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Corvette Holley Carburetors

 

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 Holley Carburetor Numerical Listing (Requires Adobe Reader). Data are taken from GM's Information Kit for each applicable year.

Year Engine Specifics GM Model # Holley List #
1964 327 365 hp 3849804 R2818A
1965 327 365 hp
3849804
R2818A
  396 425 hp 3868823 R3124A
1966 427 425/450 hp 3886101 R3247A
  327 300/350 hp 3884505 R3367A
  427 390 hp 3882835 R3370A
  327 300/350 hp w/A.I.R 3890499 R3605A
  427 390 hp w/A.I.R. 3892341 R3606A
1967 427 430 hp (L88) n/a R3818A
  427 400/435 hp front/rear carburetor 3902353 R3659A
  427 400/435 hp center carburetor, manual transmission 3902355 R3660A
  327 300/350 hp 3906631 R3810A
  327 300/350 hp w/A.I.R. n/a R3814A
  427 390 hp 3906633 R3811A
  427 390 hp w/A.I.R. n/a R3815A
  427 400 hp center carburetor, automatic transmission 3902355 R3888A




1968 427 400 hp, center carburetor, manual transmission
427 400 hp, front/rear carburetors, manual transmission
427 400 hp, center carburetor, automatic transmission
427 400 hp, front/rear carburetors, automatic transmission
427 435 hp, center carburetor
427 435 hp, front/rear carburetors
3925517
3902353
3925516
3902353
3925517
3902353
List numbers not shown
1969 427 400/435 hp, front/rear carburetors
427 400/435 hp, center carburetor, manual transmission
427 400 hp, center carburetor, automatic transmission
427 390 hp, first design
427 430 hp, second design
3902353
3940929
3940930
3925519
3955205
R3659A
R4055-1A
R4056-1A
R4054A
R4296A
1970 350 370 hp, evaporative emission control
350 370 hp
3792123
3792121
R4489A
R4555A
1971 350 330 hp
454 425 hp, manual transmission
454 425 hp, automatic transmission
3989021
3986195
3986196
R4801A
R4802A
R4803A
1972 350 255 hp 3999263 R6239A




 

Holley Three-Digit Date Codes - Through 1972

1st Digit

2nd Digit

3rd Digit

Stamp Year Stamp Month Stamp Week
4 1964 1 January 1 1st week
5 1965 2 February 2 2nd week
6 1966 3 March 3 3rd week
7 1967 4 April 4 4th week
8 1968 5 May 5 5th week
9 1969 6 June    
0 1970 7 July    
1 1971 8 August    
2 1972 9 September    
    0 October    
    A November    
    B December    

 

 



Holley Four Digit Date Codes - 1973 and later

First Three Digits

Fourth Digit
Julian Date Stamp Month Year
Regular Year Leap Year   Stamp Year
001-031 001-031 January 1973
032-059 032-060 February 4 1974
060-090 061-091 March 5 1975
091-120 092-121 April 6 1976
121-151 122-152 May 7 1977
152-181 153-182 June 8 1978
182-212 183-231 July 9 1979
213-243 214-244 August 0 1980-1990
244-273 245-275 September 1 1981-1991
274-304 276-305 October 2 1982-1992
305-334 306-335 November    
335-365 336-366 December    

 


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