kalebm22

iTrader: (2)

i purchased the full srp gasket kit off summit for 175. but my question is will the head gaskets in this kit support 12.3 to 1 compression and atleast 200hp shot of no2?
if it wont then what head gasket would you recomend?

Z28Camaro30Ann

iTrader: (15)

What is the thickness and bore size of those SRP Head gaskets? Have a part number?

If you wanna get high compression you need a thin head gasket with smaller bore size. Cometic can custom make a .027 thickness head gasket with your bore size such as mine would be 4.040, but they cost about 100 each...

Mr. Gasket is the brand I used because they are the next best and ALOT cheaper. Mr. Gasket has the smallest pre-made with .026 thickness, 4.100 bore size...

Z28Camaro30Ann

iTrader: (15)

with my LE2 heads, -4cc pistons, and Mr. Gasket head gaskets I should be somewhere around 11.5 to 1 CR

kalebm22

iTrader: (2)

im not sure what the part number is, i am more or less just looking for what headgasket will hold up to high compression and nitrous on my 383. i ran the mr gasket on my stocck bottom end and it worked good but i dont know if they will hold nitrous or not

Z28Camaro30Ann

iTrader: (15)

What thickness is the gasket, do you know?

kalebm22

iTrader: (2)

well im thinking its .036 but im really not sure. it is egg shaped holes for the pistons.

RamAir95TA

iTrader: (2)

You're talking about gasket thickness in the thousandths of an inch, which translates into SCR in the hundredths of an inch. There is no measurable performance difference in dynamic compression from a .026 to a .027 gasket.

Fact is, either one of those gaskets will work fine. Stop worrying about your static compression also as it means jack squat.

FWIW, I use the Impala gaskets at .028". Tried and true.

Wicked94Z

iTrader: (26)

since its a 383, i'm assuming his deck height will be different than stock, and not have the pistons .020 in the hole. I'd say this is pretty crucial when selecting a head gasket, can't have the quench too tight. my pistons are .007 out of the hold, with a .040 compressed MLS Gasket 4.100 bore. Don't want your quench much tighter than that...

kalebm22

iTrader: (2)

wat are you talking about? when did i ever say anything about my compresison. if you read the posts i want to know if there is a betteer nitrous head gasket or something that will handle quiet a bit of compression. im not worried about every last thousands on the compression. i really just want to know wat a good nitrous ready gasket is. thanks.

Wicked94Z

iTrader: (26)

how do you know you're compression ratio without knowing deck height and gasket thickness, assuming you know what your piston dish/dome volume is and chamber cc... deck height dictates gasket thickness to acheive the correct quench, which is CRUCIAL when running high compression on pump gas. A cometic gasket is the best for nitrous, but your heads and block better be perfectly flat, you can order them any thickness you want, but they're kinda spendy.

kalebm22

iTrader: (2)

yeas i ccan get get the piston and deck height i need to set my compression ratio and quench where i want it. i just needed to know what gasket i needed before i could figure that out. would the mr gasket gaskets work? i really liked them and lloyd recomended them to me for my head and cam package on the stock motor

RamAir95TA

iTrader: (2)

It would make more sense to select a head gasket thickness when you know your finished deck height and CC volume.

kalebm22

iTrader: (2)

i can do that to, by wat u guys are saying any headgasket will work for high compression and 200+ nitrous? if thats the case then it will make things alot easier, i just find that hard to belive

RamAir95TA

iTrader: (2)

I have high SCR and DCR and plan on a 150-200 shot on my 383, and I'm using the Impala HGs.

kalebm22

iTrader: (2)

ok thanks, thats what i was needing to know