I'm sure by now you guys are tired of seeing my posts. I do appreciate the help and info though. I plan on going a new direction with my motor. Tell me what you think. Are these parts compatible with each other? Is there something I should substitute something for something else? Give me feedback.

Block: 355 forged pistons/rods, splayed mains
Heads: LT1 p&p 2.02"I and 1.60"E,1.6rr's
Intake: LT1 p&p
Cam: cc306
Injectors: 32 lb/hr
Fuel pump: 255lph Walbro
Exhaust: Jet Hot 1 3/4 LT's, e. cutouts, Borla catback
52mm TB
K&N CAI

anything i'm missing? HP?

 

What kind of power do you want to make? Who are you having the heads ported by, and what other valvetrain components? If you are plannign on making a ot of power you may want larger injectors and throttle body.

 

Well, I'm about to do something like this. Just from searching on this site, I would go with bigger injectors and a bigger cam that the cc306 if you plan on getting the most out of the heads with 2.02 and 1.6 valves. You could go with the GM 847 and 37lb injectors or go with the 2.0 and 1.56 valves. I'm not an expert but I have done some research on this.

 

should i go with the 58mm TB? I have 1.6 rr's and was thinking about solid roller lifters. I got to do some more research on the lifters. I need a pretty good estimate of power to determine which injectors to go with.

 

so the heads will support the gm847? if so i will go for that. What should I be looking at for power?

 

i'm having the head work done locally by a performance engine build and machine shop for around $800

 

Build a 6 inch rod 355 , the extra dwell of the piston with these rods will fill the cylinders slightly better. The GM 847 will be nice in a 355, it also seems to have a better torque curve that I have seen than the CC306.

 

so i go ahead and bore it .030 and put 6" rods in there? will this add any displacement?

 

.030 over 350 = 355 ci. The rod length will have no effect on ci, only on dwell side loading etc.

 

i understand how it wouldn't add displacement but what is dwell side loading and what effect does it have?

 

With a longer rod the piston is pushed in a starighter fashion thus reliving some of the side load on the cylender. The longer rod will also make the piston stay at the top and bottom of each stroke for a little longer assisting cylender fill and evacuation.

 

ohhhh......makes sense. Now, are there any side effects of this like valve clearance problems? How about compression?

 

The wear instead of being at the center of the bore will now be at the top and bottom.
The cam will seem larger. But it's all gooood!!

 

i'm thinking of going with the le3 package. Any problems with the 6" rods?

 

Let me ask you this...what do you want the car to do?