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My new head is making a loud knocking noise. I have lots of compression on each cylinder, but I have this annoying ticking sound that makes my car sound like a VW bug. The head was ported and the valve seats hardened. It has all new seals and a used 91 mustang roller cam with brand new double springs. I checked the clearance between the lifters and the rollers and there isn't any clearance excessive play actually there is no play according to my feeler gauge. The only other thing that is used is the hydraulic lifters, so I am going to give that a shot unless anyone has a better idea. My question is what size lifter do I go to-stock, .010, .030, .060
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!
