Hi everybody. can't believe that we have no valve diameters listed.Can s.o. chime in with the figures. I'd also like to feed my Desk Top Dyno with the data.
Thanks for tips or pointers.
Cylinder Head Valve Diameters urgently needed
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Cylinder Head Valve Diameters urgently needed
Best regards
Theo
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Re: Cylinder Head Valve Diameters urgently needed
2.19 and 1.88 on my 58 430 tri power. TJR
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Re: Cylinder Head Valve Diameters urgently needed
Do you have aftermarket valves installed? From two independent resources I've found out that the MEL valve sizes for Year 1958 are
Intake ...............2,140-2,150" and
Exhaust............ 1.770"-1.780".
Later than 1958 years' valve sizes have been reported to be smaller on the Intake valve while retaining the exh. valve size
Intake ...............2.09?
Exhaust............ 1.770"-1.780".
Intake ...............2,140-2,150" and
Exhaust............ 1.770"-1.780".
Later than 1958 years' valve sizes have been reported to be smaller on the Intake valve while retaining the exh. valve size
Intake ...............2.09?
Exhaust............ 1.770"-1.780".
Best regards
Theo
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Re: Cylinder Head Valve Diameters urgently needed
Valve diameters as listed in my 1959 M-E-L Registered Mechanics Service Specifications Handbook are as follows:
Intake - 2.080-2.090"
Exhaust - 1.770-1.780"
Intake - 2.080-2.090"
Exhaust - 1.770-1.780"
Ted Eaton --- http://www.eatonbalancing.com/ --
Big Engines are quick but it's hard to beat the fun that comes from running a normally aspirated Y-Block at 8.80's and 147 mph in the quarter.
Big Engines are quick but it's hard to beat the fun that comes from running a normally aspirated Y-Block at 8.80's and 147 mph in the quarter.
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Re: Cylinder Head Valve Diameters urgently needed
Fantastic, couldn't be any better and good to know you have books. My AERA Cylinder Head and Block" manual is packed but it doesn't list valve diameter numbers. I assume you have that book too. If you don't have it let me know what figures you might need in the future and I'll shoot them into your direction.
Except for my incorrect listing of the post 1959 Intake valve diameter size your latest info on valve diameters corresponds fine with what I've previously listed. Basically valve diameter have only been downsized on the intake side from 1959 on.
Gawd! That year I was a 1 year old su##er with small stck valves that were leaking and suffering from blow by like crazy
So it all melts down to:
Year 1958 MEL Valve Intake ...............2,140-2,150"
Year 1958 MEL Valve Exhaust............ 1.770"-1.780".
Year 1959 MEL Valve Intake................2.080-2.090"
Year 1959 MEL Valve Exhaust.............1.770-1.780"
Except for my incorrect listing of the post 1959 Intake valve diameter size your latest info on valve diameters corresponds fine with what I've previously listed. Basically valve diameter have only been downsized on the intake side from 1959 on.
Gawd! That year I was a 1 year old su##er with small stck valves that were leaking and suffering from blow by like crazy
So it all melts down to:
Year 1958 MEL Valve Intake ...............2,140-2,150"
Year 1958 MEL Valve Exhaust............ 1.770"-1.780".
Year 1959 MEL Valve Intake................2.080-2.090"
Year 1959 MEL Valve Exhaust.............1.770-1.780"
Best regards
Theo
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Re: Cylinder Head Valve Diameters urgently needed
As far as I know, those valve sizes are original. (2.19 and 1.88) I did not install them and they had old leaded gas seats on the exhaust side. I did replace those seats but did not change the valve size.
I have a set of 59 2 barrel heads at Slover's getting 2.25 and 1.88 valves put in them. Those original valves were smaller than the ones on the tripower engine. TJR
I have a set of 59 2 barrel heads at Slover's getting 2.25 and 1.88 valves put in them. Those original valves were smaller than the ones on the tripower engine. TJR
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Re: Cylinder Head Valve Diameters urgently needed
Here are some additional valve related figures for the archives, taken from a 1958 Lincoln maintenance manual.
Valve guide bore:
Intake and exhaust standard 0.3728 to 0.3735
Valve seat
Intake diameter
cylinder head #5750064 0.2120
cylinder head #5750062 0.2060
Intake width: 0.060 to 0.080
Exhaust width 0.070 to 0.090
Intake angle 30 degrees
Exhaust angle 45 degrees
Valve stem to guide clearance
Exhaust 0.0028 to 0.0042
Intake 0.0010 to 0.0024
Valve guide bore:
Intake and exhaust standard 0.3728 to 0.3735
Valve seat
Intake diameter
cylinder head #5750064 0.2120
cylinder head #5750062 0.2060
Intake width: 0.060 to 0.080
Exhaust width 0.070 to 0.090
Intake angle 30 degrees
Exhaust angle 45 degrees
Valve stem to guide clearance
Exhaust 0.0028 to 0.0042
Intake 0.0010 to 0.0024
MEL Marine division... and if you thought MEL car parts were scarce....
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Re: Cylinder Head Valve Diameters urgently needed
Thanks bunches. Additional info added.
Best regards
Theo
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