I need the specs of the heads of my car . . .
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Joined: May 2005
Posts: 297
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From: Sunrise Fl
Car: 91 Camaro TBI 5.0
Transmission: Auto
I need the specs of the heads of my car . . .
I just got my hands of a 1987 pontiac GTA, it has the TPI 5.7 with the digital dash and rear disc brakes. At high RPM there is serious valve clatter, Maybe due to an overheat? I want to see if the heads are worth rebuilding, does anyone know the intake runner size, valve sizes, and CC size for this year and model heads?
On Probation
Joined: Oct 2008
Posts: 6,319
Likes: 19
From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: I need the specs of the heads of my car . . .
Your heads are iron, 64cc chambers, 155-160cc intake ports, 1.94"/1.50" valves, pressed-in rocker studs. Nothing special, but they aren't bad, either.
Thread Starter
Member
Joined: May 2005
Posts: 297
Likes: 0
From: Sunrise Fl
Car: 91 Camaro TBI 5.0
Transmission: Auto
Re: I need the specs of the heads of my car . . .
Excellent! Thanks, the heads should be good for a budgeted performance build between 325-375 HP.
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