Heavy D
Junior Member
Massachusetts Chapter Member
Posts: 526
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Post by Heavy D on Aug 29, 2010 9:59:24 GMT -5
if i had to guess maybe less power, fe head has less flow, as the ge head has a bigger intake port and better intake system
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pinoyrollarida
New Member
Nevada Chapter Member
silver 9th gen
Posts: 317
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Post by pinoyrollarida on Aug 29, 2010 12:31:36 GMT -5
i meant gain/loss from my engine setup now stock 4afe internals but changing over to a 4age bottom end and just keeping the fe head so i aint gotta go thru the wiring headache
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onefastae101
New Member
California Chapter Member
Posts: 208
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Post by onefastae101 on Aug 29, 2010 15:05:55 GMT -5
yea thats exactly what heavyd meant, youll probly see more loss then gain because of the port angles on the FE head. and why would you limit a GE bottom end to only rev to 6,500rpm? i wouldnt do it.
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Post by 1000whpmonster on Sept 13, 2010 19:47:45 GMT -5
FE heads suck! They need alot of porting to be abble to flow well. I took alot of time on Pedros head cause the ports are not a straight shot and tiny compared to 4AG heads. Honestly if you put a high comp bottom with a fe head, you may feel a small it of power, but you will be out of breathe above 5000rpms. Just save for a swap/7ag or don't do it at all.
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