Topic: 22r/20r question

[yodasrnr]

just need some help a friend blew his 22r rings are bad he bought a 20r long block pretty cheap. the question is can we use the 22r head on the 20r block in know theres a difference when you want to use the 20r head and 22r block. this is a quick fix for know till he builds the 22r block again. thanks 

[jimbo74]

dont think it works the other way.....

[Wermz84]

I have read alot about people using 20r heads on 22r blocks.  But I have not heard anything about the 22r head on the 20r block, so I'm not thinking so.  ?  not to sure though.

[79coyotefrg]

uh  NO  run the 20R  till you can rebuild the 22R block, then put that fresh 20R head and intake on the 22R

[jimbo74]

im with the idea of jsut runnign the 20r until you get the 22r rebuilt.....

you can put a 20r head on a 22r motor but not the other way arouind

[yodasrnr [OP]]

i also forgot to mention the truck is turboed so compression wont be a problem. if possible its just a quick fix

[jimbo74]

holy crap, yeah thats really not going to work... lol

[79coyotefrg]

i also forgot to mention the truck is turboed so compression wont be a problem. if possible its just a quick fix

   ok  if the 22 head is from a torbo or efi  it wont work,  the 20R piston will smack the living crap out of the head

and btw  when you go back with the 22  get something besides the stock ct20 turbo,  they are junk,  a ct26  from a early supra  works great with minimal mods

[kyle_22r]

im with the idea of jsut runnign the 20r until you get the 22r rebuilt.....

you can put a 20r head on a 22r motor but not the other way arouind

yes you can, it just won't perform as good.

[yodasrnr [OP]]

thanks guys yeah the turbo on there right know is a t3-t4b so the turb is not an issue anymore its a custom turbo kit i fabbed for him thanks again

[79coyotefrg]

you bet, 

you could put a 22''R'' head on a 20R block  and blow lots of boost,  but a efi head ''RE''is flat  and has no where for the 2mm flat dome of the 20R piston to go,

[kyle_22r]

hey, maybe i'm being picky but it's misleading to say the 22R head has the open chambers and the 22RE head has the closed quench chambers.  there were open chamber 22RE engines and closed chamber 22R as well...just an early vs late issue.