Hamburger's Performance Products Spreader bars redistribute the torque load of the pan bolts to improve the sealing capabilities of the pan rails. Because of the notched rails on Hamburger's ECONO-SERIES Pans, spreader bars must be used to ensure a tight seal. THe replacement dipsticks and drainplugs are for use with Hamburger's pans only.
 
Part # ProductFinish Media
3020 Replacement Dipstick; for Hamburger's Oil Pan #s 3037, 3047, 3057, 3080 and 3090 Only; 1/2"-20
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$7.63
1180 Replacement Magnetic Drainplug and Seal; 1/2"-20
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$5.34
1188 Hamburger's Oil Pan Spreader Bar Kit; 1955-78 SB Chevy- Chrome Chrome
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$9.44
1178 Hamburger's Oil Pan Spreader Bar Kit; 1979-99 SB Chevy- Chrome Chrome
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$7.39
1588 Hamburger's Oil Pan Spreader Bar Kit; BB Chevy- Chrome Chrome
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$12.73
 
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http://hedman.com/images/ePIM/original/1180.jpg
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http://hedman.com/images/ePIM/original/1588.jpg