7ac

[d1_drift_kid]

[attachment=27379SC01421.JPG]Ive seen 4ac heads on 7afe 1.8lt blocks. I heard you don't need to mod anything for this conversion.
Is the power good? is it worth it? do i need to find a new cambelt to suit?

[slide86]

1. why is there an engine crane in your post

2. better of just getting a 7afe and put a carby on it......if you really must.

3. just get a 4age, it will be better

[ae71]

agreed.

yes a 4ac should fit on unless the 4afe has meaty pistons that stick out past the top of the block.

would make a fairly toquey motor for a daily driven ae71, but other than that i wouldn't think it would be worth it.

whats the power figure of a stock 7afe? well putting a 4ac head on it will decrease the power. you wont gain any compression either, 4ac and 7afe have near identical combustion chamber cc's

[Course_Out]

If you want to keep it carby you could use a 7afe with the carb/manifold/distributor from a 4afc.

With a 32/36 weber on it it would be a rather torquey motor. Also if you look up Billzilla's page on Google you will find some good info on getting decent hp out of the f series heads as well.

Wish I had thought of it earlier, would have been an interesting conversion

[Konakid]

hahahah 4age86 and i were thinking about this a while back, would be way to much effort for minimal return.

[ae71]

oh and your other question about the timing belt. you should be able to use a 7afe one because it only drives the one cam gear as does the 4ac but i don't know if the 7a block is slightly taller and would require a longer belt than a 4ac.

[Sparkle86]

<div class='quotetop'>QUOTE (ae71 @ Jun 23 2008, 11:50 AM) </div>Block is taller

[d1_drift_kid]

[attachment=27414SC01405.JPG]
better yet 7age
[attachment=27415SC01370.JPG]



i heard porcshe cambelt fits? clarification.
and will the stock ecu screw you over?

[gunbz-r]

that bottom pic is a rotary dude.

[riojin]

it is clearly a rotary in the 2nd pic.

is this thread a joke? i seriously don't get it and if its a joke it makes that ok