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Small Block - 262, 265, 267, 283, 302, 305, 307, 327, 350, 400
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PN 2001 -- Chevrolet Exhaust Manifold/Header Gasket, 379/6.2L Diesel Square Port ('82-'93), 2/Set
MSRP $41.99

1-1/8"w x 1-3/4"h Square Port
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PN 2002 -- Chevrolet, V8, Big Block Round Port for Header Applications, 396, 402, 427, 454, 2/Set
MSRP $42.99

1-7/8" Dia. Round Port
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PN 2003 -- Chevrolet, Big Block, 396/6.5L, 402/6.6L, 427/7.0L, 454/7.4L, Match to Stock Port, Manifold or Header Applications, 2/Set
MSRP $42.99

Year Range: 1965 - 1990 (After 1990 See PN 2030)
1-13/16"w x 1-7/8"h Square Port
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PN 2004 -- Chevrolet, Small Block, 262, 265, 267, 283, 302, 305, 307, 327, 350, 400, Round Port, for Header Applications, 2/Set
MSRP $34.99

1-9/16" Dia. Round Port
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PN 2005 -- Chevrolet, Small Block, 262, 265, 267, 283, 302, 305, 307, 327, 350, 400, Square Port for Header Applications, 2/set
MSRP $34.99

1-17/32"w x 1-19/32"h Square Port
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PN 2006 -- Chevrolet Small Block, 262, 265, 267, 283, 302, 305, 307, 327, 350, 400, Stock Head Port Match, for Maniifold or Header Applications, 2/Set
MSRP $34.99

1-3/8"w x 1-1/2"h Square Port - Matches Stock Head Port
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PN 2007 -- Chevrolet, Small Block, 262 - 400, Large D-Port, "Brodix Track 1", LT-1 Corvette, 2/Set
MSRP $34.99

1-1/2"w x 1-5/8"h Large D-Shaped Port, "Brodix Track 1" Cylinder Heads, LT-1 Corvette
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PN 2008 -- Chevrolet, 5.3L - 6.2L LS1, LS2, LS3, LS6, L99 Car (including Corvette), 4.8L - 6.0L (GM Truck Vortec), 2/Set
MSRP $34.99

1-7/8" Dia. Round Port
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PN 2011 -- Chevrolet, Small Block, Square Port, "L31" Vortec Head, 2/Set
MSRP $34.99

1-3/8"w x 1-1/2"h Raised Square Port
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PN 2013 -- Chevrolet, Big Block, 396, 402, 427, 454 ('65 - '90), Large Round Race Port, 2/Set
MSRP $42.99

2-5/32" Dia. Large Round Race Port
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