I have finished getting my parts to together and started to assemble
to mike and set all tolerances . a little stumped on what to set the
compression to . i have got a lot of comments here is a brief run down
on parts and some specks.

le2.2 cam .
afr 190 heads, 55 cc .
svo 30 balanced injectors .
52 tb.
headers ,3 in to rear.
cola crank.
carrillo h beem rods.
wisco pistons with 5.4 valve relefs
30 over
decked to .010 .
all clevide coted bearings.
double roller cloise chain .
10% higher oil pump.
1.6 croler stainless rockers .
gm caddy race lifters.
valve tran components to mach le2.2 cam.pack 1518 behive springs
6 sped ,with 3.73 gears obern pose and rear gertal .probably wont last
.went with a .029 hed gasket to finish of
wich put me at around 11.56
160 therm stat. havent put in yet but will 1/1/08
lt4 nock mogel
ported intake
pcv system and vent deleted and re vented into ap
braking it in hard. then having jeremy dino tune her in fl

i think i am right on the compreshin .above is wat it was set up to . please re check diferent calicaters wer diferent and cam bleds of som


thanks pat

 

With what you have I think it will be fine as long as the cooling system is working well.

 

I'm at about 11.5-11.6 static, my temp needle hardly ever climbs above 180 here in S. Florida even on a smoldering day.

 

Back when I had my "20 mile spun bearings on the new motor experience", I was running the .029" Impala head gaskets making my CR ~11.6. When I drove it down the road on the mail order tune I had audible pinging. Not good although if the motor had lived I would have gotten a dyno tune.

When the motor was rebuilt again I used Fel-pro .039 head gsakets and now the CR is ~11.2 on the same tune and after a thousand miles and I have never heard a ping. I am still chasing a minor knock issue which I beleive is noisy rockers and not real detonation.

Lower CR is safer especially if you get bad gas. You need to decide what your priorities are.

 

Obviously some of the knock-or-not thing is related to cam timing (valve events). I suspect the LE2.2 cam may tolerate more SCR than the LE1.5, but the correct thing to do is contact Bret (SStrokerAce). That's going to the horse's mouth, so to speak, rather than asking all of us (including me) which is more like dealing with the other end of the horse.

Even if I knew the LE cam specifics I'd still ask Bret. I wouldn't want to leave torque and power on the table with lower than necessary SCR.

Oh, yeah, higher compression gives better fuel economy at part-throttle cruising also. That's about $75-$125 per 10000 miles for 1 MPG improvement, depending on your average MPG.

 

Did Bret say anything about the compression being "iffy"? I know you won't have to worry about pinging on hills because there aren't any hills there, haha...anyone else running that high on a DD?

 

he sed .029 and wen i sed that woud put me at like 11.56 he sed its ok . i just thot that was to high .asking to see wat you gys thot and i see ther is a bunch with the .029 with like .030 in the hol not .o10

 

your quench is at 0.036", which is good, and 11.8 SCR is not a big deal either. If your DCR is near 8.56:1, I think you'll be fine too.

 

no bret sed .029 i thit .036 woud be beter sare with the .029 it was like 11.66 with .039 it is 11.26 but i have to see my notes wen i get home and ill post wat i got i thot they dident make a .036 gasket inless it was custom ill post nombers later

 

Run the .026s.

Which aren't Impala gaskets BTW. Those are .029".

 

pat, r u going to run any nitrous on this setup at all?

 

not shor in fucher mabe 100 shot but its going to be a street car so no ned for it now and it will onley be a wet shot. i for got i have those man studs for the winteg tray for you. the arp ons wont work

 

i red other pepel saying the impla is .029 not .026 is this right and its not made for aluminum heds .or is ther a gasket near .030 bing the .010 in holl and .030 woud be .040 the speck is no mor then .038 for these afrs and i had them shaved to 55 cc so i cant go lower then .028 so impala is out ane one know of one ner the .028

 

when you put the rod lenth in the calicater. i have 6 inch rods with pistons for 6 in rods stock strock. so i guess you woud put 5.7 in the calcalater then

 

if I'm not mistaken the impala is .029....