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Toy_Runner
08-07-2006, 10:30 PM
pulling my head off to port and polish soon, and was thinking of putting a 20r head on, what do i have to change and i want to keep power steering,
what kinda of power diffrence

right now motor has cam, msd coil and header once head is port and polished

slacker
08-08-2006, 07:20 AM
20r head wont go on a 22r /85 block . deck heights are different . you'd have to go to a /84 down block .

Toy_Runner
08-08-2006, 11:47 AM
ok then i don't want to change out my block

slacker
08-08-2006, 04:57 PM
just for your info Craig ... http://www.members.shaw.ca/slacker502/technical.htm and click on the "R" series engine .


some reading for ya .

Ditchpig
08-08-2006, 06:43 PM
There is a 2mm difference in deck heights between the 1984.7 and 1984.8 22R blocks. If a person were to get interested in the "ultimate" 20R/22R Engine they would want a PRE Power Steering/Mechanical fuel pump 20R head and as early as possible 22R block.

Toy_Runner
08-08-2006, 07:57 PM
thanks slacker
ya, if anything i would drop a 4.3 in