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View Full Version : Toyota 20R 22R valves


afsautoworx
02-26-2006, 08:40 PM
Heard about using toyota 4 cylinder valves in our heads for a cheap oversized valve a while back. Has anyone done this and what needs to be done to use them. I have dodge heads and toyota heads laying around but theyre all together so i cant measure them cause its way too cold out (no heat in garage). Any info at all please, thanks.
89acclaim
03-18-2006, 07:20 PM
This thread might help you. http://www.turbododge.com/forums/showthread.php?p=663625

Daniel Merrill
afsautoworx
03-18-2006, 09:01 PM
Yah ive seen that one. Ive done some research. The 22RTEC (22r turbo motor) has the same length/diameter valves as our swirl heads. But the intake is 45mm intake/37mm exhaust. Sounds kinda big to be fitting in our heads but maybe not impossible. I would think it would be better to do some port work and go with a +1 or +2mm max oversize valve. The only part im unsure of is the sizes of the keepers between valves. I have some 22rtec valves on order so i can figuire more out.
mock_glh
03-18-2006, 11:04 PM
Several years ago I did my own big valve conversion on a G head. I found that the old Nissan 240/260/280 motors have some 44mm valves with stems long enough to cut down to whatever length I needed. For the exhaust I used some 38mm pieces from a Nissan 200SX, also long enough to cut to size. I cut the keeper grooves 1/16" higher for more spring height and used intake keepers for all the valves. I got all these for 50 cents a valve at the junkyard (I did have to take them out but heck, it beats paying $120 or more when money is tight).:D
afsautoworx
03-19-2006, 01:58 PM
how did that head work? was the 44mm valve tight in there?
SwiftTech
03-19-2006, 04:11 PM
Several years ago I did my own big valve conversion on a G head. I found that the old Nissan 240/260/280 motors have some 44mm valves with stems long enough to cut down to whatever length I needed. For the exhaust I used some 38mm pieces from a Nissan 200SX, also long enough to cut to size. I cut the keeper grooves 1/16" higher for more spring height and used intake keepers for all the valves. I got all these for 50 cents a valve at the junkyard (I did have to take them out but heck, it beats paying $120 or more when money is tight).:D

what about the valve seats? did you run the stock or oversized seats?
afsautoworx
03-19-2006, 05:18 PM
he must of run oversized