7afe Turbo Options

[Cevax]

Well I didn't want to start this thread yet since I am still sourcing parts but I really need help getting parts since I am not sure what to buy. I have a 7afe now but i believe it has a rod knock and was told by a mechanic that to change the piston and rods the whole block has to be machined and will cost too much money, even though its only 350 dollars on parts or so for OEM pistons rods and rings he recommended me finding a new engine which I cannot find for less than 750 including shipping.

but if I buy piston and rods why wont they just drop right in?

I also have a 4age blue top head in my house that I got for the build before I found out my engine might be blown but if I have to buy a new engine its going to cost way to much to even begin the 7age conversion. My engine has a constant "knocking sound" coming from the cylinder head at around 1500 rpm it goes away at high rpm, It has 155k, abused but still runs strong. But during all this time looking for a motor (and saw a 7age with 115hp) personally started thinking that going with just the 7afte idea might more cost effective and since the 7a gets to peak torque so quick it should be more fun to drive( thoughts please), but anyway anybody with any experience on building a motor does it really have to be completely machined.

thanks

This post has been edited by Cevax: Jan 6, 2009 - 3:38 PM

[hurley97]

I didn't really read everything I just skimmed, so forgive me if I ask or say something you already explained.

As far as a 7AFE rebuild it'll probably cost you about $500-600 in internal parts (that's with my discount from work which is pretty similar to ToyotaWorld pricing minus shipping), if you were going to go about replacing everything (i.e. O2 sensor, alternator, radiator, fuel filter, etc) you should count on another $500 or so. So say $1000-1200 total, which is around what my 7A rebuild ended up costing me.

As far as what your mechanic said, you may have to have the block machined but it depends on the damage to the cylinder walls. Of course you'd need to tear the motor apart to find out. The size of the pistons depends on the cylinder bore size which you would need to find out using the numbers stamped on the block itself, so again, you'd have to take the motor apart to find out.

You can check out my 7A Rebuild thread and see if that helps at all, http://www.6gc.net/forums/index.php?showtopic=51960&