NHRA Accepted Products Table of Contents - NHRA.com
NHRA Accepted Products Table of Contents - NHRA.com
NHRA Accepted Products Table of Contents - NHRA.com
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<strong>NHRA</strong> <strong>Accepted</strong> <strong>Products</strong>V. FOR CLASSES LIMITED TO ANY STANDARD OEM CARBURETOR(S) OR ANY PRODUCTION CARBURETOR(S).CARBURETOR MANUFACTURER MUST BE REPRESENTED IN THE <strong>NHRA</strong> 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 <strong>NHRA</strong>BlueprintBulletins; 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 <strong>of</strong> 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