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Velocity Stacks

Part Number              Description

Thumbnail

634-275           VELOCITY STACK, AMAL 275/276
                  Width: 2" Height: 1-3/8"
                  Convex Screen
634_275_op.jpg (42879 bytes)
634-375           VELOCITY STACK, AMAL 375
                  Width: 2" Height: 2-1/2"
                  No Screen
634_375_op.jpg (28657 bytes)
634-389           VELOCITY STACK, AMAL 389&689, MED
                  Width: 3" Height: 2"
                  Concave Screen
634_389_op.jpg (35550 bytes)
634-389/A
VELOCITY STACK, 389 & 689, SHORT, SCREENED
Width: 2-1/2” Height: 1-3/4"
Convex Screen
634-389/B         VELOCITY STACK, AMAL 389&689, LONG
                  Width: 2-1/2" Height: 3"
                  Convex Screen
634_389b_op.jpg (41094 bytes)
634-600           VELOCITY STACK, AMAL 376&600, MED
                  Width: 3" Height: 2-1/4"
                  Concave Screen
634_600_op.jpg (35683 bytes)
634-600/A         VELOCITY STACK, AMAL 376&600, SHORT
                  Width: 2-1/4" Height: 1-3/8"
                  Convex Screen
634_600a_op.jpg (35942 bytes)
634-600/B         VELOCITY STACK, AMAL 376&600, LONG
                  Width: 2-1/2" Height: 3"
                  Convex Screen
634_600b_op.jpg (36732 bytes)
634-900           VELOCITY STACK, AMAL 900&1900, MED
                  Width: 3" Height: 2-1/4"
                  Concave Screen
634_900_op.jpg (39277 bytes)
634-900/A         VELOCITY STACK, AMAL 900&1900, SHORT
                  Width: 2-1/2" Height: 1-1/2"
                  Convex Screen
634_900a_op.jpg (33673 bytes)
634-900/B         VELOCITY STACK, AMAL 900&1900, LONG
                  Width: 3" Height: 3"
                  Convex Screen
634_900b_op.jpg (40212 bytes)
691-2928126       VELOCITY STACK, MK2, 28-34MM
                  Width: 2-1/4" Height: 3"
                  No Screen; uses 691-2036073 screws
691_2928126_op.jpg (31480 bytes)
691-928069 - VELOCITY STACK, AMAL 900, OPEN
691-920786        VELOCITY STACK, 900 SERIES, TUNED
                  Width: 2" Height: 3-1/4"
                  No Screen
691_928076_op.jpg (31677 bytes)
634-PWK/01 - Clamp On Velocity Stack For PWK Carbs