29069 Calahan Rd, Roseville, MI 48066
Info: 586-772-0000 | Orders: 800-828-7229

1969-1974 Corvette New Repro 3974014 BB Fan Shroud Extension 427/454 69 70 71-74

This is for a New High Quality Reproduction Plastic Chevy Corvette BB Fan Shroud Extension, (Replacement for GM Part Number 3974014, GM Group Number 1.277), for 1973 73 1974 74 and 1969 69 with 427/ 454 CID Engines.


Per the GM Corvette Assembly Instruction Manual from 1969, 1970, 1971, and 1972, 3956089 was the original part number and appears to have been change starting in 1973 to 3974014. It appears that NCRS and Bloomington are considering this the Correct Plastic Reproduction 69-72 and (73-74 454 Replacement), however you must perform your own due diligence in regard to these two part numbers, which will be correct for your particular vehicle, we currentl have both in stock.


It may also fit other years, but do your own research to verify proper fit for your particular Corvette shroud combination.  If this is not the part you need, please see our other listings. This item can be picked up at our Corvette Parts and Service Center, Tracy Performance, 29069 Calahan Road, Roseville, Michigan 48066-1805, (just Northeast of Detroit), to save shipping costs.

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Vehicle Applications:
1974 Chevrolet Corvette Big Block 
1973 Chevrolet Corvette Big Block 
1972 Chevrolet Corvette Big Block 
1971 Chevrolet Corvette Big Block 
1970 Chevrolet Corvette Big Block 
1969 Chevrolet Corvette Big Block 

Item #:12155
Corvette Series:C3 1968-1982
GM Group Number:1.277
Manufacturer Part #:3974014
Casting Number:3974014
Casting Date:1969-1974
Interchange Part #:3974014
Placement Details:Attaches to Shroud
Surface Finish:New
This Item is Currently Unavailable

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New Reproduction Chevy Corvette Fan Shroud Extension replacement for GM Part Number 3974014, GM Group Number 1.277 1973 73 1974 74 1969 69 427/454 CID Engines Chevy Chevrolet C1 C2 C3 C4 C5 C6 Corvette NCRS Top Flight Bloomington Gold Tracy Performance Corvette Parts Roseville Detroit Michigan 48066 Sting Ray 283 302 327 348 350 396 402 409 427 454 502 Engine Transmission