The Ford Barn

j.grif · 03-28-2016, 10:42 PM

put chevy valves in 24 stud flathead and they are loud,was wondering if others have had this problem. Lot of clickiing going on and adjustments have been rechecked. Thanks.

Ol' Ron · 03-28-2016, 10:52 PM

Yes we've been doing this for years, especially when using a cam with a small base circle.

flatjack9 · 03-28-2016, 10:54 PM

Are they hitting the heads?

Bored&Stroked · 03-29-2016, 06:13 AM

There is no reason for them to be any louder than any other valve - unless there is too much lash or they are hitting the heads. I can't hear mine in my latest engine . . . well, I can't hear anything in my latest engine . . . as it is uncorked to date!

chap52 · 03-29-2016, 07:50 AM

Quote:

Originally Posted by flatjack9

Are they hitting the heads?

X's 2???

rick r · 03-29-2016, 08:49 AM

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Found that I had to hold the heads as far up towards the intake as possible before tightening the heads down. This eliminated the problem of the valves contacting the heads. With no locating dowels, the heads can be moved somewhat with all the studs in before tightening down.

flatheadfan · 03-29-2016, 09:43 AM

I am assuming you are using 1949-53 Ford valve springs. If so, did you shim the valve springs? I believe the shim thickness is 0.060"

Tom

deuce_roadster · 03-29-2016, 09:44 AM

You aren't putting earlier (39-41) heads on a 59 series engine are you? If so the valve pockets in the heads need to be enlarged.

D. Jones · 03-29-2016, 10:00 AM

I would think that if the valves were hitting the heads they would be bent and leaking.

Bored&Stroked · 03-29-2016, 03:40 PM

Quote:

Originally Posted by D. Jones

I would think that if the valves were hitting the heads they would be bent and leaking.

All depends on how much! But I agree with you, that is usually the net result!

Walt Dupont--Me. · 03-29-2016, 03:45 PM

It's awfull hard to tell this guy what his problem is when we don't what year engine is and what heads he,s using. Walt

j.grif · 03-29-2016, 08:04 PM

Thanks much for info Guys. Not sure of year of the block but both heads are 59ab. AS for the springs I installed new springs for the flatheads. Been awhile but shimmed at least .060. The spring and valve assy seemed a little loose compared to regular ford valves and springs, The valve stems had to be shaved a few thousand to allow room for adjustments. reading this,I can see where I would of been better off going ford valves any way thanks

Ol' Ron · 03-29-2016, 09:07 PM

Welcome back Walt.

Ronnie · 03-29-2016, 09:10 PM

Lots more work when you use stock 59a valves and split guides..The spring shims have nothing to do with valves hitting the heads if that's what you are thinking.

R

jack orchard · 03-30-2016, 09:46 AM

Is it possible the valves were adjusted without the cam being at its lowest point?
just a thought.,...jack

03-28-2016, 10:42 PM	#1
j.grif Junior Member Join Date: Feb 2015 Posts: 10	chevy valves in flathead put chevy valves in 24 stud flathead and they are loud,was wondering if others have had this problem. Lot of clickiing going on and adjustments have been rechecked. Thanks.

03-28-2016, 10:52 PM	#2
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,985	Re: chevy valves in flathead Yes we've been doing this for years, especially when using a cam with a small base circle.

03-28-2016, 10:54 PM	#3
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,600	Re: chevy valves in flathead Are they hitting the heads?

03-29-2016, 06:13 AM	#4
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,723	Re: chevy valves in flathead There is no reason for them to be any louder than any other valve - unless there is too much lash or they are hitting the heads. I can't hear mine in my latest engine . . . well, I can't hear anything in my latest engine . . . as it is uncorked to date!

03-29-2016, 08:49 AM	#6
rick r Senior Member Join Date: May 2010 Location: Woodville Ontario Posts: 227	Re: chevy valves in flathead Sponsored Links (Register now to hide all advertisements) Found that I had to hold the heads as far up towards the intake as possible before tightening the heads down. This eliminated the problem of the valves contacting the heads. With no locating dowels, the heads can be moved somewhat with all the studs in before tightening down.

03-29-2016, 09:43 AM	#7
flatheadfan Senior Member Join Date: May 2010 Location: West Michigan Posts: 1,218	Re: chevy valves in flathead I am assuming you are using 1949-53 Ford valve springs. If so, did you shim the valve springs? I believe the shim thickness is 0.060" Tom

03-29-2016, 09:44 AM	#8
deuce_roadster Senior Member Join Date: Oct 2011 Location: Shelton, WA Posts: 3,971	Re: chevy valves in flathead You aren't putting earlier (39-41) heads on a 59 series engine are you? If so the valve pockets in the heads need to be enlarged.

03-29-2016, 10:00 AM	#9
D. Jones Senior Member Join Date: Jan 2013 Location: Bend, Oregon Posts: 519	Re: chevy valves in flathead I would think that if the valves were hitting the heads they would be bent and leaking.

03-29-2016, 03:45 PM	#11
Walt Dupont--Me. Senior Member Join Date: May 2010 Location: Gardiner Me. Posts: 4,200	Re: chevy valves in flathead It's awfull hard to tell this guy what his problem is when we don't what year engine is and what heads he,s using. Walt

03-29-2016, 08:04 PM	#12
j.grif Junior Member Join Date: Feb 2015 Posts: 10	Re: chevy valves in flathead Thanks much for info Guys. Not sure of year of the block but both heads are 59ab. AS for the springs I installed new springs for the flatheads. Been awhile but shimmed at least .060. The spring and valve assy seemed a little loose compared to regular ford valves and springs, The valve stems had to be shaved a few thousand to allow room for adjustments. reading this,I can see where I would of been better off going ford valves any way thanks

03-29-2016, 09:07 PM	#13
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,985	Re: chevy valves in flathead Welcome back Walt.

03-29-2016, 09:10 PM	#14
Ronnie Senior Member Join Date: May 2010 Location: Canada Where it snows Posts: 2,059	Re: chevy valves in flathead Lots more work when you use stock 59a valves and split guides..The spring shims have nothing to do with valves hitting the heads if that's what you are thinking. R

03-30-2016, 09:46 AM	#15
jack orchard Senior Member Join Date: Jun 2011 Location: summerfield florida Posts: 383	Re: chevy valves in flathead Is it possible the valves were adjusted without the cam being at its lowest point? just a thought.,...jack __________________ Proud FNG We fixem cars. Heap Good!