You're going to need a forged crank. Have you thought about heads/cam/displacement yet?

 

+1 if your runnin that boost you need a forged crank. and like he said wat r the heads/cam displacement plans?

 

i dont rember the specs but when i ordered the heads and cam i told what i was going to do with the engine. pariot heads and comp cam.

 

8-9:1 comp. is usual. First of all, just because the rotating assemblies that are out there say that they are 9:1 or 11.5:1 etc doesnt mean that your car will have that kind of compression. Lots of things must be taken into consideration. You will need to measure your headgasket thickness i recommend itc(for forced air induction) then use a plexicap and dropper to measure the volume of the head chambers. If you deck the block or head this will be imperative. The pistons that you select wll need to be also taken into consideration... valve reliefs etc. Need to measure volume of those....then plug that into a formula etc. etc,.you ave a lot of research to do...and nobody is gonna give it to you. THe cam selection is important....the overlap in a forced induction engine is important for volumetric eficiency. That has been my experience. The cast crank will not handle the vibration and knocking will ensue :-D take that from me..get a steel crank (750 but underrated). H beam rods. total seal gapless rings...and an adjustable timing kit (will simplify the degreeing in that you will do). THe lt1 edit is the schniznit!!!!!!!!!!!!! Nothing else is even close...thank gm for the prom chip....drawback 5-15 minute reprogram. Lt1 edit will allow you to pull out timing throughout the spectrum. underload vs temp vs rpm the whole enchilada. this is a very complicated task....not just throwing the engine together...bt getting the setup right. Support mods that are required will be huge dont hesitate to send me a message,,,,,there is much more. What size turbo will you select? You need to plot out your setup on compressor maps to ensure that you select one that will spool up early and stay in the longest. Aeromotive makes the best fuel pumps.

 

trust me i am doing all of my home work. that is why i wanted to know what comp to run. i thought 8 to 8.5 was good i just wanted to make sure. are the eagle rotating assemblies good or should i just buy all the parts seperate and make a better one. i have 5000 left in budget. all i need is the bottom end i have all of the other parts for the top end. i also bought the msd ignition system complete the automatic timing adjuster opti spark coil plug wires. the only thing my heads are 58cc chambers what is the best way to get the comp down. i know i could do it with the right piston but should i also get thicker head gaskets.

 

This assembly is the one we used in a 355 we used je pitons and broke a wrist pin on #1 esp-b12129030. I would look for a comparable kit. The SCE ICS titan head gaskets are the best for holding up to the pressure. What rear end are you planning to use?

 

have not figured out what rear end or gear ratio to go with yet. will the stock 6 speed handle what i am going to throw at it or do i need to get that build up, if so what are the recomendations for that. thanks for every ones help.

 

your trans should be ok but you'll need a good clutch. people hav ran a stock 6 speed deep into the 9s with close to 600hp

 

The ten bolt will bite the dam dust! Ive broken those things with only 371hp and a good solid launch. The t56 is another story its pretty hardy borg warner underrated the thing. They say they are good for 450 ft lbs of torque but they are good for more.

 

yeah the ten bolts out you need a 9" you have many options there but a standard moser 9" will probably be the best price. you probably goin to need a bit more $$ in your budget. you cant try and keep the 10 bolt for now but with a turbo built motor and a 6 speed good luck