Porting small block 915 j-heads
Happy New Year 12many!
The heads in your pictures were in the UK for development at 'Weslakes' but went back to Chrylser as duds!
They are in the Chrysler Museum wherever that is lol?
Apparently the 'closed off' chamber design was too radical and hurt the 'flame travel'...
They were highly ported as you can see from the pictures.
The heads I have here are the stock for 68-70 'open' chamber.
A direct replacement to the 906 after the 915 of 1967.
Why they never got into production is a mystery as they are obviously 'passenger car heads'.
Very nicely shaped 'ovalport' intakes with extra cooling passages for heat travel.
This design was used in much later 'Motorhome heads' to overcome 'hotspots'.
These heads I have here un 'unported' as cast and are different port designs as well?
One head has cast in guides like a 906, the other is much more modern looking with the guide sitting in the port...
Plug location slightly towards the intake valve which is 2.250 in diameter!
Happy New Year 12many!
The heads in your pictures were in the UK for development at 'Weslakes' but went back to Chrylser as duds!
They are in the Chrysler Museum wherever that is lol?
Apparently the 'closed off' chamber design was too radical and hurt the 'flame travel'...
They were highly ported as you can see from the pictures.
The heads I have here are the stock for 68-70 'open' chamber.
A direct replacement to the 906 after the 915 of 1967.
Why they never got into production is a mystery as they are obviously 'passenger car heads'.
Very nicely shaped 'ovalport' intakes with extra cooling passages for heat travel.
This design was used in much later 'Motorhome heads' to overcome 'hotspots'.
These heads I have here un 'unported' as cast and are different port designs as well?
One head has cast in guides like a 906, the other is much more modern looking with the guide sitting in the port...
Plug location slightly towards the intake valve which is 2.250 in diameter!