| ausmini https://www.ausmini.com/forums/ |
|
| Cooper 998 head https://www.ausmini.com/forums/viewtopic.php?f=2&t=25265 |
Page 1 of 2 |
| Author: | craig goss [ Sat Nov 25, 2006 2:52 pm ] |
| Post subject: | Cooper 998 head |
Hey guys I was just wondering what price a 12GG295, 998cc Cooper head would go for?? Cheers |
|
| Author: | matt van'74 [ Sat Nov 25, 2006 2:53 pm ] |
| Post subject: | |
I just paid $400 for one Matt |
|
| Author: | craig goss [ Sat Nov 25, 2006 3:03 pm ] |
| Post subject: | |
What condition was that in?? |
|
| Author: | matt van'74 [ Sat Nov 25, 2006 3:08 pm ] |
| Post subject: | |
It is in near perfect condition. New valves, valve seats etc It has some mild head work but nothing dramatic Hope that helps Matt |
|
| Author: | Mike_Byron [ Sat Nov 25, 2006 3:10 pm ] |
| Post subject: | |
I sold one about two years ago for about the same money $400 It has been freshly reco'd - that is ; skimmed, unleaded exhaust seats, new guides and one new valve. All the valve seats were recut and ground. That cost me $250 to have done and I paid about $100 for the original head. Base your selling price on about $400 for a good head. For not much more (give or take maybe three hundred- mostly give) you can have a worked 12G202 from just about any head developer - just as a guide |
|
| Author: | odd [ Sat Nov 25, 2006 3:10 pm ] |
| Post subject: | |
whats the difference between a cooper 998 head and a standard 998 head? |
|
| Author: | craig goss [ Sat Nov 25, 2006 3:12 pm ] |
| Post subject: | |
The 998 cooper was a head designed for a 1100, they are more rare, and are the best standard head for 998's or 1100's. I believe |
|
| Author: | craig goss [ Sat Nov 25, 2006 3:14 pm ] |
| Post subject: | |
Cheers matt what do you believe a 998 cooper head is worth if it has de carbonised values, new oil seals?? Cheers guys |
|
| Author: | odd [ Sat Nov 25, 2006 3:16 pm ] |
| Post subject: | |
so what is it that changes the capacity from 998 to 1100? |
|
| Author: | drmini in aust [ Sat Nov 25, 2006 3:17 pm ] |
| Post subject: | |
The stroke is 0.296" longer on the 1098. Same bore and rods. Piston deck height shorter by 0.148" on the 1098. edit> typo |
|
| Author: | craig goss [ Sat Nov 25, 2006 3:18 pm ] |
| Post subject: | |
Sorry I don't know, i will have a look in Vizards book when I can find it. |
|
| Author: | odd [ Sat Nov 25, 2006 3:18 pm ] |
| Post subject: | |
cheers. I'm slowly learning |
|
| Author: | Mike_Byron [ Sat Nov 25, 2006 3:19 pm ] |
| Post subject: | |
An ordinary 998 head is usually a 12G202 head that is very functional but pretty basic in terms of gas flow and gas burning characteristics. The valves are relatively small and restrictive in terms of fuel mixture in and out. But its a head that has lots of spare metal and lends itself to head modifications fairly well. The 12G295 is a head designed for the more sportysmall bore type A series (Coopers, MG1100s and some sprite/midgets) It has a much better combustion chamber design, bigger valves, better ports and usually uprated valve springs. It (12G295 head) alone gives a healthy increase in performance on any A series motor but when matched with a sporting camshaft, better carburation and extractors can really make a quick little car. |
|
| Author: | odd [ Sat Nov 25, 2006 3:20 pm ] |
| Post subject: | |
so what would the difference in Kw or bhp be between a stock 998 and a stock 1098? roughly. |
|
| Author: | odd [ Sat Nov 25, 2006 3:23 pm ] |
| Post subject: | |
thanks for all the info. So i would probably be better off getting a 12G295 rather than having my 12G202 modified? |
|
| Page 1 of 2 | All times are UTC + 10 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|