Valve and pistion clearance

M

Max41

Member
A question asked 1000 times. What is the minimum valve and piston clearance for a bone stock 41 flatheadf V8. The only "upgrade" are .100 over Egge pistons. Interesting also, all parts are marked 81A vs 11A throughout the engine.
 
welcome to the 'Barn....someone will answer....maybe lots of someones....lol.....so whatcha working on??...got pics??...lol.....Mike
 
Max41 said:
A question asked 1000 times. What is the minimum valve and piston clearance for a bone stock 41 flatheadf V8. The only "upgrade" are .100 over Egge pistons. Interesting also, all parts are marked 81A vs 11A throughout the engine.
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81A sounds like correct numbers for '41. General rule is no less than .040" clearance for piston and valve.

Here's a good site to review:

http://www.vanpeltsales.com/FH_web/flathead_specs-85to100mid.htm

Lonnie
 
In my opinion; .040" clearance over pistons and as much as possible over the valves as an aid in breathing, but without compromising compression!??
 
Brian
Thank you for the welcome. I am working on a 1941 Ford Fordor Super Deluxe. The car has had one owner (family wise) in that my Greatgrand Father bought it new in Nov 40, have the sales receipt. A Great Aunt drove it, then my Dad, a daily driver until 71. I got it about 10 years ago, but have only been working on it for about the past 2years. Making some headway. I will post pictures soon. Again thanks for the welcome.
 
Mike in AZ,
Thank you for the welcome. I am working on a 1941 Ford Fordor Super Deluxe. The car has had one owner (family wise) in that my Greatgrand Father bought it new in Nov 40, have the sales receipt. A Great Aunt drove it, then my Dad, a daily driver until 71. I got it about 10 years ago, but have only been working on it for about the past 2years. Making some headway. I will post pictures soon. Again thanks for the welcome.
 
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