The Stovebolt Site Forums The Shop Area Engine Shop 248 remote filter

having been to the gmc truck website, i have read that the 248 should only filter 30% of the oil. can i install a remote filter on the firewall? which line is in to the cannister and which is out. as long as i only use these two lines the bypass should still be in effect right?. any thoughts before I buy the parts?

this is a continue from the first post. there is a hard line from the block to the cannister from the bottom. the other is a hose on top side of the cannister going to a tee on the drivers side the other part of the tee goes to the head by the thermastat housing, which is supposed to be the return. i also found the sending line to the gauge which is back by the firewall. this seems to possibly work in my head, but I would like to hear from someone who knows more than me. thanks in advance

The stock filter on a 248 is a bypass filter. You can convert your engine to a "full flow" oil filter. YOU WILL NEED TO DRILL AND TAP YOUR ENGINE BLOCK! There has been a lot of discussion on this topic at www.oldgmctrucks.com. The inliners site also has the procedure outlined.

The basic stock oil system takes oil fro the pump and sends it into an oil galley that is drilled the length of the engine block. The oil is sent directly to the main bearings and out of the engine at that funny T fitting. From there oil is pumped to the rocker assembly and to the bypass filter. The oil is filtered and then dropped back with the dirty oil in the oil pan.

The upgrade is to reroute the flow of oil from the pump to a filter and then back to the main galley where "clean" oil will be oiling your main bearings. According to California Bill Fisher... crfankshaft wear will be reduced by 50%, wrist pin wear by 66%, cylinder wall wear by 19% and ring wear by 52%.

I hope this helps.