4a Head on 7a Block???! Options

[Dennisj1]

Hey Guys just looking for some info on a combination of head and block.

Where I'm from we have a few cars with 4afe/4agze running between 13 and 14 seconds on the dragg strip which I find verry cool.

So, I was wondering if my 7afe with automatic transmision can be swapped with the following: 4a (black/silver top) 20 valve head on my 7a block and a manual transmission.

1. Can I first swap the head only and leave the auto tranny?

2. With some modifications like changing sparkplug, intake, injectors, tranny etc (except turbo and nos) would I be able to run between 13/14 seconds on the dragg strip?

3. Would this conbination cost a lot of money?

4. Is the combination of 4a head on 7a block called frankenstine?

Just looking for some ideas, appreciate the help. THX!!!

[95CelicaST]

Use the search function and look on Google for a 7A-GE or 7A-GTE.




1. Yes, but you're going to need some sort of EMS to run everything.

2. No. Not in a million years.

3. Yes. Read below.

4. A 4AGE head mated to the 7AFE block is called a 7AGE.


You won't be putting down 13 second quarter mile times with just a head swap. You're going to need a turbo to get you there. I believe a member here (Nik) said he spent somewhere in the area of $16,000 on his 7A-GTE and now that motor is for sale for $5,000 or $6,000.


You would need a LSD put in your transmission or else you'd never effectively get the power to the ground.

This post has been edited by 95CelicaST: Oct 4, 2009 - 11:42 AM