| ausmini https://ausmini.com/forums/ |
|
| 12G940 head. https://ausmini.com/forums/viewtopic.php?f=2&t=92741 |
Page 1 of 1 |
| Author: | 70K1100 [ Wed May 25, 2016 9:39 pm ] |
| Post subject: | 12G940 head. |
I came across a 940 head whilst cleaning up my workshop. The head has 35mm inlet valves and hardened valve seats in exhaust valves. However I looked at the ports and they measured out at approximately 30mm. I looked at my small valve 940 head and the ports are about the same size. Will the bigger valve head still flow enough to handle a 266ss cam and Vizardised twin HS2 carbs. I read that the Morris 1300GT produces about 70hp new and 74ftlb. Would this head flow enough to produce similar? |
|
| Author: | drmini in aust [ Wed May 25, 2016 10:25 pm ] |
| Post subject: | Re: 12G940 head. |
Yes it will be fine. Mk2 S head just had the 35.6mm inlets and stronger springs. Ports were much the same. The major flow restriction is at the valves on a 940 head. |
|
| Author: | 70K1100 [ Thu May 26, 2016 12:28 am ] |
| Post subject: | Re: 12G940 head. |
Thanks Dr Mini. It will save a few dollars not having to get another head built. |
|
| Author: | 71morris [ Thu May 26, 2016 10:44 am ] |
| Post subject: | Re: 12G940 head. |
If you believe you have a standard S head where do you by brand new valves? Is UK usually the best EN steel? Do you usually measure the valve with vernier calipers? |
|
| Author: | winabbey [ Thu May 26, 2016 1:04 pm ] |
| Post subject: | Re: 12G940 head. |
71morris wrote: where do you by brand new valves? The usual Mini spares places will have them - viewtopic.php?f=41&t=83593 Here's MKO as an example - http://minikingdomonline.com.au/product ... ts/page/3/ |
|
| Author: | 71morris [ Thu May 26, 2016 3:22 pm ] |
| Post subject: | Re: 12G940 head. |
Is there any difference in quality from minispares UK with the cooper S EN steel exhaust or inlet valves compared to sales in Australia you would buy the new AEG valves I believe |
|
| Author: | simon k [ Fri May 27, 2016 11:03 pm ] |
| Post subject: | Re: 12G940 head. |
I have these in my car, I bought them when Lindsay was still running the business and he recommended them, saying that's what he uses in his race engines http://www.minisplus.com.au/old-shop/pr ... d-race-ser the exhaust version is on there somewhere |
|
| Author: | simon k [ Fri May 27, 2016 11:06 pm ] |
| Post subject: | Re: 12G940 head. |
this might be it - http://www.minisplus.com.au/old-shop/pr ... -exclusive |
|
| Page 1 of 1 | All times are UTC + 10 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|