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<font color='#000000'>i have a 90 st with 256k miles on it ive taken into consideration that i could possibly put a 5sfe in but i dont have the time to go searchin around for a gt engine while i might as well get a gt anyways. Ive got a JDM 4afe set aside as well as a 4age head off a friends mr2. Would it be possible to use the 4age head on a 4afe engine ? ive heard about people doing that with the next gen 7afe motors but i wasnt sure. Just tryin to decide if its better to just use the new 4afe or possibly look for a complete 4age. If so would the 4age engine bolt on with no problems to my existing trans?
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<font color='#000F22'>you could use the whole head, but you would have to also swap over the fuel rail injectors, intake manifold, ecu ect.... I dont know if you grabbed all of these from your buddy. you pretty much need the complete top end, with ecu</font>
 
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