I have a 87 non turbo mk3 I recently purchased a crashed 87 turbo mk3 I took the turbo motor and threw it in my car and after running for about 10 min the motor locked up. I am curious if i rebuild the turbo motor and parts are interchangeable between the blocks? I don't know the damage yet on the motor but am thinking that the main and crank bearings were no good. So if the crank is messed up or the block am I able to use the non turbo block.
7mge block and 7mgte block
- Thread starter droopdude11
- Start date
Crankshaft & Connecting rods are same. Pistons are different. N/A Pistons have a Higher compression than turbo pistons. so if your N/A crankshaft & connecting rods are good you can use them in your Turbo block.... As for the cylinder head, to my understanding they're the same in all but the intake cam gear.
If the heads are exactly the same but the intake cam that would be awesome..
Hope someone will confirm this
Hope someone will confirm this
Yes, the heads are the same and the exhaust cam is the same. The gear on the exhaust cam drives either the CPS (GTE) or the distributor (GE)
The intake cam is a little different. I believe it has a bit more duration, but nothing to write home about. There has been lots of debate on the forums as to whether or not it is worth it. Some have claimed 10 HP gains from it.
The intake cam is a little different. I believe it has a bit more duration, but nothing to write home about. There has been lots of debate on the forums as to whether or not it is worth it. Some have claimed 10 HP gains from it.
You can use the block, however you will have to run a different turbo drain and feed oil system as the previsions are not drilled into the block. The NA Block also does not have oil squirters for the pistons however I wouldn't worry about them.
The NA block doesn't have oil feed for turbo. The bosses for the front and rear knock sensors aren't tapped, but the center one is (Which it is not on the GTE block) The turbo oil return isn't there either, but that's less of an issue. As mentioned, the NA block doesn't have the bosses for the oil squirters. Crank and rods are fine. The pistons are higher compression (9.2:1 instead of 8.4:1) but considering that my forged pistons are 9:1 even that might not be a show-stopper. The higher compression will limit the top end boost, but will spool your turbo faster, and make more off-boost power, ie: better bottom end torque.