Perforated Steel
Composite
Multi-Layered Steel
Rectangular Ports with 1-9/16in x 2-1/8in End Ports
Port Size: 1.463 x 1.471 Port Shape: D-Shape Compressed Thickness: .064 Material: Armor
Port Size: 1.379 x 1.208 Port Shape: D-Shape Compressed Thickness: .064 Material: Armor
Material: AM Compressed Thickness: .064 Port Shape: D Port Size: 1.700 x 1.700
None: 2 Port Size: 1.852x1.589 Port Shape: D-Shape Compressed Thickness: .064 Material: ArmorCore
Port Size: 1.650x1.600 Port Shape: D Compressed Thickness: .060 Material: HTS
Material: HTS Compressed Thickness: .060 Port Shape: Round Port Size: 1.500
Material: Armor Compressed Thickness: .064 Port Shape: Square Port Size: 1.500 None: 2
Material: Armor Compressed Thickness: .064 Port Shape: Round Port Size: 1.5
Material: Armor Compressed Thickness: .064 Port Shape: OvalRectangular Port Size: 1.562x2.0312.031x2.704
Composite
Material: HTS Compressed Thickness: .060 Port Shape: Square Port Size: 1.480x1.450
1.5 in. x 1.5 in. Port
Composite
Composite
Composite Except Gaskets with 1.76in x 1.83in End Ports
Material: HTS Compressed Thickness: .060 Port Shape: D Port Size: 1.710x1.550
Material: HTS Compressed Thickness: .060 Port Shape: Round Port Size: 2.00
Material: ArmorCore Compressed Thickness: .064 Port Shape: Square Port Size: 1.550 None: 2
Material: HTS Compressed Thickness: .060 Port Shape: Square Port Size: 1.550
Material: HTS Compressed Thickness: .060 Port Shape: Rectangle Port Size: 1.450 x 1.480
Material: HTS Compressed Thickness: .060 Port Shape: Square Port Size: 1.550x1.450
Material: HTS Compressed Thickness: .060 Port Shape: Round Port Size: 1.625
Material: HTG Compressed Thickness: .094 Port Shape: DOval Port Size: 1.940x1.500
0.064 in. Armor Core; Stage 2 Heads
Material: HT Compressed Thickness: .060 Port Shape: Oval Port Size: 1.565x1.746
Material: HTS Compressed Thickness: .060 Port Shape: Round Port Size: 1.82
None: 2 Port Size: 2.025x1.600 Port Shape: Rectangular Compressed Thickness: .064 Material: Armor
Multi-Layered Steel
Material: HTS Compressed Thickness: .060 Port Shape: Round Port Size: 1.820 None: 2
1.880 in. Port
Material: AM Compressed Thickness: .064 Port Shape: DShape Port Size: 1.78x1.70
Material: HTG Compressed Thickness: .094 Port Shape: Square Port Size: 1.480x1.450
with Square Ports
Material: Armor Ply Compressed Thickness: .094 Port Shape: Round Port Size: 1.625
Beaded Steel
Material: AM Compressed Thickness: .064 Port Shape: D Port Size: 1.615x1.500
Material: Armor Compressed Thickness: .064 Port Shape: Round Port Size: 1.81
Material: Armor Compressed Thickness: .064 Port Shape: DShape Port Size: 1.5x1.47
Material: Armor Compressed Thickness: .064 Port Shape: Round Port Size: 1.625
Material: AM Compressed Thickness: .064 Port Shape: Square Port Size: 1.480x1.450
Material: MLS Compressed Thickness: .030 Port Shape: Oval Port Size: 1.859x1.688
Material: UncoatedMLS Compressed Thickness: .030 Port Shape: Oval Port Size: 1.6x1.85
Composite Transverse Engine
Material: Uncoated MLS Compressed Thickness: .030 Port Shape: Round Port Size: 1.820 None: 2
Material: HTG Compressed Thickness: .094 Port Shape: Rectangular Port Size: 1.920x1.550
Material: Uncoated MLS Compressed Thickness: .030 Port Shape: Round Port Size: 1.500
Material: Uncoated MLS Compressed Thickness: .030 Port Shape: Rectangle Port Size: 1.450 x 1.480
Material: MLS Compressed Thickness: .060 Port Shape: Round Port Size: 1.500
Material: MLS Compressed Thickness: .030
Material: MLS Compressed Thickness: .030 Port Shape: Rectangle Port Size: 1.450 x 1.600 None: 2
Material: MLS Compressed Thickness: .030 Port Shape: Round Port Size: 1.625
Material: MLS Compressed Thickness: .030 Port Shape: D-Shape Port Size: 1.780 x 1.700
Material: Copper Compressed Thickness: .043 Port Shape: D Port Size: 1.600x1.500
Material: Copper Compressed Thickness: .043 Port Shape: Square Port Size: 1.550x1.450
Material: Copper Compressed Thickness: .043 Port Shape: Round Port Size: 1.625
Material: Uncoated MLS Compressed Thickness: .030 Port Shape: D-Shape Port Size: 1.520 x 1.510
Material: Copper Compressed Thickness: .043 Port Shape: D Port Size: 2.000x1.550
Material: Uncoated MLS Compressed Thickness: .030 Port Shape: D-Shape Port Size: 1.619 x 1.625
Material: Copper Compressed Thickness: .043 Port Shape: Square Port Size: 1.480x1.450
Material: Copper Compressed Thickness: .043 Port Shape: Round Port Size: 1.500
Material: MLS Compressed Thickness: .030 Port Shape: Rectangle Port Size: 1.456 x 1.913, 1.448 x 1.913 None: 2
Material: MLS Compressed Thickness: .030 Port Shape: Split Center Port Size: 1.500 x 1.930, 1.150 x 1.930 None: 2
All 6 Bolt Port Flange
GM SMALL BLOCK Up To 1-3/4" Port
GM 305/350 1-5/8
Square Port Shape; Port Dimensions W-1.45 in. x H-1.55 in.; Medium Square Race Port
Material: MLS Compressed Thickness: .040 Port Shape: Round Port Size: 1.875
Round Port Shape; Port Diameter 1.50 in.
Round Port Shape; Port Diameter 1.63 in.
Graphite 1.37in x 1.40in Rectangular Ports
Round Port Shape; Port Diameter 1.63 in.
Square Port Shape; Port Dimensions W-1.45 in. x H-1.55 in.; Medium Square Race Port
Material: AR Compressed Thickness: .19
Square Port Shape; Port Dimensions W-1.45 in. x H-1.48 in.; Small Square Race Port
Round Port Shape; Port Diameter 1.50 in.
Material: Copper Compressed Thickness: .043 Port Shape: D Port Size: 1.520x1.510
Material: Copper Compressed Thickness: .043 Port Shape: Rectangular Port Size: 1.913x1.456
Material: Copper Compressed Thickness: .043 Port Shape: Round Port Size: 1.625
Material: Copper Compressed Thickness: .043 Port Shape: OvalDPort Port Size: 1.930x1.5001.930x1.150
Material: MLS Compressed Thickness: .030 Port Shape: Oval Port Size: 1.927x1.752
Graphite 1.50in x 1.50in Square Ports
Oval/D Port Shape; Port Dimensions W-1.55 in. x H-1.94 in.
Round Port Shape; Port Diameter 1.93 in.; Hooker/Stahl Combination Adapter Plate
Oval Port Shape; Port Dimensions W-1.46 in. x H-1.93 in.
Square Port Shape; Port Dimensions W-1.45 in. x H-1.48 in.
Square Port Shape; Port Dimensions W-1.45 in. x H-1.48 in.; Small Square Race Port
Round Port Shape; Port Diameter 1.75 in.
Round Port Shape; Port Diameter 1.63 in.
Oval Port Shape; Port Dimensions W-1.50 in. x H-1.82 in.; Thickness .062 in.
Oval Port Shape; Port Dimensions W-1.61 in. x H-1.85 in.; Hooker Combination
D Port Shape; Port Dimensions W-1.55 in. x H-1.71 in.
D Port Shape; Port Dimensions W-1.40 in. x H-1.40 in.
D Port Shape; Port Dimensions W-1.65 in. x H-1.60 in.; Brodix Spread Port Aluminum Heads
D Port Shape; Port Dimensions W-1.50 in. x H-1.94 in.
Material: MLS Compressed Thickness: .030 Port Shape: Oval Port Size: 1.800 x 1.550
Graphite 1.63in Round Ports High Performance Gasket with Cast Iron Cylinder Head
Square Port Shape; Port Dimensions W-1.45 in. x H-1.55 in.; Medium Square Race Port
D Port Shape; Port Dimensions W-1.40 in. x H-1.40 in.; Thickness .094 in.
Round Port Shape; Port Diameter 1.63 in.
Round Port Shape; Port Diameter 1.50 in.
Square Port Shape; Port Dimensions W-1.45 in. x H-1.48 in.; Small Square Race Port
Browse our selection of quality exhaust manifold gasket set parts designed specifically for your Pontiac Firebird. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.
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Automatic · Manual · U/K