problem after swapping head

  • Thread starter Thread starter erebunicrx
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erebunicrx

my name is Dale
i just put a 95 ls head on my ls and now i have really low compression in the 2 middle cylinders. before i started the head swap i did a compression test and got
185 +- 1 all the way accross. now after adj the valves to spec and puting all new gaskets on i only read 170, 145, 125,170. i put oil in the cylinder with 125 and jumped to 155. do you guys have any idea what the hell happened.
 
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