTV clearance would be but I don't see why you would have any problems with that set up. Should have more than enough clearance.

 

Thanks, I don't expect that anyone would know the actual clearance, just whether they thought it might work based on what they have seen done.