Hya

Head is of - I am CC ing it and the Block tomorrow - Bigger valves, portwork , skimming, hardened exhaust valve seat to be done this coming week




BTW what is up with the 2 water passages being blocked of by the head gasket?

_________________
Regards,
Fanie Gerber
It's never junk, it's just a part you're not currently using

http://www.valiant50.co.za
Just say I own a few Mopars

The water has to flow through the block before it comes up through the large transfer passages at the back of the block. Some also flows through the holes below the exhaust valves. If the big hole at the front of the block were let open most of the coolant would bypass the block and head.

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Joshua

Thought as much -

Is there any info that can be gained from the casting numbers on the head?

I notice that the head does not have the casting dot... which means it has the revised combustion chamber if I understand Doug's article correctly

BTW the valve springs are green in colour ...ideas on this?

_________________
Regards,
Fanie Gerber
It's never junk, it's just a part you're not currently using

http://www.valiant50.co.za
Just say I own a few Mopars

Do you know where your engine was cast? I'm wondering if your casting numbers would correspond to US or Mexico casting numbers or not. Good pictures are probably best for identifying pertinent features.

The valve springs were probably color coded according to use, but unless we find someone that worked the assembly line back then the specific color and application may never be known.

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Joshua

Will take them tomorrow - as we had it the blocks where cast over here - local content by weight issue but stuff was imported as well

BTW my chamber volume is 59cc
the volume above piston at tdc is 29cc

I need the gasket diameter and compressed thickness to finish my current calculation please

_________________
Regards,
Fanie Gerber
It's never junk, it's just a part you're not currently using

http://www.valiant50.co.za
Just say I own a few Mopars

The 225 I pulled out of a 71 d100 has the 5 plugs & extra ribbing- BF casting.
The valve springs on it are green as well, dunno if this helps or not.

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<img src="http://farm4.static.flickr.com/3173/2992308402_5481afb26e_t.jpg">

Got the info out of one of joshes other posts..

http://kb-silvolite.com/calc.php?action=comp used this tool

7.52

so to get to 9.5 i need .14 of the head - is this viable?

_________________
Regards,
Fanie Gerber
It's never junk, it's just a part you're not currently using

http://www.valiant50.co.za
Just say I own a few Mopars