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Look at the guide thru the spring coils. The guides have a round notch just beneath the top of the spring. Run your bar between the coils into the notch and try to pull the guide down. Jim

If you go to the following thread and post #12 you'll find a PDF file of drawings of the various valves and associated components. On the '34 drawing you will see a drawing of the lower spring retainer/lock for the mushroom tippe valves. Notice that 2 sides of the retainer are flat and parallel...

You need to drive the guide down before pulling the clip or you'll just probably tear out the hole in the clip. You also need to be looking for a driver. Jim

Sounds like he's bored with all that reading. LOL Jim

Thanks Ron PM me if you do and I'll PM my address back to you. Jim Walt thanks for the offer if Ron doesn't have one I'll PM you Jim

Thanks Ron PM me if you do and I'll PM my address back to you. Jim

While on the subject of valves I need a favor. Original Ford valves had a "bump" around the stem under the valve head. This was actually a bump and not an undercut. I have a mushroom type valve with a bump and a '51-'53 valve with the bump. I'm looking for someone on here that may have a...

Lawrie I believe the installed height of the '51 thru '53 rotator springts id 1.89" as opposed to the '49 thru '50 springs installed height of 2.125". I am going to my office in a kittlle bit and check this info for sure. This should yield a seat pressure of 37 to 41`#,s according to the Ford...

Ron, I probably didn't explain things very well, so I'll try again. If I grind the seat 0.020" (verticaly) then the valve sits lower in the block. Since the horseshoe clip rests against the bottom of the deck guide bore, the guide is in the same position as it was before the seat was ground...

Joe Abbin has done consierable flow testing. You need to oeer his book. Go to: http:\\www.roadrunnerengineering.com (around $25.) Jim

I prefer the Best brand of composite gaskets for aluminum heads even on my blown 9CM Merc motor. Do a google search for Best gaskets. Jim

Thanks as always for your quick responses. I appreciate the info particulary from JWL it is exactly what I was looking for but again thanks to all. Jim

How much can be removed, when grinding valve seats, vertically before replacing the seat in the block? TIA Jim

i Believe the '32-'33 valve guides included a frlange instead of the horseshoe clip. Removal of valves had to be done in the valley as the guides could not come out o the top. Jim

Seems to me it pushes the guide up & out of the block after the horsehoe clip has been removed. It doesn't look like it pulls it down to be able to remove the clip. Jim

Thanks for the info fellas, it's much appreciated. Jim

Any body out there have a chart on the spec's of the various cams used in the flatheads? TIA Jim

I think the Manleyl ocks are larger than the stock Ford locks as well so that may also compress the spring some more if you use them. Jim

Don't know what I was thinkng when I wrote this. The 41A was a 24 stud engine. Sorry for any confusion. Jim

Not to argue but I believe the 41A blocks were 21 stud. Ford had a cutter to enlarge the valve pockets on the left head so the old heads (81* series) could be used on the new 41A block. The cutter was needed because of the valve angle change post war. Jim