Hi everyone.
After many years with a odd issue of getting oil in my water and changing just about everything I have come to the conclusion I may have a crack head.
Can someone kindly point me in the right direction of this "oil gallery" in the head that may be cracked? and what to look for.
Also the current head is quite a high specification.
Ported and gas flowed,
Valves seats as large as possible with standard size valves.
inlet and exhaust tubular manifold matched to head.
Uprated valve springs.
I run around 19 PSI at the moment with good fueling, realistically if I fit a standard head (if my one is shot) will I notice any differance? or will i be best to get the replacement head worked on to the same spec?
It will be a real shame to scrap it. I must also test to see if its been overskimmed!!!
last question, the pistons are Low comp pistons 7.4:1 CR, any idea what figures I should get during a compression test? what is the standard compression ratio? I belive a standard engine is around 145?
Thanks in advance.
Oh the joys of having the car running after 4 years..............