What to do with my heads?

FeTTstang

New Member
Nov 21, 2006
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So I have a head gasket leak or something. It is leaking antifreeze into the combustion chamber or else I have a cracked head. Also it is bubbling out of the radiator. I have GT40P's and all the mods in my sig. I know my heads are holding me back also. Do you think I would be better off in the long run to buy some new heads or should I get my GT40P's pressure checked, valve job, and ported to better match my modifications?
 
could be a bad gasket or cracked head. i'd yank em off and also check the block where the coolant passage is next to the headbolt holes. my 84 block had a crack there bout 3/4" down in the hole , that was causing my coolant leak.
 
Cost effectiveness would be to have your heads tested then get a valve job and port and polish. Horsepower effectiveness would be to go with a good set of aftermarket heads like edelbrock, trickflow, etc... You may want to consider a set of light weight aluminum heads.