520-SM454KXL Big Block GM H/P Long Riser Kit
This system was designed for
mildly modified factory engine packages. It shares the same features as the
systems listed above, except its long tailpipe discharges water later in the
exhaust stream. This provides some flexibility for mild cam shaft changes. Please
consult us for cam shaft compatibility. A measurement sheet must be filled out when purchasing.
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676-18-2536 Key Features:
Interchanges/ReplacesGLMJohnson/Evinrude OutboardMallory
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676-18-7146 Key Features:
Additional Details:
- I.D.: 1.12" or 28.4mm
- Width: 0.100" or 2.5mm
Interchanges/ReplacesGLMJohnson/Evinrude OutboardMalloryMercruiser Stern DriveOMC Stern Drive
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676-18-7151 Key Features:
Additional Details:
- I.D.: 3.000" or 76.2mm
- Width: 0.135" or 3.4mm
Interchanges/ReplacesGLMMalloryMercruiser Stern DriveMercury Marine
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676-18-7157 Key Features:
Additional Details:
- I.D.: 3.500" or 88.9mm
- Width: 0.210" or 5.3mm
Interchanges/ReplacesGLMMalloryMercruiser Stern DriveMercury Marine
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676-18-7159 Key Features:
Additional Details:
- I.D.: 3.855" or 98mm
- Width: 0.210" or 5.3mm
Interchanges/ReplacesGLMMalloryMercruiser Stern DriveMercury Marine
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676-18-7160 Key Features:
Additional Details:
- I.D.: 2.635" or 67mm
- Width: 0.210" or 5.3mm
Interchanges/ReplacesGLMMalloryMercruiser Stern DriveMercury Marine
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676-18-7161 Key Features:
Additional Details:
- I.D.: 3.250" or 82.6mm
- Width: 0.070" or 1.8mm
Interchanges/ReplacesGLMMalloryMercruiser Stern DriveMercury Marine
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676-18-7174 Key Features:
Additional Details:
- I.D.: 0.620" or 15.7mm
- Width: 0.100" or 2.5mm
Interchanges/ReplacesChrysler/Force/US MarineGLMJohnson/Evinrude OutboardMalloryMercruiser Stern DriveMercury MarineMercury Sport JetOMC Stern Drive
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676-18-7426 Key Features:
Additional Details:
- I.D.: 0.740" or 18.8mm
- Width: 0.310" or 7.9mm
Interchanges/ReplacesGLMMalloryMercruiser Stern DriveMercury MarineMercury Sport Jet
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676-18-7419 Key Features:
Additional Details:
- I.D.: 2.675" or 67.9mm
- Width: 0.103" or 2.61mm
Interchanges/ReplacesChrysler/Force/US MarineGLMMalloryMercury MarineSears
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676-18-7420 Key Features:
Additional Details:
- I.D.: 0.796" or 20.2mm
- Width: 0.139" or 3.5mm
Interchanges/ReplacesGLMMalloryMercruiser Stern DriveMercury MarineMercury Race OutboardMercury Race SterndriveMercury Sport Jet
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676-18-7961 Additional Details:
- I.D.: 3.650" or 92.7mm
- Width: 0.135" or 3.4mm
Interchanges/ReplacesMalloryMercury Marine
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676-18-7449 Key Features:
Additional Details:
- I.D.: 4.487" or 114mm
- Width: 0.103" or 2.6mm
Interchanges/ReplacesGLMMalloryMercruiser Stern Drive
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676-18-7145 Key Features:
Additional Details:
- I.D.: 0.250" or 6.35mm
- Width: 0.100" or 2.54mm
Interchanges/ReplacesGLMJohnson/Evinrude OutboardMalloryMercruiser Stern DriveMercury MarineOMC Stern Drive
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676-18-7173 Key Features:
Additional Details:
- I.D.: 1.875" or 47.6mm
- Width: 0.135" or 3.4mm
- Fits: MCM/MIE GM V-6 & V-8 engines, for thermostat housing with flat cover plate
Interchanges/ReplacesChrysler/Force/US MarineGLMJohnson/Evinrude OutboardMalloryMercruiser Stern DriveMercury Marine- 25-27018
- 25-30224
- 25-30224Q
OMC Stern Drive
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676-18-7170 Key Features:
Additional Details:
- I.D.: 1.365" or 34.7mm
- Width: 0.135" or 3.4mm
Interchanges/ReplacesChrysler/Force/US MarineGLMJohnson/Evinrude OutboardMalloryMercruiser Stern DriveMercury MarineOMC Stern DriveVolvo Penta
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676-18-0858 Key Features:
Additional Details:
- I.D.: 2.8" or 71.12mm
- Width: 0.103" or 2.6mm
Interchanges/ReplacesGLMMalloryMercruiser Stern DriveMercury MarineMercury Sport Jet
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676-18-2516 Additional Details:
Interchanges/ReplacesGLMMalloryMercruiser Stern Drive
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