Visit The Dirt Forum for More Information

Author Topic:   toyota heads
Dirt Full Roller

Total posts: 59
posted November 06, 2002 12:08 AM  
Which head makes the most power, a 20R or a 22R? Have a 0 deck height rule so am using a 1985 22RE engine. Not sure which head to use. The 22R head is a FI head.

Dirt Full Roller

Total posts: 37
posted November 16, 2002 10:41 PM  
Stick with the re head. unless you are using after market pistons the re head works a little better due to the bigger valve size. and the fact that it is a close chamber. if you run after market pistons with a dome then run the 20r head but get the valve seats redone to accept the 22r valves to help with flow.

Dirt Freak

Total posts: 265
posted November 17, 2002 05:50 PM  
the 20r head flows like 180 cfm the carbed 22r head flows 270 cfm and the FIed 22r head flows 500 cfm. this is what i was told by a few toyota guys

Back to the Archives