HPCOBRA. If you are going racing you want the #12 lines and fittings. If the car is for street with a once in a while adventure to the track, size #10. will be ok. The other thing is which setup are you going with? I think DV is a little lite on cost for a good system with lines and fittings. Good cooler is about $225.00. 2 lines with conectors is about $75.00. If you are going with a spacer between the
oil filter housing and
oil filter another $40.00- $ 50.00 bucks. You will need clamps to hold lines in place. Get the ones with rubber insolators. Here is another $20.00. If you deciede to move the
oil filter to the head like the 427 setups, with bracket, housing and more lines another $150.00. You will also have to be careful with picking up road crap and clogging the cooler. Some guys build schrouds around them for better air flow. There is a couple of down sides to adding a cooler setup. You will loss about 3-5psi on oil pressure. With the cooler getting the oil temp up to coreect operating temps is another thing. I would also recomend that letting the motor warmup before driving. When cold the oil pressure at idle will pin the gauge to 60-80 psi. A couple of minutes will warm the oil and you should see about 20-40 psi at idle and up to 60-80 psi at 2,200 rpms. Some guys have added thermostat housing to help warm and cool the oil too. I am not running one but this is not a bad idea either. There are some posts on here about this to if you search. Rick L. Ps oil cooler range in price from $99.00 to about $300.00. Mocal and Earls sell top of the line. You have $15K in the motor, this is not a part you want to go cheap on. 14 years of racing with the ERA orignial and no failures with 135psi on startups. I run high pressures in my FE.