rustrocket Posted July 30, 2009 Share Posted July 30, 2009 When looking at the front of an lsx block where the water pump mounts, there is a round hole on top and a rectangular hole on bottom (a pair of these holes on each side of the block). So, does the coolant come out the right side of the block and back in the left? Or does it come out the round holes and go back in the rectangle ones? I've done some searching but havent been able to find a solid answer. Any insight would be helpful... Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted July 30, 2009 Administrators Share Posted July 30, 2009 (edited) In, and then back out! Edited July 30, 2009 by BRAAP Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted July 30, 2009 Administrators Share Posted July 30, 2009 (edited) Sorry about that. I saw the title and... you know.. LSx engine have traditional coolant flow, block first, then the heads, and out. The LSx has both the in and out ports in the block, in is low (rectangular port) , out is top (round port), each bank of the engine is separate, merging/diverting in the water pump! GM LSx coolant flow path; Hope that helps, Paul Edited July 30, 2009 by BRAAP Typos Quote Link to comment Share on other sites More sharing options...
rustrocket Posted July 31, 2009 Author Share Posted July 31, 2009 Thanks. Exactly the answer i needed, although it makes my original plans more difficult. Quote Link to comment Share on other sites More sharing options...
chris51881 Posted July 31, 2009 Share Posted July 31, 2009 BRAAP is the man!! you just can't shake this guy..... Quote Link to comment Share on other sites More sharing options...
zed240au Posted August 2, 2009 Share Posted August 2, 2009 i used jtr radiator and found that i needed to pull top radiator hose off to to fill engine and heater core with coolant plus i pulled on heater hose off and filled that to get coolant system full of coolant other trap i found with coolant system was changing radiator cap to suit gen 111 coolant range which meant going from datsun suitable radiator cap to 19 pound gm suitable cap Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.