Remanufactured Heads
I have a 1996 Suburban K1500 with 250,000. Until my son ran it out of oil, it
was an incredibly solid reliable vehicle. Since then I've driven it across
country and back twice but it is running increasingly rough.
I think it has a burnt valve and a blown head gasket. Symptoms: Runs
rough especially wile accelerating but runs fine on interstate. Compression
is 210 in all cylinders except #6-165 and #5-40. A wet test on these two
cylinders is: 6-185 and 5-45. Engine oil looks normal, not milky but without
any visible leaks the radiator is losing 1.5 gallons every 200 miles or so.
Three questions:
1. does my diagnosis make sense?
2. where is the most economical place to purchase decent rebuilt heads?
3. My original heads are cast iron and I see aluminum heads for sale that say
the fit my suburban. Should I stick with the cast iron heads?
