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Valve cover orientation....

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Old 01-02-2013, 05:57 PM
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Car: 1986 K5 Blazer
Engine: 1992 5.7L TPI
Transmission: 700R4
Valve cover orientation....

...after looking around at different TPI engine bay pics I noticed different valve cover orientations...

Meaning.... on mine, 92' 350, the DS has the oil fill cap up front and the PCV towards the firewall, on the PS the vent tube is up front.

Ive seen several pics where the PCV and oil fill cap are switched up. Could be different years I guess, and I dont see how it would hurt...

...so is there a right/wrong way?
Old 01-02-2013, 06:04 PM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Valve cover orientation....

Depends on the year of the car as to how they are set up. Early TPIs have the oil fill to the rear and newer ( guessing here,90-92?) cars have it close to the front of the motor.
Old 01-02-2013, 07:26 PM
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Car: 1989 Firebird Formula
Engine: 385
Transmission: Full Manual TH350
Axle/Gears: Moser 9" 3.70
Re: Valve cover orientation....

Originally Posted by TTOP350
Depends on the year of the car as to how they are set up. Early TPIs have the oil fill to the rear and newer ( guessing here,90-92?) cars have it close to the front of the motor.
My 89 has the oil fill to the rear, so I can second this
Old 01-02-2013, 08:14 PM
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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: Valve cover orientation....

My 91 is towards the front for oil fill.
Old 01-02-2013, 08:29 PM
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Car: 1986 K5 Blazer
Engine: 1992 5.7L TPI
Transmission: 700R4
Re: Valve cover orientation....

Sounds good guys, thanks for the info....must be something that changed from 89-90...
Old 01-02-2013, 09:31 PM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Valve cover orientation....

I "think" it changed around the time the cars went to SD.
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