Great now just a set of rods and mains and a set of rings and your ready to go. The factory roller cam makes around 330HP and a lot of TQ. You can always use a set of 1.6 rockers with the stock cam and help it with some lift. Or upgrade to a after market roller. If you do the work your self you should get by with a stock rebuild for under $100. What heads did you get on the motor. One hump or the three point saw tooth?

 

i honestly dont know which heads i got. when i was there i was looking at them and didnt really understand what you guys were saying ...when i get back home ill look. its currently in the back of my k5. i dont have access to a lift until one of my friends gets back home from school so it may sit in there a while unless i get a couple friends to help lift it out. can i get more lift though since it is a stock roller or were all the heads the same?

 

Look on the front of the head for the marking. or pull a valve cover and the number will be their also. You can just add a set of 1.6 self alining rockers to the factory cam to make it have more lift. You must use SELF ALINING ROCKERS with any of the later heads, you can tell by the raised humps on the rocker over the valve stem.

 

what would be the biggest cam i could safely put in without machining the heads? i think theyre the single hump heads. all the rockers are on the same hump.

 

The casting you have is a 906. The biggest cam you can use is some thing with no more then .480 lift. I have had very good performance with the Comp. Cams EX-268. I have done 20+ motors with this cam and every one is very inpressed with it. Years ago Car Craft did a motor they called the Junk Yard Jewl. They took a used 350 from a junked vehical which was in good shape for the bottom end and used the EX-268 cam and a set of vortec heads and made very close to 400HP.

 

Alright so xe 268 and matching lifters/ the roller equivilent of a xe268... I would like to keep it as a roller so there is less cam wear ... it will be daily driven. I want to run an airgap, and am going to run my carb on top. Sound good or is there a better intake?

 

IF YOUR DOING A ROLLER you will need to have the better springs machined for the heads. The best cam for you application is the EX-270HR the air gap is a good intake for you application. You will need springs that can go to .525 lift for your heads.

 

i just need springs or i would need the heads machined

 

You will need the heads machined for the springs and the guides cut down for the added clearance of the valve seals.

 

Cheapest bang for buck. $1500. AFR195's.
Note: If pistons are level or protruding block- quench height and proper gasket must be selected and just use cam and slap on AFR195 heads and go.
NOW...
If you have 1500 get AFR195 heads and 270H magnum cam. If stock 9.025" block get 6" I beams and proper height pistons to match. With the correct piston height it will set you @ zero deck. So use .040" compressed thickness head gaskets this would also be your quench height. Use the dished or 4valve relief flat top. With the comp 270H cam 6cc valve reliefs and aluminum 65cc AFR's you should have 8.339 actual dynamic compression ratio good for aluminum head street motor. No decking of block!
Now for the cheapest bang UN-recomended temporary build up:
You come across a 350 or 400 or 355, 406 sbc. with 76cc 882's make sure pistons are only down .025" in the hole (1.561" piston height in stock 350 un-decked) add felpro 1094 (.015" compressed coated shim gasket) this gives quench height of: .040". With 6cc valve releif flattop or dish pistons.
After smoothing deck to 60 RMS,use the shim .015" gasket & slap on the smaller chamber 65cc AFR195's ($1500) & Dynamic NOT static, Dynamic compression ratio should be 8.339 with this 270H cam witch should work well with aluminum heads and pump fuel. HP should be in the 400+ range with 270H wow!. Use melling oil pump windage tray etc.
This build is not recomended due to heat propagation to the top piston ring by the block retaining heat. This is the cheapest yet somewhat reckless build of a 400hp400TQ+ street 355. But it could work...but, for how long? A few minutes, a day...3 years?
Its NOT better to deck the block- but is BETTER to use 6" rod piston combo above instead if not decking. IMHO. NOTE: All builds shown above but with the 75cc AFR put dynamic compression with the 270H magnum cam @ 7.519 DCR (dynamic compression ratio) 87 octane with iron heads. 7.5 to 8.5 DCR's good for pump gas GENERALY speaking of course. Race motors (or better quench motors such as these) can get away with 9.5:1 DCR on high end with race gas.