Help! Fresh 5.3 mls coolant leak!
06-22-2017, 06:33 AM
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Help! Fresh 5.3 mls coolant leak! Hey there folks. ..need some help figuring out what could be going on with my 5.3 build. The block is a new gen 3 block from summit and heads are from an 08 silverado. Got this thing together with mls head gasket and seems to be leaking down the side of the block on both sides. Oil is clean. Used new bolts ...gaskets went on clean and dry. Any ideas?
06-22-2017, 09:37 AM
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which heads?
06-22-2017, 04:05 PM
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OK. I was curious if you happened to use 853 or 241 heads off a LS1 for boost or something. THose heads have a notch and MLS gaskets won't seal.
Unlikely you're dealing with that, but I'll throw it out there in case you find an oh ****
Unlikely you're dealing with that, but I'll throw it out there in case you find an oh ****
