TXsilverado

iTrader: (18)

ok are there any cons to higher compression N/A...like maybe the life expectancy of the motor or anything?

how much power can really be expected going from 10.65:1 with 8.43 dcr to 10.97:1 with 8.68:1 dcr???

the reason im asking is because im debating the worth of going with .o40 gaskets over the factory .052's...my plans are using bone stock 243 heads. if anyone wants to check my math im using a stock bottom end LS1 with a 226/226 .585/.585 112+4 XER cam.

any input? i know i can run on pump gas with .040 without any issues. 93 octane is available. im just curious of the estimated gains vs $$...also stock mls gaskets seem to be more forgiving on install.

Websy21

iTrader: (34)

I am not a math guru when it somes to CR or DCR, but as for gains they will be minimal. I'd guess around 15hp? I think its worth it if you were to do it yourself but I would get the heads ported or get new ones if you are going to really make it worth it. Some people would spend more money than the price of gaskets on mods taht souldn't give as much as this would. to me it breaks down to the job being worth it rather than the price.

I have everything for a cam swap in my car but I am waiting to get heads before I do it. If you are on a tight budget and can only afford to do gaskets and willing to do it yourself, I say go for it. Even though I wouldn't

brad8266

iTrader: (23)

Your hp difference is going to me very minimal Not worth it IMO to just swap gaskets to pick up HP.

DONAIMIAN

iTrader: (18)

I wouldnt waste my time. If you were going to mill also, then it would be different.

TXsilverado

iTrader: (18)

i shoulda left more info. gaskets are definatley in my budget full heads arent. im running 853's now and plan to swap to 243's. ive spent more money on smaller gains(havent we all) so if its worth 10 more torque ill go that route. with trucks its all down low power.

JudgeGuns

iTrader: (1)

compression=torque

TXsilverado

iTrader: (18)

im swapping my 853's to 243's so im trying to decide on which gasket while its open. im not pulling the heads just for a gasket swap haha. im doing the work myself. its 10,0000X easier to do under the hood of a silverado i hate working on F-bodies

TXsilverado

iTrader: (18)

so the general consensus is to go ahead and put in .040 gaskets while i have them off???

and i should be able to run my 7.400 pushrods right? if anyone wants to check my math feel free. this is my first rodeo

radkon

iTrader: (2)

For every 1 point increase in compression, you will pick up 3-4% power. On a 400 rwhp engine, going from 10.0:1 to 11.0:1 will give you (theoretically) 12-16 additional rwhp

TXsilverado

iTrader: (18)

ok im sold. ive spent more money for less gains (asp pulleys, e-fans etc haha)

Louie83

iTrader: (3)

You said you were only going from like 10.65 to 10.97.

That would be a lot of work for a 4 hp increase.

cherryelky305

iTrader: (2)

But he's swapping heads anyway, so why not do it?

TXsilverado

iTrader: (18)

yeah i forgot about that...nice catch. it makes more sense economically to go with stock .052 gaskets...unless anyone can give me a good reason not to.

JScamaro

iTrader: (6)

If you already will have the heads off I would go ahead and use the thinner head gasket.

bryced1

i put .040 gaskets on mine. dont know of the gains, but it works fine with my cam. (228/232 .588/.575 113)

every little bit helps. i say do it.