experienced build help needed w/ head min. clearance

[Clip]

after paying $850 to the machine shop, i've got my block back but learned that the rebuilt head i got (cylinder heads int'l) is below the min. clearance, which i was told is 4.560 in. at one end mine measured 4.555 in and the other side measured 4.545 in. is this going to cause interference with the pistons/valves or otherwise do harm?

do i need to call and get another rebuilt head?

 

[jmanbball]

What are these measurement's referring to?

 

[FullNelson]

If the head is still useable, can you use a larger HG?

 

[IJ.]

The deck is getting very thin at that point so for a maximum effort engine I wouldn't use it.

As noted you can adjust with a thicker HG.

 

[Clip]

The deck is getting very thin at that point so for a maximum effort engine I wouldn't use it.

As noted you can adjust with a thicker HG.

IJ, this wouldn't include a stock daily driven NA that's being refreshed top to bottom, would it?

about how thick a head gasket should i look at to keep normal compression ratios, and do i need a thicker one so my pistons do not hit my valves?

 

[IJ.]

For an NA no probs at all!

How much has been removed from the deck?
(Your head only has 20 thou removed from stock?)
(new = 4.566")

 

[Clip]

he didn't write it on the work order, i'll call monday. block wasn't warped and it's the first time it's been resurfaced, i'd guess 10 thou over? what's the smallest amount usually taken off?

 

[IJ.]

Who told you 5.560 was the limit?
(I had to go look up what new was)

At 5.545 I'd run a stock gasket and ignore it

 

[Clip]

he told me that's the minimum thickness of the head, had it jotted down on there with marker.

so i'm free to go, officer ?

 

[IJ.]

If your measurements are accurate yes!