can i use steel shim heads gasket with aluminum heads

 

You can, but they may damage the mating surface on the aluminum head. Some can, some can't - depends on how they are made. Best to check with the mfg of the gasket if it doesn't specifically say you can or can't use with aluminum heads.

 

i used the felpro embossed steel shim for my motor.. 4.100x0.015.. aluminum heads too.. i would highly suggest you go buy a spray sealant for the gasket.. i used some copper spray.. works fine.. put a nice coat on the block, both sides of the gasket, and the head.. be generous.. lets see if i can find a pic of the stuff i used.. here we go.. same stuff i used

 

ah good old head gasket grease hope your block is flat if you use that stuff

 

i have bought a set of sce head gaskets the other day .015 in. do u think these will mess up my heads

 

they shouldnt mess up your heads.. also, make sure your block deck and heads are FLAT.. if its a little warped, it will leak.. .015" is not enough gasket to seal itself..

 

ok i got a new fel pro gasket set to what heads gaskets come with it like .039 or what any idlea

 

if you dont mind me asking, why do you want to run a steel shim gasket in the first place??


and the standard felpro gasket is .039"x4.166"

 

to get compression up it aint going to be but like like 9.6 to 1

 

you dont want to be upping your compression solely with a head gasket... although if your pistons sit .025 in the hole the .015 is what would be best to get your quench to .040 but i would check if you are using aluminum heads they might not be compatible

 

i think there in the hole .045 they aint in yet but that what the old ones was and im using aluminum heads

 

holly crappa batman thier isnt anything gonna save your quench besides 0 decking the block... are you sure they are .045?

and i ment check with the gasket company to see if you can use the gasket with the AL heads


what pistons and heads are you using?? to get 9.6cr?

 

i have speed pro piston h345np40 with stock deck block what should the piston be in the hole

 

well maybe a little more than .025 like max .035 some will say they have seen more who knows... but with those pistons and 64 CC heads your CR will be around 10:1 with your deck at .045 so it probably wouldnt be a good idea to do that

 

i have 62 cc head i really want around 10 to 1 cr so u think the fel pro gasket .039 well give me around that

 

well the .039 gasket would probably put you in the 9.6 range but your quench will be .084 which sucks BAD it might be very tricky to run any decent cam with that compression and quench so it will be a dog....that is if you have the .045 correct and the speedpros will sit even a little lower than stock it is thier saftey margin they figure a lower CR aint gonna hurt like detonation

 

well i had the same piston before just in 30 over not 40 over but i could of not had it all the way up

 

and ill be runing a zcam .473 .486 and a 150 shot of nos dont want the cr to high

 

that would be my guess hopefully...but if that were so and say you had the pistons at .025 in the hole your CR would be 10.8 with the .015 ... which depending on the cam you run wont ever see pump gas

 

.025 in the hole with the fel pro gasket .039 would make it at around 10.02 to 1 cr which would that be pretty good cr for other cams

 

yes that could be done with the right cam but i dont think the "zcam" is that cam

 

someone said that aluminum heads made ur cr go up by a .5 is that ture

 

Aluminum heads ALLOW for slightly more (.5 +/- cr) higher compression than iron heads will. The material of the head has no effect on the actual compression ratio

 

what is the mini quench u can run? and how much could i deck the block and how much does it cost to do?