TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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TPI INTAKE

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Old Aug 7, 2009 | 07:53 PM
  #1  
92WS6 T/A's Avatar
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From: Owensboro, Ky
Car: 1992 WS6 T/A
Engine: Turbo 383 with Holley Sniper
Transmission: factory 5 speed now Powerglide
Axle/Gears: Strange 12 bolt w/373 locker
TPI INTAKE

I've got a 92 trans am with a 305 TPI, has 170000 miles. while driving down the highway, a rod stated knocking. i have a 1969 or 70 350 block, will my my tpi setup bolt right up to my 350?
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Old Aug 8, 2009 | 05:29 AM
  #2  
Viprklr's Avatar
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From: N. Illinois
Car: 92 GTA/ 00 TA
Engine: 383/350
Transmission: 700R4/T-56
Re: TPI INTAKE

Yes.
But you'll have to oval some of the holes in the intake manifold to make it bolt to the heads on your old 350 block.
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Old Aug 10, 2009 | 01:06 AM
  #3  
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From: Mesa AZ
Car: 87 Firebird, 90 bird coming soon
Engine: 355 Chevy Vortec Heads TPI, LT1 inj
Transmission: 700r4
Axle/Gears: 2.77 posi 9-bolt
Re: TPI INTAKE

They will fit fine if you use the heads that are in the car now.
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Old Aug 10, 2009 | 01:58 AM
  #4  
92WS6 T/A's Avatar
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Joined: Jan 2009
Posts: 63
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From: Owensboro, Ky
Car: 1992 WS6 T/A
Engine: Turbo 383 with Holley Sniper
Transmission: factory 5 speed now Powerglide
Axle/Gears: Strange 12 bolt w/373 locker
Re: TPI INTAKE

thanks guys, this will help ALOT!!!! now i've just gotta put it in.
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Old Aug 10, 2009 | 03:34 AM
  #5  
InfernalVortex's Avatar
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From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: TPI INTAKE

Originally Posted by birdtojag
They will fit fine if you use the heads that are in the car now.
Yeah I would definitely switch to a set of 083 heads... But he has the 081s... which may or may not be a good compression range for a 350... but the stock tune isnt gonna work with a 350 anyway.

But yeah, the TPI will bolt up aside from a few intake bolts that are a different angle. I'd consider doing a head swap on that 350 to a set of 083 (TPI Iron L98 heads) heads and trying to find a stock 350 ECM. You'll need a new knock sensor also, and I think there's one other thing you need...

But your TPI system is Speed Density, so you dont have a MAF to help with a tune mismatch. But if you go with stock parts, the tune from a 350 should work.
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