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Hi guys I Have a 7afe head and want to put it on my 4afe motor will it work?
as far as i knw the heads are the same the only diffs is the bottom end. 
ja heads are the same! I think the 7afe has a bit more lift, but that shouldnt be a problem!
Thanks guys and if I put a 4age head will that make a difference?
4A-GE head doesn't line up correctly with the 4A-FE bottom end, rather just buy a 4A-GE motor, no easy way out on this one bro.
Regards
D-MON
the 4afe, 4age i, ii, iii and 20v blocks have the same bolt pattern and will line up correctly
The diff between the 7afe and the 4afe heads are the intake ports being at a very steep angle as opposed to the 4afe and the 7afe has 1mm more lift. The exhaust side also has a small diffrence. The 7afe head will make a diffrence at higher rpm but remember to up the compression a little. you will also require a chip or piggyback to tune for optimum performance.
Last edited by SaintGP (2009-08-21 18:29:39)
4A-GE head doesn't line up correctly with the 4A-FE bottom end, rather just buy a 4A-GE motor, no easy way out on this one bro.
Regards
D-MON
Sorry 4 the wrong info.I trust Saint-gp as he has one hectic 7A-FE head setup & extensive knowledge.So my bad. 
Regards
D-MON
I wouldn't call it a hectic setup, just differrent. We all human and entitled to make mistakes so you're forgiven.
Quick note: when you're decinding to swap heads and are not sure if it would fit, just get a head gasket for the sub you're going to use and another for head you want to fit. Then line the two gaskets over each other, if the bolt holes line up then yes it can fit but you need to check oil ports, water ways as well as bore size and compression ratio. This is a cheap and effective starting point.
Thanks guys for the info
Howsit guys, Im doing the same conversion - 4age head on a 4afe block. Whats needed to do this conversion how will i go about doing this conversion. I plan on changing the piston, conrods and crank to 4age. am i on the right track.
i would get a complete 4age motor it would work out cheaper and simpler to do the conversion. it the small things that take time like the oil down pipe to sump and then the sump it self also the spalsh plate in the sump. distributor plug wires, the support braket for the intake manifold. these things are small items that can add up very quick. but if you buy a complete motor from on of the import places they come complete so 90% home. Just the way i look at it.
I second that! In your case, you just need a sub assembly and you'll be off.
Thanks guys. Really do appreciate the help. Hmmmmm...... now to find a complete sub assembly.
Thanks guys. Really do appreciate the help. Hmmmmm...... now to find a complete sub assembly.
Speak to Ishaaq(FKN16V), on this forum, He might be able to help you.
All the best!
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