What's needed big valve head

Y

yaristurbo

Member +
Hi guys
Anyone know what size valves they are or whAt they come out of?
Who can do machine work?
Porting sizes?


And can arp studs be fitted safely while engine in car??
 
S

Skalabala

Member +
Studs can be fitted safely but think you will struggle a bit with drilling and tapping.
Port sizes will be about 1mm bigger
Valves 1mm bigger
Valve throats 2mm bigger.

Really depends on who builds the head and for what.
A great porting job with standard cut valves should work great.
 
H

hkspower

Member +
Hi mate. At Zisco thay do heads or if you want you can have valves ready for you no machine just a good inginer ....

Thanks
 
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