Page 12 of Intake Manifolds by Holley Performance Products, Inc.

manifolds chevrolet small block v8 chevrolet small block v8 1957-86 262 283 305 327 350 400v8 1987-later w/aluminum heads holley carburetor recommendations 0-80570 570 cfm 0-80670 670 cfm 20-124 universal carb installation kit installation notes part 8120c satin 8120pc polished features · low rise/dual plane design · idle-5500 rpm power band · no egr provision · square flange carburetor mounting new utilizes late model alternator and a/c bracket mounting provisions has additional vacuum tap off of runner specifications height frt 3.50 rr 4.50 shipping weight is 14 lbs port size 1.84 height 1.12 width 8120cc everbrighttm see page 10 for images of other finishes 262-400 sb using 1996 later vortec l31 iron heads holley carburetor recommendations 0-80570 570 cfm 0-80670 670 cfm 20-124 universal carb installation kit 8121c satin intake manifolds 8121pc polished everbrighttm features · low rise/dual plane design · idle-5500 rpm power band · no egr provision · square flange carburetor mounting new installation notes utilizes late model alternator and a/c bracket mounting provisions has additional vacuum tap off of runner specifications height frt 3.50 rr 4.50 shipping weight is 14 lbs port size 2.00 height 1.06 width 8121cc see page 10 for images of other finishes 1957-86 262 283 305 327 350 400v8 1987-later w/aluminum heads 1987-later w/cast iron heads holley carburetor recommendations 0-80570 570 cfm square bore 0-80457s 600 cfm square bore 0-4776c 600 cfm square bore 8004c 8024c features · · · · low rise/dual plane design idle-5500 rpm power band no egr provision spread bore and square bore carburetor mounting flange installation notes square bore carburetors may require plate p/n 9006 to seal properly hei will clear thermostat spacer p/n 17-58 may be required specifications height frt 3.50 rr 4.00 shipping weight p/n 8004 is 17 lbs p/n 8024 is 18 lbs port size 1.84 height 1.12 width 8004 1.17 width 8024 or see page 4 for symbol explanation c not legal for street use with a 4-barrel in california on vehicles equipped with a 2-barrel carburetor for which there was no 4-barrel option 16 www.weiand.com

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