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Old 10-11-2018, 06:54 PM   #3
Swedbrick
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Join Date: Oct 2016
Location: Netherlands
Default Getting serious: headwork

For part 2 of the build, it was time to get into some headwork, I chose to go for a mild port and polish, with cleanup of the valve seat to port area, slightly worked valve guides, a controversial dimple port since the stock volvo injectors which I intend to use in pairs are not really great in terms of atomisation. The head worked was a 530 casting, since this was my first experience porting, and 531's are hard to come by.

The stock head ready for disassembly


The stock port


Reworking the sharp edges and blending the valve seat and port gently with the dremel tool


Deshrouding the valves with the head gasket for reference


Changing the chambers to more represent the 531 head in terms of flame front propegation from the sparkplug


The finished chamber, dimple port also included


Polished up the valves to a shine in the drill press with cloth to protect the surface




Relapping the valves


CC'ing the chambers, worked out well


Installing KGTrimmning dual valve spring kit with light weight retainers, ready for 7k rpm


Assembled head, ready for installation, only relube and chamber polish required.
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Volvo 745 - IPD springs, Sways, K-cam, LH2.4, M90 swap, 3.94 diff, track/daily

Last edited by Swedbrick; 06-03-2019 at 04:25 PM.. Reason: fixing the images
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