porting exhaust bowls, roof is pitting, pics inside please look
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From: chicago
Car: 87 GTA
Engine: 385 sbc
Transmission: 700r4
Axle/Gears: 2.73 posi
porting exhaust bowls, roof is pitting, pics inside please look
Is this normal or did I take out to much material while shaping the guides? the heads are 601s and Ive read sitting bulls thread and vizards book but I havent seen or heard anything about this. Any input is welcome. thanks guys




Joined: Jan 2005
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Thread Starter
Supreme Member
iTrader: (20)
Joined: Aug 2007
Posts: 1,111
Likes: 1
From: chicago
Car: 87 GTA
Engine: 385 sbc
Transmission: 700r4
Axle/Gears: 2.73 posi
Re: porting exhaust bowls, roof is pitting, pics inside please look
thanks for the quick responses,,, I got a little nervous. this is the first set of heads Ive ever ported so I dont want to make any BIG mistakes. thanks guys
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From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
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Re: porting exhaust bowls, roof is pitting, pics inside please look
get the sandpaper rolls and you will be happy
Thread Starter
Supreme Member
iTrader: (20)
Joined: Aug 2007
Posts: 1,111
Likes: 1
From: chicago
Car: 87 GTA
Engine: 385 sbc
Transmission: 700r4
Axle/Gears: 2.73 posi
Re: porting exhaust bowls, roof is pitting, pics inside please look
Heres the one I did last night... I think Im doing okay for my first time Im just not sure how much ,if any, more material to hog out around the base of the guides and the walls.


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