dsm_talon
Probationary Member
- 4
- 13
- Feb 20, 2020
-
Greer,
South_Carolina
Ill just start from the very beginning, I went to a car meet in my Talon and someone came up to me and said i like your car, i have a parts one sitting behind my garage if you want it. i asked how much he said if you come get it you can have it. This car is a 97 Eclipse Spyder GS 4G64 SOHC. So me of course i said yes and 2 days later i was towing this Eclipse down the road!
The dude said he used it for parts, he cut wires, fuel hoses, radiator hoses, pretty much everything in the way of the starter, well that kind of worried me but when i got the car home I noticed the only thing cut was 1 heater core hose, i slapped a starter in it and some new gas and the 4g64 fired right up like it never sat. Checked compression before swapping and got 170s across the board.
There is a junk yard 1hr away that is in the back country and not a lot of people go there, well there's a Spyder GS there. I took the skirts off of for my talon and one day I look over and a unmodified 95 GST is just chilling on rotors. I pop the hood and sure enough the first ever 4G63 i have ever seen in person, i was like a kid in a candy shop. So being this GST is there and i have a 4g64 now i do hrs of research to find out the 4g64 block can be mated with the 4G63T head.
Now after my ramble is the process of my swap! With pictures and videos.
So i took the 4g64 cylinder head off and noticed the block looks like it’s been rebuilt, cross hatching is amazing, pistons wiped clean with 1 stroke. It was amazing, so i cleaned the surfaces of the head and got everything all cleaned up. There are 5 oil hole in the block that need to be plugged, they are not pressurized but very ideal to seal them shut, i used freeze plugs ordered from parts stores. Sealed them shut and taped off the block waiting to pull the 4G63T cylinder head. Pulled the 4G63T head and both wiring harness as well as a EPROM ECU! Got home and installed both harness and the ECU. Installed the fuel resistor pack and knock sensor and was good to go. The head looked brand new like it just got worked on and im 75% it has been rebuilt. So cleaned the head up and i used a 87mm 4g63 felpro head gasket from the parts store, 4g63 felpro head bolts, i know I should have got arps. Installed the head on the block and torqued it all down!
Next came timing, i bought the 95 2g timing kit so I didn’t have to piece parts together. When timing it is best to use a 4G64 DOHC timing belt as it has 1 extra tooth to make up for the 6mm extra the 4G64 block has. If your using 4G63 cam gears they will both have to be marked 1/2 tooth advanced. Got it all timed up and turned over by hand and it went smoothly. Plugged all sensor plugs in, plumbed ic and piping and installed oil and coolant, unplugged the coil and primed the system, plugged the coil in and bam the 4G64/63T fired right up like I never even worked on it!!!
It was so awesome, it didnt idle and wouldn’t run top notch at first but it was running! Got everything plumbed up right and hooked up and got it to idle. Installed a boost gauge and was hitting 7psi on the 25yr old stock T25. Got the car running and semi driveable and bam 2 weeks later the T25 lets me down… 16G innrhe
Video of progress
The dude said he used it for parts, he cut wires, fuel hoses, radiator hoses, pretty much everything in the way of the starter, well that kind of worried me but when i got the car home I noticed the only thing cut was 1 heater core hose, i slapped a starter in it and some new gas and the 4g64 fired right up like it never sat. Checked compression before swapping and got 170s across the board.
There is a junk yard 1hr away that is in the back country and not a lot of people go there, well there's a Spyder GS there. I took the skirts off of for my talon and one day I look over and a unmodified 95 GST is just chilling on rotors. I pop the hood and sure enough the first ever 4G63 i have ever seen in person, i was like a kid in a candy shop. So being this GST is there and i have a 4g64 now i do hrs of research to find out the 4g64 block can be mated with the 4G63T head.
Now after my ramble is the process of my swap! With pictures and videos.
So i took the 4g64 cylinder head off and noticed the block looks like it’s been rebuilt, cross hatching is amazing, pistons wiped clean with 1 stroke. It was amazing, so i cleaned the surfaces of the head and got everything all cleaned up. There are 5 oil hole in the block that need to be plugged, they are not pressurized but very ideal to seal them shut, i used freeze plugs ordered from parts stores. Sealed them shut and taped off the block waiting to pull the 4G63T cylinder head. Pulled the 4G63T head and both wiring harness as well as a EPROM ECU! Got home and installed both harness and the ECU. Installed the fuel resistor pack and knock sensor and was good to go. The head looked brand new like it just got worked on and im 75% it has been rebuilt. So cleaned the head up and i used a 87mm 4g63 felpro head gasket from the parts store, 4g63 felpro head bolts, i know I should have got arps. Installed the head on the block and torqued it all down!
Next came timing, i bought the 95 2g timing kit so I didn’t have to piece parts together. When timing it is best to use a 4G64 DOHC timing belt as it has 1 extra tooth to make up for the 6mm extra the 4G64 block has. If your using 4G63 cam gears they will both have to be marked 1/2 tooth advanced. Got it all timed up and turned over by hand and it went smoothly. Plugged all sensor plugs in, plumbed ic and piping and installed oil and coolant, unplugged the coil and primed the system, plugged the coil in and bam the 4G64/63T fired right up like I never even worked on it!!!
It was so awesome, it didnt idle and wouldn’t run top notch at first but it was running! Got everything plumbed up right and hooked up and got it to idle. Installed a boost gauge and was hitting 7psi on the 25yr old stock T25. Got the car running and semi driveable and bam 2 weeks later the T25 lets me down… 16G innrhe
Video of progress
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