cant get those damned motor lift bolts out. they wont budge. even with pb blaster. dont want to break them. any other suggestions? the other header bolts came out with little effort. another thing is on the passenger side header when i pulled out the bolts they were dry. on the driver side headers when i pulled out the bolts they were oily. do i have a leak on the driver side somewhere? what would cause that? valve or head gasket?