TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Upgrades

Old May 28, 2004 | 12:56 AM
  #1  
ThraxXx's Avatar
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From: Ontario, Canada
Car: 1988 Pontiac Trans Am
Engine: 5.0L Fuel Injection
Transmission: Automatic 4speed /w OVerdrive
Upgrades

Hey All,

I have a 305 TBI and I was told that the heads that came with this specific engine are lacking in the flow departement and I should probably consider getting better flowing heads. I was scrounging on ebay and I came across these

http://cgi.ebay.com/ebaymotors/ws/eB...category=33617

Will they fit on a 305? If not...what kind of heads should I be looking for.
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Old May 28, 2004 | 01:20 AM
  #2  
Akshay's Avatar
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From: California
Don't think so. LT1's are reverse flow. And the ports won't match.

There have been previous posts about them.

The heads from TPI car (LB9) will fit.
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Old May 28, 2004 | 06:57 AM
  #3  
ThraxXx's Avatar
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Joined: Dec 2003
Posts: 758
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From: Ontario, Canada
Car: 1988 Pontiac Trans Am
Engine: 5.0L Fuel Injection
Transmission: Automatic 4speed /w OVerdrive
Thanks I will look for those heads then.
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Old May 28, 2004 | 08:24 AM
  #4  
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Check out the sticky for what heads and cam combos are good for these cars. Tuning and fuel supply will ultimately be your limits. There are a lot of areas of your car that need to be addressed before you dive into the motor. Take a look and report back if you have further questions.
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