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Ol' Ron · 11-22-2020, 10:02 AM

The interesting part of these heads is the, Qute 400. When I was building engines, the customer had a choice of what manufacture provided the parts. most of them chose the L-100 cam and some the Offy heads. Now the Net lift of the L-100 is .360" and I always had to clearance for valve lift. This was not a problem as I had a fixture for the mill and took off the material at a 4deg angle ti keep the CR as hi as possible. Also the transfer area of thes heads is very low to increase the CR limining flow. However, for a street engine this worked in your favoe by increasing torque/ Yes I also milled them for .045/.050 Piston to head clearance. I only paid around 300 bucks for them much ckeaper than the Edelbrock's.
Gramps

11-22-2020, 10:02 AM	#10
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,857	Re: Offenhauser 400 Heads Value The interesting part of these heads is the, Qute 400. When I was building engines, the customer had a choice of what manufacture provided the parts. most of them chose the L-100 cam and some the Offy heads. Now the Net lift of the L-100 is .360" and I always had to clearance for valve lift. This was not a problem as I had a fixture for the mill and took off the material at a 4deg angle ti keep the CR as hi as possible. Also the transfer area of thes heads is very low to increase the CR limining flow. However, for a street engine this worked in your favoe by increasing torque/ Yes I also milled them for .045/.050 Piston to head clearance. I only paid around 300 bucks for them much ckeaper than the Edelbrock's. Gramps