NHRA Accepted Products Table of Contents - NHRA.com

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NHRA Accepted ProductsV. FOR CLASSES LIMITED TO ANY STANDARD OEM CARBURETOR(S) OR ANY PRODUCTION CARBURETOR(S).CARBURETOR MANUFACTURER MUST BE REPRESENTED IN THE NHRA BLUEPRINT BULLETINS.Applicable Classes: A/EX, B/EX, C/EX, D/EX, E/EX, D/ED, E/ED, F/ED, G/ED, E/EA, F/EA, G/EA, H/EAPart Primary Primary Secondary SecondaryManufacturer Number Throttle Bore Venturi Throttle Bore Venturi Applicable Notes1. * = All venturi dimensions include the .005"maximum allowance.Any carburetormanufacturerrepresented inthe NHRABlueprintBulletins; i.e.Holley, Carter,Rochester,Autolite, Ford,Straumberg,etc. isaccepted.Anycarburetorsproduced byan acceptedmanufacturerplus thespecificcarburetorslisted below.For any accepted carburetor(s) not specifically listed(or noted) any size throttle bores and venturis asproduced are permitted; no size limits apply but nomodifications from the as produced throttle bore andventuri dimensions are permitted.Barry Grant 1563010DR 1.750" 1.589" * 1.750" 1.589" *Quick Fuel SSR-850 1.750" 1.567" * 1.750" 1.567" *Quick Fuel SSR-8562 1.750" 1.589" * 1.750" 1.589" *Weber # Any 2.166" Any NA NA2. Except as noted below for A/EX through E/EXthrottle shafts and plates must remain as produced.For D/ED through G/ED and E/EA through H/EA theminimum throttle shaft diameter at the thinnestpoint is .085" and the minimum throttle platethickness at the thinnest point is .040".3. For all carburetors used in these classesmodifications are limited to removing the air horn,choke plate, shaft, and operating mechanism;replacing boosters, jets, needles and seats,accelerator pumps, and squirters; replacing orblocking power valves; replacing or modifying floatassemblies, baffles, and metering rods; resizingexisting fuel and air bleed passages; drilling idleholes in the primary throttle plates; and polishingany surfaces. The original bodies, base plates,float bowls, and metering blocks are required.4. Any of the OEM or aftermarket accepted 600,750, or 850 CFM carburetors listed in sections I, II,or III above may also be used in these classes. Forthese applications the throttle bore, venturi, throttleshaft and plate dimensions listed in sections I, II, orIII apply for these carburetors only.5. # = Weber permitted in D/ED through G/ED andE/EA through G/EA only.Page 118 1/14/2014
NHRA Accepted ProductsVI. FOR CLASSES LIMITED TO TWO ONLY SINGLE OR TWO BARREL DOWNDRAFT CARBURETORS:Applicable Class: SS/VXPart Primary Primary Secondary SecondaryManufacturer Number Throttle Bore Venturi Throttle Bore Venturi Applicable NotesKadron Any 2.047" 1.732" * 2.047" 1.732" *Weber Any 2.047" 1.732" * 2.047" 1.732" *Dellortoro Any 2.047" 1.732" * 2.047" 1.732" *Empi Any 2.047" 1.732" * 2.047" 1.732" *1. * = All venturi dimensions are maximum, there isno allowance/tolerance.2. Throttle shafts and plates must remain asproduced.3. For all carburetors used in these classesmodifications are limited to removing the air horn,choke plate, shaft, and operating mechanism;replacing boosters, jets, needles and seats,accelerator pumps, and squirters; replacing ormodifying float assemblies, baffles, and meteringrods; resizing existing fuel and air bleed passages;drilling idle holes in the primary throttle plates; andpolishing any surfaces. The original bodies, baseplates, float bowls, and metering blocks arerequired.Page 119 1/14/2014
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NHRA Accepted ProductsTable of Cont
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CIDYEARPISTON#FACTORY HPMINIMUMCOMP
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CID YEAR PISTON#FACTORYHPNHRA Accep
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CIDYEARPISTON#FACTORY HPMINIMUMCOMP
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CID YEAR PISTON#307 68-73CP PISTONS
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CID YEAR PISTON#350 76-80CP Pistons
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CID YEAR PISTON#427 66-67TRWTRWSEAL
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CID YEAR PISTON# FACTORY HP135 83-8
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CID YEAR PISTON# FACTORY HP238 87-9
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CID YEAR PISTON# FACTORY HPNHRA Acc
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CID YEAR PISTON#FACTORYHPMINIMUMCOM
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CID YEAR PISTON# FACTORY HPMINIMUMC
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CID YEAR PISTON# FACTORY HPMINIMUMC
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CIDYEAR350 74-77VENOLIA 985VENOLIA
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NHRA Accepted ProductsNHRA Accepted
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HPENHRA Accepted ProductsNHRA Accep
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NHRA Accepted ProductsNHRA Accepted
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Page 72 and 73: ROD MANUFACTURERNHRA Accepted Produ
Page 74 and 75: ROD MANUFACTURERNHRA Accepted Produ
Page 84 and 85: NHRA Accepted ProductsStock/Super S
Page 98 and 99: NHRA Accepted ProductsOil Retention
Page 100 and 101: FUEL MANUFACTURER/BLENDACCEPTED GAS
Page 114 and 115: NHRA Accepted ProductsI.FOR CLASSES
Page 116 and 117: NHRA Accepted ProductsIII. FOR CLAS
Page 120 and 121: NHRA Accepted ProductsVII. FOR CLAS
Page 122 and 123: NHRA Accepted ProductsIX. FOR CLASS
Page 124 and 125: NHRA Accepted ProductsXI.FOR CLASSE
Page 126 and 127: NHRA Accepted ProductsXIII.NHRA Acc
Page 130 and 131: CRANK MANUFACTURERNHRA Accepted Pro
Page 138 and 139: NHRA Accepted ProductsCLASSMSD 4223
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NHRA Accepted Products Table of Contents - NHRA.com

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