yoterr

ok so i supposedly picked up an 85 head today for 75 bucks with no cam, looks like its been polished up and cleaned but when i got it home theres a slight difference.....the exhaust ports are different....the new one has circular ports and mine has pear shaped...is this a 20r head? did i get duped or do i have an aftermarket head?? ughh ill have pics up in a min or so..thanks for the help

ozziesironmanoffroad

uh oh....ill let someone else chime in cuz i have no idea, but doesnt sound good...

yoterr

nope..not at all, sheesh with the luck ive had...anyways heres the pics

the head i bought exhaust side


my head exhaust side


the head i bought top side


my head top side


the head i bought intake side


my head intake side


any help would be SWEEET

scuba

Sounds like an 84-85 22 head

yoterr

BAHH i hate my luck sometimes, errrrg its either that or its a 20r head, ive looked at some pics of a 20r head and it looks similar

RMA

yea you bought a head for a 22r with an open combustion chamber for the domed pistons on the 22r block thats why the round exhaust ports.

yoterr

so UTTERLY USELESS instead of the slightly useful 20r head.....heres some pics of the combustion chambers to support the theory i guess

new


old

yoterr

any 1 know wich way the valve guides come out??im guessing through the top, im gonna try my hand at replacing that guy...

big worm

could be a 22ret turbo head usually low comression

algranger

It's not a turbo head it looks like a tall block (early) 22r head

truckman1966

they come out from the top yes. but b very careful. they are very hard and thus very brittle. (new and old) and that head is an early 22R head. if it were an 84-85, it would have 8 exhaust stud locations, not 7. it is an 81-83

truckman1966

It would be 22R-TE not 22ret. nissan technology does not apply to toyotas. sorry. one of my pet peaves. and if it were a turbo head, it would have the 22R-E intake pattern as well as the 8 bolt exhaust and the fuel pump boss would be cast over. Used to work in a big engine rebuilder R+D dept

yoterr

thanks guys, im seing about getting my money back from the guy, and if that doesent work ill have this one for sale and i guess im gonna purchase another, at least now i know what to look for, (was dumb and wanted to hurry up and get it and get it ON!!)