Full details are in this (copyrighted) technical paper. Brief description here:
| Slant Six Forum https://slantsix.org/forum/ |
|
| Aluminum Slant Question https://slantsix.org/forum/viewtopic.php?t=59684 |
Page 1 of 1 |
| Author: | dart4forte [ Tue May 24, 2016 4:44 pm ] |
| Post subject: | Aluminum Slant Question |
Been awhile since I last posted. Aluminum slant six, were all the heads stamped "SPECIAL"? Local guy has an aluminum motor however the head is not stamped "SPECIAL". The head as a riveted plate with no other markings |
|
| Author: | SlantSixDan [ Tue May 24, 2016 5:14 pm ] |
| Post subject: | Re: Aluminum Slant Question |
No, only the first batch of heads for the aluminum engine were marked "SPECIAL". The next batches had plain plates or 5-pointed stars, and the last batch had the 2206035 casting number and was used on both iron and aluminum engines. |
|
| Author: | ProCycle [ Tue May 24, 2016 6:20 pm ] |
| Post subject: | |
What was special? Is it just more accurate location of the combustion chambers and other features? Or are there other significant differences? |
|
| Author: | dart4forte [ Tue May 24, 2016 6:43 pm ] |
| Post subject: | |
Thanks Dan. Been awhile since ive had a conversation about the subject. I think his plate has the star. |
|
| Author: | Dart270 [ Tue May 24, 2016 6:55 pm ] |
| Post subject: | |
I believe chamber/casting dimensions and registration were the only improvements. Lou |
|
| Author: | SlantSixDan [ Wed May 25, 2016 12:02 am ] |
| Post subject: | |
Slightly smaller combustion chamber with more accurate placement consistency, notched pushrod cavities to provide the necessary extra clearance for the angle the pushrods sit at in the aluminum engine. These changes were incorporated on all \6 heads officially for the 1963 model year, but actually during mid-late '62 production. |
|
| Author: | Rick Covalt [ Wed May 25, 2016 4:51 am ] |
| Post subject: | |
Quote: the angle the pushrods sit at in the aluminum engine.
They were different than the cast iron engine?? I never knew that.
|
|
| Author: | Dart270 [ Wed May 25, 2016 7:11 am ] |
| Post subject: | |
Whoa, yeah, tell us more... Lou |
|
| Author: | SlantSixDan [ Wed May 25, 2016 9:58 am ] |
| Post subject: | |
Full details are in this (copyrighted) technical paper. Brief description here:
|
|
| Page 1 of 1 | All times are UTC-08:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|