Thread: head resurfacing, deck heights and gasket sizing.

I will measure tomorrow what the thickness is so that we could get a idea of the thickness of the gasket you will have to buy to compensate for the cut. I left the mic at home when I went to the shop today.

thank you. your going to measure the thickness of a stock head ?

if i had one laying around id do the same, i appreciate it !

stratton.

yes, I have 2 heads so I can get the measurement.IT will be after 6pm thats when I get out of work and head to the shop.

cool shit. agian i appreciate it.

now to decide what i wanna do.

this time the game plan is keep it simple STUPID lol.

stratton.

i say this time around do an 88mm high comp build with enough room for a 100 shot

1 millimeter = 0.0393700787 inches


Cometic Head Gasket Nissan SR20VE SR20VET 86mm x 2.0mm

posting this info for use tomorrow.

imma do something, stock sleeve for sure, stock crank.

stratton.

The suspence... Lol.

Stratton.

1. How much does the piston measure above the deck.(stick up)
2. We know the pocket in the head is .027 to .029 correct.
If the piston sticks up say .030 from the head, the piston will not hit the head with a 1.0mm gasket. do the math.
The 1.0mm gasket (.039) will have .009 clearance from the base of the gasket. add the .027 this will give a clearance of .036. The reason the pocket is machined like that is because of combustion, But this can also give a piston some room to come above the deck. As long as the gasket will clear the piston you will be ok. (bigger bore gasket). Make sure the bore in the head will clear the piston. The only issue you have is piston to valve clearance. You need to assemble the motor and clay this. you need at least .020 for this. if its any less you will have issues. If the clearance is too tight then 2 options thicker gasket or notch the valve relief deeper.

Gio any numbers ?

Mazworx 90mm head gasket is 1.2 mm thick.

Stratton.

im going to sit down and crunch some numbers after diner.

stratton.