Quote:

---

I have a similar build, except a solid roller. My P2V clearance was .120 intake, I'll have to look at my notes for the exhaust. It was plenty. I used playdough on the pison, oil on the valves, installed head gasket, torqued to 30 ft.-lbs. Then removed, cut the playdough in half, and measured. I probably did it in a very archaic way, but that's how I have done my small block strokers as well and it worked for me.

---

Quote:

---

Quote:

---

I have a similar build, except a solid roller. My P2V clearance was .120 intake, I'll have to look at my notes for the exhaust. It was plenty. I used playdough on the pison, oil on the valves, installed head gasket, torqued to 30 ft.-lbs. Then removed, cut the playdough in half, and measured. I probably did it in a very archaic way, but that's how I have done my small block strokers as well and it worked for me.

---

Thanks, with hydraulic lifters they say to temporarily replace lifters with solids to check? Thats why I'm trying to figure if it will even be an issue. Kind of a pain to remove lifters just to check.

---

It is always better to be safe than sorry Get the tools out and switch those two lifters and check the actual P to V clearances BTW, I'm running .060 P to V on my 440-1 headed 527 motor with a soilid roller cam, good valve springs(325lbs. on the seats and 830 lbs opened) and Harland Sharp rockers I like to see .080 but I'll live with .060 until it fails

Quote:

---

Thanks, with hydraulic lifters they say to temporarily replace lifters with solids to check? Thats why I'm trying to figure if it will even be an issue. Kind of a pain to remove lifters just to check.

---

Quote:

---

Getting ready to replace heads. Going to from 906 heads to EZ-1 heads. I know I should check, but may not even be an issue? Motor is a 440/505 stroker. SRP flat top pistons. Piston deck height is .025 below. Comp XE295HL Hydraulic, 251/257 duration, 564/564 lift cam. Trying not to "over think" this, anyone have a similar build? Is this even going to be an issue?

---

Quote:

---

Quote:

---

Getting ready to replace heads. Going to from 906 heads to EZ-1 heads. I know I should check, but may not even be an issue? Motor is a 440/505 stroker. SRP flat top pistons. Piston deck height is .025 below. Comp XE295HL Hydraulic, 251/257 duration, 564/564 lift cam. Trying not to "over think" this, anyone have a similar build? Is this even going to be an issue?

---

for a person to accurately answer this question the ywould have to have the exact same engine as yourself , exact , deck height , piston in the hole , same heads and cam.

What is such a pain to pull a lifter? You have to pull the heads which requires the intake to be off , the lifters are right there , do you piston to valve check with intake off.

Don't forget you need to swap 2 springs to lightweight checking springs , there is your pain ...

---

Quote:

---

What is such a pain to pull a lifter?

---

Quote:

---

Quote:

---

What is such a pain to pull a lifter?

---

I think the "pain" is having to buy 2 solid lifters and 2 checker pushrods !!

On the bright side, you're going to need the checker pushrods anyway since your head swap is going to dictate new pushrods.

And by the way, don't even think of running those EZ's "out of the box" if you got them from ICH. At LEAST blow all the passages clean and heve the valvejob checked.

---

Quote:

---

Quote:

---

Quote:

---

What is such a pain to pull a lifter?

---

I think the "pain" is having to buy 2 solid lifters and 2 checker pushrods !!

On the bright side, you're going to need the checker pushrods anyway since your head swap is going to dictate new pushrods.

And by the way, don't even think of running those EZ's "out of the box" if you got them from ICH. At LEAST blow all the passages clean and heve the valvejob checked.

---

OK,OK I'l buy the the lifters. Know I need the checker pushrods. More worried about switching to checking springs. Heads while not being ported, are being checked by a highly respected builder.

---

Quote:

---

OK,OK I'l buy the the lifters. Know I need the checker pushrods. More worried about switching to checking springs.

---

well if ya dont swith out to the lightweight springs and use a "checker pushrod" that pushrod may fold/bend up...

What you can do is put the new head on your engine with the springs your running already on the head and put some washers in between the block and head that is the thickness of the headgasket your gonna run and snug the head down (you have solid lifter in there with normal pushrod) back the lash out of the rocker and stack some feeler gauges up for example .080's worth inbetween the intake spring and rocker snug with no lash and roll the engine over slowly before tdc starting about about 20* before and 20* after to see if the valve kisses the piston (as said go slowly) do the same for the exhaust and also take into consideration you havent put lash in yet ....a good friend of mine who used to work for yates taught me this and it works pretty well for situations like yours IMO....

also for the record I switched from 906's to indy EZ's MW with a solid roller about .660 lift and had plenty of clearance but every situation can be a little different like noted above and really should be checked!

Quote:

---

If your .025 in the hole,pistons are flycut(valve reliefs) or dished and you use a .030 to .050 head gasket with the 78cc EZ head you will not have any problems with a cam under .600 lift.

---