318 Heads: bad valve job?

Hey guys, sorry it took me so long to get back!
My tools took too long to get here.

So, I remeasured everything, and I'm not very happy.

This is going to be a long one, sorry for that.



Purple: lowest installed spring (per head)
Orange: lowest valve stem tip (per head)

Green: highest installed spring (per head)
Blue: highest valve stem tip (per head)


Driver's side head:
Cilinder n1:
Intake: Spring Height: 1,636"; Stem Tip Height: 1,878"
Exaust: Spring Height: 1,670"; Stem Tip Height: 1,915"

Cilinder n3:
Intake: Spring Height: 1,640"; Stem Tip Height: 1,883"
Exaust: Spring Height: 1,645"; Stem Tip Height: 1,879"

Cilinder n5:
Intake: Spring Height: 1,647"; Stem Tip Height: 1,886"
Exaust: Spring Height: 1,631"; Stem Tip Height: 1,895"

Cilinder n7:
Intake: Spring Height: 1,630"; Stem Tip Height: 1,874"
Exaust: Spring Height: 1,664"; Stem Tip Height: 1,907"

Largest Spring Height Difference: 0,040"
Largest Stem Tip Height Difference: 0,041"

Passenger's Side Head:

Cilinder n2:
Intake: Spring Height: 1,644"; Stem Tip Height: 1,902"
Exaust: Spring Height: 1,671"; Stem Tip Height: 1,901"

Cilinder n4:
Intake: Spring Height: 1,645"; Stem Tip Height: 1,898"
Exaust: Spring Height: 1,650"; Stem Tip Height: 1,906"

Cilinder n6:
Intake: Spring Height: 1,647"; Stem Tip Height: 1,908"
Exaust: Spring Height: 1,669"; Stem Tip Height: 1,914"

Cilinder n8:
Intake: Spring Height: 1,649"; Stem Tip Height: 1,896"
Exaust: Spring Height: 1,665"; Stem Tip Height: 1,911"

Largest Spring Height Difference: 0,027"
Largest Stem Tip Height Difference: 0,018"

Variation Considering Both Heads:
Springs: 0,041"
Stem Tips: 0,041"


"Specs":

Brazillian 318's Shop Manual states installed spring height should stay between 1,614" and 1,693" (I didn't have this infformation when I started the thread), BUT Edelbrock's 5877 springs specs put it at 1,65".
Brazillian manual states if installed height is superior to specs, shims should be used, thats the "common sense" ok. It also states spring pockets should be taken as reference to this measurement (thats what the manual said, not me)
BUT, what to do when installed height is inferior? According to brazillian's shop manual they're all within tolerances, but not according to the spring manufacturer. I believe, as the springs are non stock, spring manufacturer specs are the ones to be followed, right?
What to do in this case, regrind seats? And what about valve train geometry and all that?
Is it a big of a deal springs being more compressed than the manufacturer sugested?
And about the variation between heights?

Brazillians shop manual doesn't specifies tolerances for stem tip height, it refers to a factory "graduated tool" that I don't believe is available. In case any tip is above tolerances, it should be ground to specs. According to folks here on FABO, tolerances are in the range of 0,025".

Considering all that, what would be the proper course of action?
Most of my springs are under the recomended installed height, a few are above it.
My seats have already been ground, should I grind them even more?
IF so, whats the right way? Determining wich one is deeper in the chamber, setting spring installed height for that one an than matching the others?

Wouldn't I be running the risk os getting the stems too long on the rockers this way?
Isn't there some kind of "maximum stem height" parameter?
I have absolutelly no idea on the shops equipment, I didn't get to see the machines, and at the time I surelly didn't imagine I would run into all of this.
Oh, I checked valve "heads", and all exhaust valves are prouder in the chamber than the intake ones. I couldn't find a way to measure it, but they were all more or less like in the picture...

High performance 318s in Blumenau...lol.
We do have a few with some extra juice in them, but I wouldn call them high performance. One of the best is basically like I'm doing except for the heads (bored 0,040", 285ap pistons, sum K-6901 camshaft, double chain and sprockets, holley 4777, proform high rise intake, stock heads milled 0,06" with 1.6 roller adjustable rockers, double springs, good port job and 1,88" and 1,60" valves, with full lenght headers).
It is installed in a 1953 Chevy Bel Air...lol.
Chevy V8s are pretty rare down here, there was never a "stock V8 chevy" in Brazil, only Mopars (all A-body and all 318s) and Fords (292 and 302 Galaxie 4 sedan, and 302 Mavericks).
This is the car: [ame="http://www.youtube.com/watch?v=R2sS3QzyCWY"]2° Encontro internacional de hot rods da confraria do hot. AIC. - YouTube[/ame]



So...any tips on a game plan?
I was thinking...(remember this is the first time I get involved with rebuilding an engine), guess I should check if any of my valves were ground, than find the deepest valve seat, set installed spring height with that seat, set all other valves based on this one, recheck installed spring heights (to see if any need shims) and than check stem tip heights...
or there is any other way?
Am I missing anything?
Just thinking about the shops excuses...boy thats gonna be "fun".



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