Well, the 305 is now on its last leg, and its time came a bit faster than what I thought.

I already have a 350 block, its been bored out .040 over already. Of course for the 400 crank ill have to take this motor to the machine shop to get it notched out or w/e.

Im looking at getting this rotating assy: http://www.jegs.com/webapp/wcs/store...10002_77300_-1

I also have a set of 882 heads my friend got from work (somone used em for a core return at advance auto parts!). These heads have had work to them done, they have already been ported out and someone put some bigger valves in them too! They look like they were not shaved (no markings) Just curious but my goal is around 10.5:1 compression with this motor, how far should i have to get these shaved down?

And for the camshaft im going with the Lunati 00016LK and im not shure if im going to use my solid lifters that i already have or if i should just go w/ the hydro ones that come with the cam.

With that cam im pretty sure im going to need a stall and will probably need to have the trans rebuilt (700r4 w/ 411k lol)

Am i missing anything else here? Suggestions? Oh yeah w/ the motor bored out .040 over and the 400 crank what is the exact c.i. of this motor?

 

HI VQMAXFAN LET ME TRY AND HELP YOU TO START WITH YOUR 4.040 BORE WITH THE 400 CRANK WITH GIVE YOU AROUND 385 CI YOU WILL HAVE GET IT CLEARANCE IF YOU HAVE NOT PURCHASED THE KIT YET I KNOW A FELLOW IN INDIANA THAT CAN HELP YOU GOOD PRICES THE 882 HEAD THAT YOU HAVE CARRYS A 76CC CHAMBER YOU ARE GOING TO HAVE TO GETIT DOWN TO 64CCTHIS WILL GET CLOSE 10.5 TO 1 COMPPESSIONWITH A FLAT TOP PISTON NOW THERE ARE A LOT OF FACTORS TO INVOLVED SUCH AS HEAD GASKET
THICKNESS ALL OF THIS MUST BE RIGHT AN EXPEREINCED MACHINE SHOP CAN HELP YOU WITH ALL THOSE NUMBERS AS FOR THE CAM
IF I UNDERSTAND YOUTHIS CAM IS HYDRAULIC AND COMES WITH LIFTERS IF THIS IS THE CASE YOU CAN NOT USE THOSE MECHANICAL
LIFTERS THEY WILL RUIN THE CAM IF YOU DECIDE TO RUN MECHANICAL CAM THEN YOU CAN USE THOSE LIFTERS AS FOR A CONVERTER
YOU MORE THAN LIKELY WILL NEED ONE YOU WILL HAVE TO TAKE IN TO CONCETERATION YOU WILL NEED GOOD IGNITION AND FUEL DELIVERY THERE IS LOTS INVOLVED IN BUILDING A MOTOR TAKE YOUR TIME MAKE SURE ALL YOUR PARTS WILL WORK TOGETHER
DETAILS MEAN MORE THAN LOOKS DO IT RIGHT THE FIRST TIME AND YOU WILL BE HAPPY IN THE END
I HOPE THIS IS SOME HELP THESE ARE NOT ALL YOUR ANSWERS BUT JUST A FEW
HAVE FUN KEEP MOTORING
STICKIT

 

What if i went with dome top pistons with the 882 heads i already have. Versus going with flat top pistons and a set of double hump heads?

 

HI VQMAXFAN OF CORSE THE USE OF DOME PISTONS WILL HELP YOU ACHIVE HIGHER COMPRESSION MUCH EASYER THAN CUTTING
DOWN THE HEADS IF YOU CHOOSE TO USE THE 882 HEAD AND A DOME PISTON WILL GET YOU THERE THERE IS NOTHING WRONG WITH USEING 882 HEADS THAT YOU ALL READY HAVE THE DOME PISTON WILL MAKE UP SOME DIFFERENCE IN THE CHAMBER BETWEEN 76CC AND A 64CC DO REMEMBER TO CHECK PISTON TO VALVE CLEARENCE DEPENDING ON WHAT CAMSHAFT YOU SELECT THE LAST THING YOU NEED TO HAPPEN IS FOR A VALVE KISS TO A PISTON AGAIN PAY ATTENTION TO DETAILS YOU WILL BE JUST FIND
THANKS HAPPY MOTORING
STICKIT

 

The concern I would have with milling the 882 heads is the thickness they are prone to cracking already let alone making them thinner. I know you said they were ported so we dont know the flows unless you had them measured in general the 882 head is notthe bestflowing head and the open combustion chamber is not the best design for performance and detonation resistance. I think at 10.5 to 1 with the cam you picked you are very borderline to needing to run race gas domed pistons will make this worse due to the flame travel being impeded by the dome.... Keep one thing in mind Vortec heads in general will out perform the double hump and any open chamber head in both flow and combustion chamber design........ just food for thought.

 

my buddies 383 is bad a$$

 

Good info guys, now im starting to lean away from the dome tops and lean back towards the flat tops w/ a different head. I know a guy who has a set of double hump heads that have been worked already for the price of a set of vortecs, but right now im more concerned with getting the shortblock together

 

spank dat b-atch!!!

 

On the double humps check to see if has hardened exhaust seats and it has the holes for accessory mounts I think they would be a better choice than the 882s.

 

i'd really watch going over 10:1 compression ratio, you wont get the full potential out of the engine while running pump gas. check out this kit number 13052 from eagle's website. http://www.eaglerod.com/products/Che...ssemblies.html
thats the assembly i went with, and at 64cc head, it gives you 9.8:1 compression and no chance of valve to piston clearance issues with up to .500" of lift on a cam. plus you can run pump gas. average horsepower on this set up is around 425 depending on cam and intake and exhaust and all that.