Need help with understanding numbers

MikeH686

Mine is only two inches though.

10 Year Member

Oct 11, 2011

2,843

1,753

184

Waldorf, MD

Dec 18, 2011

#1

• Dec 18, 2011

• #1

So i have my motor on a stand as i work on the actually body and preping it for paint so i decided to work on the motor while it is out as well ... so i take the valve covers off and remove gaskets and i find numbers under each of my roller rockers on top of the heads right where the gasket for valve cover touches the heads ... the numbers range from 1.850 to 1.930 and each number between intake and exhaust valves are all different ... are these numbers for the shims for the valve springs or milling of the valves? can someone help me understand these numbers?

 

MikeH686

Mine is only two inches though.

10 Year Member

Oct 11, 2011

2,843

1,753

184

Waldorf, MD

Dec 18, 2011

#2

• Dec 18, 2011

• #2

bump please i just wanna know what these numbers could possibly mean and i cant use a search because i dont know how to word it

 

Rick 91GT

Mustang Master

Nov 29, 1999

9,692

95

99

PA

Dec 18, 2011

#3

• Dec 18, 2011

• #3

Sounds like installed height of the springs, I do a similar thing when I set heads up.... HOWEVER, they should be very close to the same...or atleast the intake and exhaust common.

 

MikeH686

Mine is only two inches though.

10 Year Member

Oct 11, 2011

2,843

1,753

184

Waldorf, MD

Dec 18, 2011

#4

• Dec 18, 2011

• #4

Yeah all the intakes and exhaust are about .005" off eachother but it sounds like the height?

 

Boydster

5 Year Member

Apr 10, 2011

301

20

39

Maryville, Tenn

Dec 19, 2011

#5

• Dec 19, 2011

• #5

Yeah, installed spring heights. There's nothing else in that area that would measure out to those numbers.

 

MikeH686

Mine is only two inches though.

10 Year Member

Oct 11, 2011

2,843

1,753

184

Waldorf, MD

Dec 19, 2011

#6

• Dec 19, 2011

• #6

So when I remove any of those springs put em back the same spot I found em?

 

MikeH686

Mine is only two inches though.

10 Year Member

Oct 11, 2011

2,843

1,753

184

Waldorf, MD

Dec 19, 2011

#7

• Dec 19, 2011

• #7

Or if I install new springs have them to the same specs?

 

Rick 91GT

Mustang Master

Nov 29, 1999

9,692

95

99

PA

Dec 19, 2011

#8

• Dec 19, 2011

• #8

Along with the shims and locators (if they have locators) under the springs, same height locks and retainers. If you change anything they need to be checked and reset.