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4g63 head
http://www.4g61t.org/forum/viewtopic.php?f=6&t=20030		 Page 1 of 1
Author:  thebeast [ Sun Jan 14, 2007 6:13 pm ]
Post subject:  4g63 head
wondering what everyones out look on the 2L head on the 1.6 should it be done the 2L head is port and polished with 264 cam but i was wondering what it would do for the 1.6 i was tolld my turbo would spool alot slower but ill be able to rev higher but will be running a 16-20 g or a gt28r (the disco) anyway need feed back thanks
Author:  customthecoltgt [ Sun Jan 14, 2007 7:02 pm ]
Post subject: 
I would just wait for the 63 short block and do the complete swap if your going to do that much work. You should set up the 63 engine and get it the way you want and do the whole swap at once. That would be nice.
Author:  P90Puma [ Sun Jan 14, 2007 7:42 pm ]
Post subject:  Re: 4g63 head
Quote:
wondering what everyones out look on the 2L head on the 1.6 should it be done the 2L head is port and polished with 264 cam but i was wondering what it would do for the 1.6 i was tolld my turbo would spool alot slower but ill be able to rev higher but will be running a 16-20 g or a gt28r (the disco) anyway need feed back thanks
Turbo will spool slower because of the cam and because the 2.0L head lowers the compression of the 1.6L motor.

You "won't" be able to rev higher but the top end will feel stronger.
Author:  quikgt [ Sun Jan 14, 2007 7:44 pm ]
Post subject: 
SEARCH is your best answer! Putting the '63 head on the '61 will lower your compression, but the larger ports will give you better flow, helpful if your running a bigger turbo. Just remember to port match the manifolds.
Author:  thebeast [ Sun Jan 14, 2007 8:39 pm ]
Post subject: 
i want to build a 1.6 but i wasnt sure what head to use but i have the 2.0 head so i think ill jus swap the 264 cams into the 1.6 head and put in upgraded valve springs
Author:  SpinMasta11 [ Sun Jan 14, 2007 8:45 pm ]
Post subject:  Re: 4g63 head
Quote:
Turbo will spool slower because of the cam and because the 2.0L head lowers the compression of the 1.6L motor.

You "won't" be able to rev higher but the top end will feel stronger.
Actually 264s increase spool up. Even though curtain area is unchaged they provide better low lift flow. What will the compression be lowered to because of the combustion volume increase? I can't see the spool up being affected too much just because of that, and the cams might offset the loss in spoolup from static compression drop.
Author:  Flying Eagle [ Sun Jan 14, 2007 9:32 pm ]
Post subject: 
2.0L Turbo head on a 4g61T is NOT a good idea. Period.
Author:  89coltgt [ Mon Jan 15, 2007 2:58 am ]
Post subject: 
If you are wanting to do this to try and make more power and have the ability to flow more with the 1.6, you could use a 4g67 (1.8 dohc) head. It has the same combustion chamber size as the 1.6 and the 2.0 port sizes-keep the compression the same while having the ability to flow more :)
Author:  bfrontin [ Mon Jan 15, 2007 9:15 am ]
Post subject: 
Quote:
If you are wanting to do this to try and make more power and have the ability to flow more with the 1.6, you could use a 4g67 (1.8 dohc) head. It has the same combustion chamber size as the 1.6 and the 2.0 port sizes-keep the compression the same while having the ability to flow more :)
DITTO!!

8)
Author:  thebeast [ Mon Jan 15, 2007 2:51 pm ]
Post subject: 
so swap the 264s into the 4g67 head and do lifter springs and i should beable to rev higher so put on a 20g so i have power till 9 grand right
Author:  CaptainTonus [ Mon Jan 15, 2007 2:55 pm ]
Post subject: 
Quote:
so swap the 264s into the 4g67 head and do lifter springs and i should beable to rev higher so put on a 20g so i have power till 9 grand right
Haha. Not really. 20G's are small and so are 264's. You'll make power to like 7,000rpm maybe, if you're lucky.
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