Ok, I am victim of bad head(s), there was a TSB about the Castech heads cracking. I have slow coolant loss,with no sign of leak. Drained oil today and full of sludge. I need some assistance here. I am going to pull the valve covers to see which head is bad. I have already pulled plugs but couldn't tell which side.
I have never replaced a cylinder head. I am good at working on cars, any advice. How difficult is this, should I be able to do it in a weekend?
Do I need just the rebuilt head, any suggestions where to get them, head and valve gaskets? Any special tools? Any where that I can find a "How to"
Thanks for your help
This ad is not displayed to registered members. Register your free account today and become a member on Truckforums!
not a bad head to pull. easier if you have access to a rack and can pull the front tire and inner fender out. but you can check at least one in a weekend, depending on skill level and how much time you've got.
i'd get head, valve cover, and intake gaskets.
rip: 2002 silverado 2wd 4.8, , airaid mit, trans dapt tbs, redneck ram-air, ravin muffler, no cats, dual 4" tips, 265/75/r16 cooper discoverer s/t
gone: 1989 GMC Jimmy fullsize, carb 350, TH350, NP203, 33x12.50x15 BFG All Terrains, front and rear lockers
Done a few. Pressure test the coolant system and take off the valve covers. If the head is cracked you will see coolant trail in the boss of the head were the head bolts are. It may take a while for the coolant to show but the area will be clean from the coolant. The coolant mixes in the valve cover area not combustion chamber. I will try to find a picture of the area.
not bad to change out cylinder heads, used to work in a cylinder head rebuild shop. one of our competitors was Alabama Cylinder Head Exchange, very good place. should be able to look up online, and get a number and call them. If its the head, but aluminum GM V-8's in my experience the cylinder head doesnt crack, so most likely a head gasket. which would be good for you cause thats a afternoon job or a weekend job if you arent familiar with it.
2007 Z71 5.3L w/ S&B CAI, Predator PPGM( custom tune), Flowmaster series 40 muffler w/ Dual outs, 373 rear. Frequently seen cruising up and down the Autobahn!!!
2005 General Dynamics Stryker 8x8 Cat powered, M2 .50 cal!!!