valve ID

Lawrie

Lawrie

Well-known member
I have a set of new valves for a flathead I,m building up.
it came with a set of new Precision engine parts valves part number P1821-7 and P 1821, would anyone know what the difference is,is one for the inlet?
Thanks Lawrie
 
Lawrie as you probly already know already know, original ford intake valves had a dish in the center of the valve, exhaust had flat top valves
 
Brian they both are non magnetic.
West coast,8 of them have the dish ,
So I will use the dished ones in the intake.
thanks Brian and west coast.
Lawrie
 
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