Quote:

Sorry to jump in with a question: But my new 408" has what I would say unusual high oil pressure...75# - 80# at idle completely warmed up....I switched from 20/50 to 10/30 as suggested in another thread and it did lower it to 65# - 70# but still climbs to 100# as the rpms climb? It does have a Mellings HV pump and also we threw a 90* oil filter adapter on it as it was all we had lying around....it is untouched (meaning it has never had any of the neat tricks I've read about done to it to improve flow). I also run a Wix 51515R filter.

Motor seems to be getting plenty of lubrication where neede.

Could the 90* adapter be the problem or at least part of the problem...??????

Or am I just overly concerned...??????

Thanks in advance,

Rickster




I had the same problem on my 416 with the melling HV I took it off and threw it in the trash and went with a standard pump problem solved.I still have 35-40 at idle with oil at 160 and 80 in the traps.


70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4