does anyone know?

**panda** · 12-13-2006, 07:37 PM

could a 91 eclipse dohc head fit onto a 6th gen es ? i dont really know if that is how i should put it but im just wondering could the head off of the eclipse fit onto the 6g es

**krispy03** · 12-13-2006, 10:30 PM

i belive the 91 es was sohc. so if one wanted dohc some modding would have to be done.

**bronxbombr** · 12-14-2006, 03:42 AM

Why would you wanna go from dohc to sohc?
And yes modding would be in order.

9G · 12-14-2006, 04:52 AM

Yeah, why would you?

**milo111000** · 12-14-2006, 05:29 PM

funny tittle. anyone know......head!!

**4-G-rim** · 12-16-2006, 12:48 PM

Originally Posted by panda

could a 91 eclipse dohc head fit onto a 6th gen es ? i dont really know if that is how i should put it but im just wondering could the head off of the eclipse fit onto the 6g es

Are you talking about fitting a DOHC 4G63 head onto a SOHC 4G63?? There hasn't been much documented information about the SOHC 4G63 but I believe I read somewhere awhile back that the DOHC head won't work on the SOHC 4G63. Some guy on a GVR4 boards posted about doing the swap and he didnt have any success at all with it.

**panda** · 12-16-2006, 05:10 PM

hmm.. good stuff just wanted to know.. cause i was just curious.. :D know head hahaha that was pretty funnie i didnt even realize i put that there lol..

**bytchesgetstyches** · 03-17-2007, 03:11 PM

Your question has probably been answered already, but for anyone else that looks this up, a swap is possible, but modifications are deffinetly necessary. First off, you'll need the DOHC ECU, second you'll need to modify the ignition system. SOHC 4G63 uses a distributor ignition, DOHC uses direct ignition (hence the need for the ECU). You'll have to get a different ignition coil, and I believe the spark plugs are different. Plus, to make this smooth and avoid lots of electrical work, you'll want to pick up a DOHC wiring harness. When all is said and done, if you do all of the work yourself, you could possibly save $50 over just buying an engine and swapping it, but that's if nothing breaks, and you can find a really good deal on a head, cams, ecu, ignition coil and wiring harness. If you can't find any deals, you'll probably wind up spending even more money and time on the conversion than on a swap.