I'm looking at possibly buying a trans am. It has a 355 with 9.5:1 compression and a rebuilt stock bottom end. It has AFR 180cc heads, cc306, vortech supercharger, pcm4less tuning, and full bolt-ons. My question is, is this too much power for a stock bottom end? How much power should a setup like this be making through the M6 tranny? Thanks guys

also the supercharger probably needs to be rebuilt. how much does vortech charge for this, or do they sell rebuild kits to do it yourself?

 

the 9.5.1 comp makes a big diff. You should be fine.

As for the power??
How much boost, how much work to the heads, who did the heads, etc, etc. Endless questions. Need more info.

 

I agree with u. There is lots more info needed here. the 9.5:1 is a plus though.

 

this is the info i have.

350 bored to 355
Vortech V-2
Vortech FMU
Vortech T-Rex in line fuel pump
TPIS Airfoil
CC306 cam
Crane 1.6 roller rockers
Crane Hydraulic Lifters
Crane Valve Springs
AFR street 180heads
9.5:1 Compression
Fireball HI-6R ignition
stock coil and optispark
AC Delco R44LTS6 spark plugs
AC Delco plug wires
Hooker Super Comp Long Tubes (1.75" primaries, 3" exhaust)
Flowmaster 3" catback system with a catalytic converter





How much is a supercharger rebuild usually? I assume that the stock pully is on there so probably 6-8lbs of boost. Not sure though

 

if its 6-8psi u should be good. I'll have to research a lil on rebuild kits for the S/C. I know the powerdyne my friend has on his Mustang cost 900 to rebuild.

 

the cam is a bad FI choice but it will do. I dont think your going to pop out a piston. just run 6lbs of boost if your afraid of something unexpected will come up. It will still be fast on 6lbs but wont be at as much of a risk.

 

if i had to guess, with good tuning and decent boost, over 450whp should be possible. It is a full bolt-on car with H/C/I and a supercharger

 

send it to vortech an they will rebuild it for $300 and for another 325 they will upgrade it to an si trim blower