Well actually no.....
Composite gaskets work better with a coarser surface finish.
As the head and block move in use the "teeth" from the cutter marks bite into the gasket giving a better seal.
Can't do this with a MHG as it's non deformable, composites have .6mm of crush.
LMAO don't know about "best" as supplied it was a pileOshit and you couldn't turn corners without it skipping an inside wheel and clanking/crashing!
(mine has the preload pack to prevent it losing drive if you lift a wheel)
This IS me being nice ;)
Like most problems it CAN be solved by copius amounts of $$$, there's a HUGE aftermarket for the 9" so parts are really cheap and this offset's the custom parts needed to make it work.
Actually on pre 89 blocks those cracks are common :(
My bud's 28 thousand mile 87 has em.....
The one in the web isn't a problem just looks bad.
The Bolt hole one is a concern if it was going to be a performance application, I'd carefully countersing ALL of the holes in the deck (I...
J: If you head and parts check out ok no reason not to use them.
You just need to 0 the Cams and sneak up on a safe setting on the Dyno, what worked for the 1J isn't going to be the same for the 2J.
I'd be interested to see the insides of the 1J.
(ring lands in specific)
Lots of overlap = low cylinder pressures so you can get away with the timing/boost you were running
Less overlap ie: Your cam settings = High peak cylinder pressures and you either need to back the timing down or the boost or mechanical damge will happen.
Why did you open the cams up so...
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