Thread: Flathead Cams
View Single Post
Old 03-15-2021, 10:22 PM   #15
Ol' Ron
Senior Member
 
Ol' Ron's Avatar
 
Join Date: May 2010
Location: Chester Vt
Posts: 8,860
Default Re: Flathead Cams

The cams you mentioned have an aesthetic value, and ther's nothing wrong with that. However if you compare the timing figures it the Tilden list you'll find them all very similar to a 3/4 cam. The L-100 doesn't work well in a small engine because the long intake closing kills a lot of low RPM compression by closing the intake balve very late. the 1007B has a faster lift rate. For the exception of the 400 JR.r most run very well on 50/lbs spring pressure. Now for the BIG reason. Any cam and lifter combination today will cost over $500, so you might as well get your money's worth.
Gramps
Ol' Ron is offline   Reply With Quote