Reproduction Of Original Replaces GM # 3720616 Cup Shaped 1/4 Deep 3.5 OD X 5/8 ID 4 - 11/32 Holes Don't forget to add this important item to your water pump install or engine rebuild. Without this spacer you might have belt misalignment…
Replacement Upgrade For 1955-64 Factory Replacement For 1965-72 Short Water Pump Applications 2-7/8 Depth 5-13/16 Diameter Correct GM Part Number Correct GM Logo
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Short Water Pump Applications Use With CCI Big Block Kits P/N 18-200, 18-209, 18-230 & 18-231 2-7/8 Depth 5-13/16 Diameter Replacement Upgrade For 1955-64 Factory Replacement For 1965-72 Correct GM Part Number Correct GM Logo
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