W7 INFO
@yellow rose
Ive heard the same thing about the 7 head.
On the W5. The porosity issue is worse than you state via most every owner of a 5 head I met. (Not internet speaking with)
And 3 people here that wished me luck with the 5 head.
When Brett Miller ported my heads he told me he tried to weld them but could not due to the crap aluminum used by the foundry screwing Chrysler like a 50 ***** on a cross country train ride. (And with many stops!) Epoxy was used and the porting stopped.
Also, are not the 5 head stands milled or is this a partial IYO?