7afe Head Swap With 4age

[Patrick.J]

Hi guys I'm new here. I have seen a couple topics regarding this already but would like to make my own to get my own questions solved here. First off I have a 94 Corolla DX with the 7afe in it. What parts would i need to make a redtop conversion on it. And where could I get them all.

Edited August 24, 2008 by Patrick.J

[Sam_Q]

here you go:

 

http://www.ae86drivingclub.com.au/board/in...680&hl=7age

 

http://www.ae86drivingclub.com.au/board/in...130&hl=7age

[Patrick.J]

here you go:

 

http://www.ae86drivingclub.com.au/board/in...680&hl=7age

 

http://www.ae86drivingclub.com.au/board/in...130&hl=7age

 

Alright that helped quite a bit. But still I am wondering which vehicles do the 4age come out of??? :no2:

[Sam_Q]

for australian delivered cars it was just the corollas: ae82, ae93 and apparently the ae92

[Hiro Protagonist]

for australian delivered cars it was just the corollas: ae82, ae93 and apparently the ae92

 

And AW11 MR2s.....although since the OP said they had a DX, it's doubtful they're in Australia anyway.

[Patrick.J]

And AW11 MR2s.....although since the OP said they had a DX, it's doubtful they're in Australia anyway.

 

 

Well I am located in the US. Where might be the best place to find these parts. I'm thinking the junkyard isn't going to have any of these cars.

[Hiro Protagonist]

Well I am located in the US. Where might be the best place to find these parts. I'm thinking the junkyard isn't going to have any of these cars.

 

Start looking for AT160 Celicas then, the first of the FWD shape. They had 4AGEs, although not sure if they made it to the states. Also try the Corolla clones like the Geo Prizm. Alternatively, get friendly with your nearest Jap wreckers or importers, and get a 20v.

[Patrick.J]

Start looking for AT160 Celicas then, the first of the FWD shape. They had 4AGEs, although not sure if they made it to the states. Also try the Corolla clones like the Geo Prizm. Alternatively, get friendly with your nearest Jap wreckers or importers, and get a 20v.

Will a silvertop bolt up as easy and give as much as a redtop? And what year range am I looking for. Sorry I'm not to familiar with all the model numbers. Oh and by the way I believe you need to replace the exhaust manifold with the 4age one, if so will it bolt up to the rest of my exhaust???

Edited August 26, 2008 by Patrick.J

[Hiro Protagonist]

Will a silvertop bolt up as easy and give as much as a redtop? And what year range am I looking for. Sorry I'm not to familiar with all the model numbers. Oh and by the way I believe you need to replace the exhaust manifold with the 4age one, if so will it bolt up to the rest of my exhaust???

 

Compared to a redtop (ie 16v smallport), the silvertop 20v has roughly 15-20kw more (supposedly), 5 valves per cylinder (obviously) and VVT. It was released in the JDM AE101 Levin/Trueno models, so they'd have to come in as imports. Still an A-series engine, so engine mounts and gearboxes are still the same, but for a 20V 7AGE you'll need a different timing belt. 16v 7AGEs commonly use a Porsche 944 timing belt (may be 924), whereas I'm lead to believe the 20v 7AGE can use the standard 4AGE 16v timing belt.

 

As for the exhaust, you can use either the 16v or 20v exhaust manifolds (you need to slot the two end holes though to get the 16v ones to fit on the 20v, and vice versa for 20v manifold on 16v head), but since the 7A block is 15mm taller than a 4A you'll need to weld an extension in somewhere to compensate for the extra height - shouldn't be too hard or expensive for your average local exhaust shop to do.

[ke30 driver]

hi, i have just bought a ae102 with the 7-afe but the last owner fitted the 4age 20v silvertop head, i might be able to answer some of your questions