From the looks of inside pistons ... they appear forged.

Well ... you know it's got a 350 stroke ... so it's a 350 plus overbore ... I think you had said it is zerodeck.

With 64cc chambers & a typical 0.038-0.041" gasket ... it'll make about 10.1 - 10.3:1 scr.

 

According to Mortec there was a 69 "386" 4 bolt block as a 350. Since the engine code is gone it will be hard to prove what it is.
http://www.mortec.com/castnum.htm

3932386....302.....69....4...Z-28 Camaro
3932386....327.....69....2
3932386....350.....69....2 or 4

 

I see that too,and that is where i usually look up my numbers.
I was also,going off the NastyZ boys forum that the 350 4-bolts were later in the year.This is a very late 68 for early run 69.It could be a factory 350.There is also,the builder/owner owned/owns a wrecking yard in Cali,and said that it was a DZ.It has a DZ damper,DZ timing cover,DZ dated starter,DZ dip stick,high nickle block,and the pink rods,and the pink rods.
It really doesn't matter,cause I am going to run this w/the 350 guts,but to the right Camaro guys.....who needs this date code...this engine is worth some coin.If it had the stamp,and the correct guts dor a 302,then I would sale the engine.It was decked when Z28 camaros were on every street corner,and the 302 had no value.
I did read a article about a acid solution that will show numbners on decked blocks,but only last for so long,so you have to have the digital handy!
Ya all should look on ebay.I typed in DZ 302,and there was a listing were a guy from PA had 5 engines for sale;a DZ 302,70 LT1,a 355 race motor,a 68 L88 standard EVERYTHING,and a 68 Camaro/Chevelle/Nova 396/375 CE that had never been fired.WOW!!!!That makes my heart pound.Wish I wasn't a small business owner on the verge of robbing casey stores on my lunch hour!
Sorry.I'm alittle twisted w/my sense of humor.

 

I want to go to the max!!!But I have read your other posts to stay around 10 to 1.W/this combo....I should be alright here?What about thinner head gaskets?I saw a post where a guy was running .21-.26s,and that raised me up to the high 10s when i used the calculator that you suggested in another post.
Would you please share the characteristics of this engine w/the cam combo,and heads that I have?The induction is 6 custom Holley 2110s that flow 250cfm per carb,and the jets are 52s.The car was originally 427/400 car,and running the factory TI.I did get a Eelco progressive linkage setup,so it has alot better drivability now,but my throttle cable doesn't open my 4 corner carbs more than half way w/ the movement I have.I am changing to a street rod linkage,so I can open them up all the way.Even when I was running all 6 straight I have never had them opened more than alittle over half way unless I was under the hood working the linkage.
Thanks guys.
I sincerely appreciate the help.I would like suggestions on the head gaskets,and they are not very much,so should I go ahead,and replace the oil pump while this torn apart?I have to buy a pickup for the Moroso RR pan,so I might as well go ahead,and get it.

 

My 65 has a 69 CE over the counter engine in it. It is a 4 bolt main block with forged pistons, forged crank, high nickel and high tin. It also has 69 186 heads. The guy that owned the car in 69/70 put it in. He said it was a "high output" 350 whatever that means. Sometimes I wonder if it would be worth something to someone else I would put a 383 in.

 

That's kinda where my thoughts are.I was wanting a 377,but this engine runs good,and got the aluminum brodix on a trade parts deal w/a friend.I don't have alot of "free" money to throw at this car,so....no 377 right now.Someday....
Your engine is worth money to the right guys.I see alot of them change hands on ebay.Alot of guys are selling 2/bolt dated engines that the guys are buying up,then restamping them,or whatever.It appears that when it comes to SBCs the real money is w/the date coded stuff for the Camaro guys.
If you want a good starting point on a 383,I have a running 010 70 truck 4-bolt here,and a stock 75 L82 here.Both need gone thru for what you are after,but both are running engines.I will give you a good price,if you need one.I also,have a bare 71 CE 4-bolt over in the dog pen.

 

Would you be willing to part with that '75 L82? If so, I might have to give you a call when I get back in the States tomorrow..

 

You need a minimum .035 head to piston deck clearance, your block at zero you have to run a .039/.041 gasket.

Are you sure those pistons are 6cc ??

bore 4.030
stroke 3.48
head 64cc
piston 6cc
head gasket .041
deck 0

Cubic Inch 355.12
comp. ratio 10.26

bore 4.040
stroke 3.48
head 64cc
piston 6cc
head gasket .041
deck 0

Cubic Inch 356.88
comp. ratio 10.30

 

I might have wrote it wrong,but they are -6.1 ccs.When I did that in the calculator that jackson uses...those little valve reliefs really change the compression.WOW!!!
Okay....so I do need to run the thicker head gaskets.That's fine.Do I need to put the clay on top of the pistons,and pre-assemble the heads,and valve train,and turn it over,then measure the clay?
Thanks for the info.

 

especially since you say you are at zerodeck & especially since you may have a bit of rock in bore ... edge of piston may rock/tilt up toward bottom of head.

Yes you should check w/ clay ... I dunno which cam you have but likely valves will clear pockets enough room to spare. Alot will depend on cam phasing aka how you degree it.

Without spending $ ... Sounds like $ you will have what you have now ... assemble it.

 

Thanks,and will do.I have degreed a cam before,so I planned to that,and will use the clay to just make sure.I am getting ready to put a order here online here in a few.
I called Crane's tech,but used a Erson F-286-3 cam,and PMB sollid lifters w/the oil hole in the bottom for better oiling of the cam.The cam specs are LSA 110+4/Int.286/Exh.294/510 lift,and LCL is 106.Set hot @ .023.
The guy Chris that did the machine work on the Brodix,builds,and runs some pretty serious BBs,.and has like the fastest deisel 70 chevy in the US for the last couple years.He goes w/the PBMs.I am NOT second guessing him,but was wondering ya alls thoughts on them?I had never heard of them.Thoughts please????
Going out of town to get the heads,and the parts was our New Years treat,and part of my wife's early B-day.Here's a couple shots from our room in the Hyatt.Man...that bed was nice,and the pillers kicked azz!!1


Ahhhh(my favorite here....sitting butt hole naked at the window smoking a Don Diego cigar this AM on the 14th floor!!)