Hey guys I brought a recond rb30 head for my series 200 I noticed at the back of the head it's has a machined type hole on the intake side and checked my original head and that didn't have it I'm thinking it may be a patrol head here's a pic any info would be great

mmm never seen that before

could it possibly be for the carby fuel pump????

rb30s ftw

looking at the to pics i think devl is right

iv always just ignored it, never had an issue

Ok well what was it there for temp probe for cold start ???? Does it need to be blocked off ??

Turn the head on its side and fill it with water if it leaks then worry about if not chuck the head back on and do some skids!

^ I Like this (Y)

Heads already on !!! Oh well skids are definatly happening and with the cometic and arp head studs should be able to last longer lol Ive been told the patrol heads are alot stronger is this a myth ???? Or true any one had any luck using one ???

i'd say its a myth davo, unless the cam tunnel looks any different?

Just like the skyline RB30s are stronger lol. If it doesnt leak oil i cant see how it could be for the fuel pump. Coz how they work is they have a lobe off the cam too push the pump in an out too operate.

Yeah dono what it is maby a coolant line of sum sort il let's you'd know how I get on with it il probly fill the block with water and see if she pisses water out and go from there

it wont leak water, dont stress it does nothing....

Cheers mate that's great means I dnt have to **** around trying to find out the thread size thanks for the info guys