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08-17-2013
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#1 |
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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93 and up IH porting
Ported the top of these, have not touched the lower half yet, as you can see injector boss is much smaller, however as its not o-ringed on the primary cannot eliminate the boss...top portion very restrictive, they left alot of performance on the table in the first inch of the IH
 
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-17-2013
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#2 |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,156
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Re: 93 and up IH porting
Are these for a Customer or one of your own?
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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08-17-2013
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#3 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: 93 and up IH porting
I believe someone is sending me a set to port, if they want their originals I will do those, but these are a set I got with a car I purchased, were sitting on the shelf so I thought I would get a head start.
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-17-2013
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#4 |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,156
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Re: 93 and up IH porting
so then they are sort of both, your own but could be a customers
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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08-17-2013
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#5 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: 93 and up IH porting
Correct, will see what they want to do.....I was curious to start porting them and see the difference vs the 90-92 and the prototypes I siamesed
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-24-2013
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#6 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: 93 and up IH porting
Top Stock
Bottom Fully Ported 
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-24-2013
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#7 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: 93 and up IH porting
Stock
 Ported 
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-24-2013
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#8 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,683
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Re: 93 and up IH porting
Lee,
I'm thinking Jeff may want his 93-95 IHs ported. |
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08-24-2013
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#9 |
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Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,180
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Re: 93 and up IH porting
Everyone says they are too thin in the walls, I am not sure I agree...and the floors appear thicker than the 90-92....these are pretty damn big
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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08-24-2013
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#10 | |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,156
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Re: 93 and up IH porting
Quote:
If I did he would have to not damage my Powder coating on them
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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