Headgasket question

1FastBrick

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Speaking of needing help. I have a Question about Head gaskets on a built motor if any one can help?

LBZ .020 over bore with Racecast pistons. Forward edge I have .008-.009 Piston protrusion and .006 on the rear side directly over the pin. Running standard head studs if it makes a difference. I think I was .0030-.0032 mains and .0024-.0026 rods on my clearances.

Only looking for about 600-650 Hp. What Grade should I go with?
 

TheBac

Why do I keep doing this?
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Plus, a C gasket takes into account most any variable when it comes to protrusion. Protrusion beyond a C, Id think you'd want to start checking other parts, like the rod, piston or crank first.
 
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1FastBrick

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Moved this into its own thread. It wouldve gotten buried in the thread on my Regal.

Dont most people just go with grade C nowadays?
No worries. I originally thought that was the Monthly BS thread with all the thread derailment.

After I realized it wasn't, I knew you would fix it... :ROFLMAO:
 

1FastBrick

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So to answer all the questions, Yes I got the standard C as that is usually in most kits. Not a problem as I had no Idea what was needed until everything was machined and mocked up.

I want the engine to be as efficent as possible. On the Gas side of things, The Quench does make a noticable difference. Not sure if its the same in a diesel.

I had seen some questionable things posted in various places so I thought it better to ask. I would rather do it 1 time than be disappointed making a mistake or worse off having to do it over in the truck if it caused an issue of sorts...
 

Dallas S

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We have never had an issue keeping it tight at those power levels. Cold starts seem better and mpg definitely doesn’t suffer from tighter quench. I would be putting A on if I was ordering gaskets/availability
 
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1FastBrick

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How much are they, in stock? I'd just assume to order them through Summit, the Mahle gasket is around $85
Of all places, Rock Auto shows them in stock. Couldn't find them anywhere else.

left is 58.79
right is 92.79

Not sure why the difference left to right but whatever.
 

PureHybrid

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A lot of stuff through Summit seems to be mfg direct order with a lead time. I've never experienced unnecessary wait though