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01-08-2003, 05:09 PM
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#1 |
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Registered User
Join Date: May 2002
Location: Woodstock, GA USA
Posts: 300
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ZZ502 and Headers
Has anyone had any luck finding headers that will fit a new ZZ502 by cleasing the head bolts. I called Hooker and they said that you have to grind the flange off of the header to get it to clear.
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Bill Durham http://home.attbi.com/~bulldurham 72 Cheyenne Restoration in progress Currently: frame sand blasted and powdercoated, Inline Tube brake and fuel lines, Blazer tank in rear, Holley Red electronic fuel pump, Eaton posi with 3.42 gears, 2 1/2" drop front spindles, 4" drop rear springs with adjustable panhard bar, KYB shocks, ZZ 502/502 GM Performance crate engine, Zoops brackets and pulleys, Vintage Air, dual electric fans, Ram Air II hood and late model sport side bed. |
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01-08-2003, 10:55 PM
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#2 |
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So Many Ideas, So Little Money
Join Date: Sep 2001
Location: Marshalltown, IA
Posts: 1,610
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I didn't know they were differnt from other big blocks
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72 Blazer 3/4 ton running gear 4.10s NP205/TH350 350 4in lift half doors 71 C10 with 454 99 S-10 5.1L SBC 700R4 09 Malibu  Marshalltown, Iowa |
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01-08-2003, 11:01 PM
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#3 |
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Registered User
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,928
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what is different from the "standard" 502 my boss has one in a GTO with hooker ceramic headers .
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Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!" |
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01-08-2003, 11:37 PM
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#4 |
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Registered User
Join Date: May 2002
Location: Woodstock, GA USA
Posts: 300
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The ZZ502 has oval port aluminum heads. The angle of the head bolts don't allow enough room for the flange to sit behind them.
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Bill Durham http://home.attbi.com/~bulldurham 72 Cheyenne Restoration in progress Currently: frame sand blasted and powdercoated, Inline Tube brake and fuel lines, Blazer tank in rear, Holley Red electronic fuel pump, Eaton posi with 3.42 gears, 2 1/2" drop front spindles, 4" drop rear springs with adjustable panhard bar, KYB shocks, ZZ 502/502 GM Performance crate engine, Zoops brackets and pulleys, Vintage Air, dual electric fans, Ram Air II hood and late model sport side bed. |
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