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I inhiereted a mls head gasket.It is a 5 layer one.my question is do these mls gaskets come in different thicknesses ,are they reusable and because my head has been skimmed is it gonna stuff around with my compression ratios.is there a way to work it out or is a standard head gasket just as good.im going for forged pistons as I have to rebore slightly due to a bit of cylinder damage anyway.cheers

hey guys this morning i went to go for a drive but i had a feeling i should check my fluid levels before i do so and i did, i found a lot of oil in my coolant, we pressure tested the radiator and it held pressure well very small drop in pressure after 15mins, and also did compression test which came back ok. am i looking at a suspected blown head gasket here? or are there other places where the oil could have gotten into the coolant from?

rb25 86.5 mm bore and Genuine head gasket???? Can anyone tell me if using a genuine head gasket on a 86.5 mm bore will be ok? I know the gaskets aren't spot on but just unsure and would rather use genuine all round then Anything else especially with the tolerance issues that come with metal gaskets

RB25 with Thinner MLS Headgasket (0.76mm) I've done a lot of searching but haven't found anyone who has tried this before (possibly for a good reason?). My R33 is a track car and I'm rebuilding my RB25DET after cracking a piston ringland, I was running E17 but will be going E85 for the extra safety that offers. For the time being I will be continuing to use standard pistons (with a hone and new rings). I'm considering ARP head studs as I'm getting sick of buying single use OEM bolts (this is the third time the head has come off now) and I'm looking at a MLS head gasket for the same reason. My calculations seem to indicate that going from the stock head gasket (1.1mm compressed) to a 30 thou head gasket (0.76mm) will raise my compression ration to 9.3 which would be a nice bump with E85 use (standard turbo, with plans to go highflow later on). Has anyone attempted this before (or shaved the block for the same effect)? My main concern is the effects this will have on the quench area, I'm using standard cams so valve clearance should be okay.

Garage Clean out For sale bits and peices (all bits are negociable) Postage at buyers expense, Pickup from brisbane. $45 - K&N power intake Pod Filter Good condition, used for about 25k original prie $180 $50 - RB25DET MLS Metal Head Gasket (reusable at least 2 more times), needs clean. measures at 1.1mm $35 - D1 Spec Oil Catch Can, used, good condition has all fittings , no hoses as they are cheap and were binned anyhow. $25 - Cooling-Pro 13 Row old large tube fin style Oil Cooler. was used, replaced with bigger 19row, will need good clean. $10 - R33 Clutch fan, clutch in good condition, some light cracks, but normal on fan this age $35 - R33 S1 Dash Cluster, good working condition 200+xx kms $120 (6) - R33 S1 Coil packs, came off good working motor, no issues no cracks. if you want seperate, cost $40 each. $35 - R33 S1 Rear Spoiler, Very good condition, no scratches, light perfect working, color: Silver $25 - R33 S1 front Grill, good condition, bit dusty $30 - R33 RB25DET exh manifold and head sheilds, good condition, no cracks $25 - RB25DET Fuel rail complete with Sard reg adapter (front) $25 - R33 Stock front Swaybar, good condition with stock rubbers $175 - R33 Whiteline 24mm Heavy duty Sway bar, used 0kms, was fitted to car, but didnt clear ASR sump. so its brand new with some grease and a few light scratches on it. cost me $265. comes with whiteline Bushes. $40 - RB25DET cams, they look pretty good, no visable damage, will work fine as replacement for lunched cams. I probably got some more bits and peices there for sale, including complete rb30 Series 2 long motor, and rb25 head complete prepped for 30/25 w/vct and rb25det bottom end in good condition. (will post this gear soon). All prices neg, sms or call the number provided, probably wont reply to forum posts as not online alot. dale - 0419745910