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Yep.. use the suggested value of 7qt as an estimate. Almost positive the 370 and hr350 share the same bottom end, there are a number of variables that can change the actual amount required. Best bet is start reading the dipstick after 5qt, slowly add the 6th, 7th or 8th as required.
7qt with a gtm spacer and 19row setrab ~4' -8an tubing brings me almost to the full line. Confirmed. 4 oil changes now... 28qt of damn oil already.
hey, i just rechecked my dip stick level and i'm a lil below the "H" now. i'm guessing i have a little over 7qts in there with the JWT spacer and 19 row oil cooler. thanks for your help and a few pic's should make this thread better lol.