First off I would like to say hello. I am sorry but my posts in here won't be Camaro related. I own a 95 Camaro SS clone and a 94 Chevy Blazer ( full size ) with a TBI.
I have been building a motor for my Blazer and have come to the throttle body. Here are my engine specs:
Block bored .040 over and 0 decked
Pistons are Speed Pro flat tops
Cam is a stock LT1 cam out of a 95 Z28
Heads are 062 Vortecs with 2.02/1.60 valves
Intake is a GMPP TBI/Vortec intake. Holes bored to 2"
Headers, Cat back exhaust.
Full roller ( rockers, lifters, timing chain )

Here is my question. What would be a good throttle body set up for this engine? I plan on towing my Camaro and using it as a daily driver. Any help would be great.

454 TB ?

Turbo City TB?

I have looked for info every where and you guys seemed to have the most knowledge. Thanks

 

most knowledge in camaros

 

Well I have not heard enouhg about the new TBI's that turbo city has out but they are not quite 2" form what I have read. I would look into the 454 unit or a holley 670. I thought the GMPP vortec TBI intake already came with 2" bores?

 

Well thats not fair my intake was only 1 3/4. Oh well the boreing was free. What mods do you have to do to the 454 throttle body to get it to work? I know it doesn't have the 700R4 kick down but I have a 4L60E so I don't need it. Are there any other things that are different? TPS, IAC,. Is there anything I can do to my stock throttle body?

 

Well I think you can do a plug and play. You will have to modify the throttle bracket plate. I don't think you have to do anything to your IAC. If you had an F-body you would need to use the wire harness connection to the IAC off of the 454 truck and splice it in place of your current one because of the different IAC's. I am to lazy to go look at a work truck right now to check the IAC. Let me get back with you.