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305 to 350 question./supercharger

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Old Apr 18, 2006 | 09:03 PM
  #1  
85xtransxam's Avatar
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From: demarest nj
Car: 1985 trans am
Engine: 305 tpi 5.0L
Transmission: 700r4
305 to 350 question./supercharger

I own an 85 trans am w/ a tpi 305 and 132000mi.. when that motor goes i want to swap it out for a 350. id like to go with a crate engine 4 bolt main 350.

1. which 350 crate should i use?
2. can i swap the original tpi system along with the intake from my old 305 motor onto the new 350?
3. and if the tpi swap is posibble can i supercharge it all with a charger thats made to work with stock 5.7 350 tpi?
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Old Apr 18, 2006 | 10:17 PM
  #2  
84z28350's Avatar
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Joined: Aug 2005
Posts: 3,004
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From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
What sort of boost would you be looking at?

If its anything thats going to be worth the cost of the supercharger you shouldnt be running just any joe blow crate motor.

Your going to need to find a supercharger specific motor with a forged bottom end and dished pistons if you want it to hold up for a long time. Or better yet go through the experience of building an engine from the ground up!
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Old Apr 18, 2006 | 10:24 PM
  #3  
85xtransxam's Avatar
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Joined: Apr 2006
Posts: 14
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From: demarest nj
Car: 1985 trans am
Engine: 305 tpi 5.0L
Transmission: 700r4
id love to build a motor myself but im also looking at cost here as well and its a fact that it would be cheaper to get a new crate motor or new motor period and after all new metal, is new metal..... as far as the charger goes its just an idea for now but its one of the wesite links so check it out thanks.....Fawcett Performance - Camaro/Firebird/Trans Am 1988-1992 5.0/5.7 TPI Supercharger System V-2 SQ
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Last edited by 85xtransxam; Apr 18, 2006 at 10:25 PM. Reason: Automerged Doublepost
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