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tbi cam same as tpi cam. 1991 long block

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Old Jul 7, 2011 | 07:32 AM
  #1  
musicfreako's Avatar
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From: Allegan, MI
Car: 89' camaro RS TTOP
Engine: 92 5.0tpi Bosch III, headers, msd
Transmission: 700r4 built. trans go. 2,300 stall
Axle/Gears: 3:73 posi ls disc brake conversion
tbi cam same as tpi cam. 1991 long block

I have a junk long block tpi and a good tbi longblock. will the tpi setup work on top of the tbi longblock? This is a 1991 camaro z-28 305. Thanks guys...
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Old Jul 7, 2011 | 09:46 AM
  #2  
fireburdluvr85's Avatar
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From: wallingford,ct
Car: 91 formula ws6
Engine: 355 tpi OBDII
Transmission: 4l60E
Axle/Gears: 2.73 with 4th gen brakes
Re: tbi cam same as tpi cam. 1991 long block

the tbi cam is smaller then either tpi cam. itll fit but will not impress. torque would be over powering tho.
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Old Jul 7, 2011 | 09:59 AM
  #3  
musicfreako's Avatar
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Joined: Sep 2009
Posts: 199
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From: Allegan, MI
Car: 89' camaro RS TTOP
Engine: 92 5.0tpi Bosch III, headers, msd
Transmission: 700r4 built. trans go. 2,300 stall
Axle/Gears: 3:73 posi ls disc brake conversion
Re: tbi cam same as tpi cam. 1991 long block

I'm building a new 305 for my Camaro using heads, cam, tpi setup from original, but using a 91 305 truck long block originally equip tbi. What I need to know is will my roller cam fit in this block. I know I have to swap over those roller lifter retainers.
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Old Jul 7, 2011 | 10:12 AM
  #4  
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From: Safford, AZ
Car: 1992 RS
Engine: 305 (LO3)
Transmission: 700R4
Axle/Gears: 2.73?
Re: tbi cam same as tpi cam. 1991 long block

Originally Posted by musicfreako
... will my roller cam fit in this block....
Yes. You may need to have the bosses for the roller cam spyder machined IF they aren't machined now.
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