I am not well educated in the realm of porting . I have done searches and done some reading but still have a few questions .
There is a new shop that recently opened up near me that does head work , with it being a new shop I am kind of skeptical and want to be educated a little bit before I just go and drop off my heads .
I recently acquired a nice used set of GT-40P heads . They are still fully assembled . Do I need to disassemble and clean them before dropping them off to be ported ie: remove old gasket material , degrease them , remove rockers , springs and valves?
If I remove the valves do they need to go back into the exact chamber I took them out of or is it ok to put them back at random , should anything be done to the valves themselves? After port work is done is it ok to re-use stock valves ?
Is using a flowbench typical of the porting process before and after to see if gains were achieved or is this something I would need to pay extra for and if so is it worth it?
These heads will be part of a street driven set-up which will include ported explorer intake , TFS stage 1 cam and 1.7rockers .
Also as far as the intake is concerned , the heads should be ported first then the intake to match the heads or doesnt it matter as long as they are ported to the same gasket?
From my research this is what I would like to have done : Gasket match intake and exhaust runners (to what gasket should they be matched?) , cut the EGR bump down , smooth everything out and open up a bit in the runners and the bowls . Does this sound correct and typical of decent port job?
One more thing , when a "valve job" is mentioned is this work that is actually done to the valves or the area of the head where the valves are located?
sorry for so many questions and thanks in advance for your replies!
There is a new shop that recently opened up near me that does head work , with it being a new shop I am kind of skeptical and want to be educated a little bit before I just go and drop off my heads .
I recently acquired a nice used set of GT-40P heads . They are still fully assembled . Do I need to disassemble and clean them before dropping them off to be ported ie: remove old gasket material , degrease them , remove rockers , springs and valves?
If I remove the valves do they need to go back into the exact chamber I took them out of or is it ok to put them back at random , should anything be done to the valves themselves? After port work is done is it ok to re-use stock valves ?
Is using a flowbench typical of the porting process before and after to see if gains were achieved or is this something I would need to pay extra for and if so is it worth it?
These heads will be part of a street driven set-up which will include ported explorer intake , TFS stage 1 cam and 1.7rockers .
Also as far as the intake is concerned , the heads should be ported first then the intake to match the heads or doesnt it matter as long as they are ported to the same gasket?
From my research this is what I would like to have done : Gasket match intake and exhaust runners (to what gasket should they be matched?) , cut the EGR bump down , smooth everything out and open up a bit in the runners and the bowls . Does this sound correct and typical of decent port job?
One more thing , when a "valve job" is mentioned is this work that is actually done to the valves or the area of the head where the valves are located?
sorry for so many questions and thanks in advance for your replies!