Filter adapter sourced from ebay, as I was cleaning it up some I noticed this crack. Seems like Ive seen this before but not this pronounced. What say the committee?

What brand/model number will work in truck application with an NP435. with mechanical shift fork. I am unsure of the differences most stuff is listed for top loaders of which I know nothing about.

Having issue with my cooling fan running all the time. When it does shut off its not for long. Lots of differing opinions on what temp switch should be used with certain degree thermostats. So I thought I would ask here, for more differing opinions!

Turbo 390 in a 50 F1, Champion 3 core drop in fit. (fits great too) Homemade flat shroud that covers entire surface but not as deep as I would have liked it, maybe 3/8" deep. One 14" high flow Spal and one 7.5" Spal. Both pulling. Only running the big fan as it seems to keep up fine, figured only kick the little one if it gets hot. Or thought run it all the time to reduce cycle time of the large one. Really need to add another switch or get a dual temp. Probably a dual temp, I'm out of ports.. Kick the little one in early then the big one is how I would really like it. Kinda like a 2 speed fan.

180* stat with couple small holes drilled for bubbles. Engine does not over heat, haven't seen it much above 200 usually around 190 to 195. Fan switch is 200 on and 180 off installed in thermostat housing. Used a 195 stat for awhile which I'm fine with but I'm trying to drop the temp a little for fueling reasons. (heavy ends in lpg fuel). Hence the 180*

Do I need a switch with a lower range? Say 185 on 175 off?? Need more airflow? I didn't think so since it doesn't overheat. If both fans are on it does seem to help but not much.

No this isn't about a Cummins PT pump, thank god lol.

Oil pressure, how long from engine start until you see the gauge physically move??  I'm curious how my 390 compares to the average.

Looking for a new set of piston pin locks for stock 360/390 piston. Haveing trouble finding exactly what need on Summits website. Anybody got a part number for stock replacements or upgraded lock that will fit stock pistons?

Pulled a block out last night to look over and do a few oil mods to in anticipation of a future low buck grenade motor. I believe this to be a late model 360 that has never been gone through. Stock bore nothing out of the ordinary so far with the exception of the attached pictures... First FE block Ive had like this, there was also an area along on the pan rail about an 1.5" with several porosity holes. I forgot to snap a pic of that area but it is much worse but in an area that shouldn't effect anything.

Has me a little concerned since I'm shooting for 400hp on this build with some questionable parts, or maybe this is the perfect block for such a build? If I was building something for a driver I wouldn't worry about it.

What are your thoughts??