ok i have a question these heads look like they use the es plugs but the 1 i have about 1 thread stick out on mine all other heads i have the plug thread ends flush and just the plug tip sticks out.
i've att a pic of a stock head just as an example (so you can see what i mean both holes stick out 1 thread on the r&d) the left side is what it looked like just wondering if any body has one not installed they can check (reason i ask is mine had been helicoiled so im just checking) as i don't want the piston collection agency comming :biggrin:
i've att a pic of a stock head just as an example (so you can see what i mean both holes stick out 1 thread on the r&d) the left side is what it looked like just wondering if any body has one not installed they can check (reason i ask is mine had been helicoiled so im just checking) as i don't want the piston collection agency comming :biggrin:
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