Intake Manifold Casting Numbers - 1964 through 1972
These intake manifold castings were used in various other models of the Chevrolet lineup such as the passenger car, Chevy II/Nova, Camaro and Corvette. Only Chevelle-specific information is listed here to conserve space. Some casting numbers are NOT listed as they may have been used in other models of the Chevrolet lineup but were NOT used in the Chevelle.
The casting number is probably the most significant feature on an intake manifold. The casting date is usually found near the casting number.
Intake manifolds are normally date coded in the form of a letter for the month (see table below), two numbers for the day and a single number for the year. For example, C259 indicates a date of March 25, 1969.
It's important to remember the 'to' and 'from' dates listed may vary due to production lead time and stock inventories being depleted. For example just because a particular intake casting may be listed as being used in 1964 doesn't imply that the engine assembly plants discarded all pre-1964 intakes or immediately after the model production year discard all intakes they had in inventory to begin using the newer design.
V8 Intake Manifold Casting Month Codes | |||
A - January | B - February | C - March | D - April |
E - May | F - June | G - July | H - August |
I - September | J - October | K - November | L - December |
Caveats to production dates. Due to inventories, shipping schedules, etc. it is entirely possible that intake manifolds being phased out of production may still appear on Chevelles built after that time.
Manifold Number |
Year | Engine | Horsepower | Notes |
3844461 | 1964 1965 |
327 327 |
350 350 |
Aluminum with Holley 4-bbl. Riveted oil splash shield. |
3840905 | 1964 1965 |
283 283 |
195 195 |
Cast iron with Rochester 2-bbl. Riveted oil splash shield. |
3844457 | 1964 | 283 327 |
220 250 |
Cast iron with Carter WCFB or Rochester carburetor. Riveted oil splash shield. |
3844459 | 1964 1965 |
327 327 |
300 300 |
Cast iron with Carter AFB. Riveted oil splash shield. |
3866963 | 1965 | 396 | 375 | Aluminum with Holley 4-bbl. No oil splash shield. |
3866922 | 1965 | 283 327 |
220 250 |
Cast iron with Carter or Rochester 4-bbl. |
3856289 | 1966 | 396 | 325 w/A.I.R. | Cast iron with Rochester and A.I.R. |
3866948 | 1966 1966 1967 |
396 396 396 |
325
w/o A.I.R. 360 350 |
Cast iron with Holley 4-bbl. No oil splash shield. "Holley" cast into top of manifold. |
3872783 | 1966 | 327 | 275 w/o A.I.R. | Cast iron with Holley 4-bbl. |
3875954 | 1966 | 327 | 275 w/A.I.R. | Cast iron with Rochester 4-bbl. |
3877652 | 1966 | 283 | 195 | Cast iron with Rochester 2-bbl. |
3882858 | 1966 | 283 | 220 | Cast iron all 4-bbl. Used extensively as service replacement. |
3883948 | 1966 1967 1968 |
396 396 396 |
325
w/A.I.R. 325 325, 350 |
Cast iron with Rochester 4-bbl. No oil splash shield |
3885069 | 1966 1967 1968 |
396 396 396 |
375 375 375 |
Aluminum
with Holley 4-bbl Three designs, a 3-hole closed plenum, a 2-hole closed plenum and an open plenum. The 3-hole was used from August of 1965 through June of 1967. The 2-hole plenum was used for the 1968 model year and the open plenum was used on Corvette only. No oil splash shield. First with divorced choke design. |
3890490 | 1966 1967 |
327 327 |
350 325 |
Aluminum with Holley 4-bbl. Chevrolet does report any 327/350 engines installed in 1966 Chevelles. |
3905393 | 1967 | 327 | 275 | Cast iron with Rochester 4-bbl. |
3919878 | 1967 1968 |
396 396 |
375 375 |
Aluminum with Holley 4-bbl. Unverified if OE installed from late 1967 through early 1968. This manifold may have been used extensively as a service replacement. No oil splash shield |
3919801 | 1968 | 307 | 200 | Cast iron with Rochester 2-bbl. Riveted oil splash shield. |
3919803 | 1968 | 327 | 250, 275, 325 | Cast iron with Rochester 4-bbl. Riveted oil splash shield. Temperature sending hole is plugged |
3916313 | 1969 1970 |
350 350 |
250 250 |
Cast iron with Rochester 2-bbl. No oil splash shield. |
3933163 | 1969 | 396 | 375 | Aluminum with Holley 4-bbl. Possible late 1968 application. Identical to #3885069 except addition of heater outlet boss on upper right thermostat passage. No oil splash shield. |
3927183 | 1969 1970 |
307 307 |
200 200 |
Cast iron with Rochester 2-bbl. Oil fill tube and water by-pass boss eliminated. Heater nipple boss drilled and tapped on right thermostat passage. |
3927184 | 1969 | 350 | 255, 300 | Cast iron with Rochester 4-bbl. |
3931067 | 1969 | 396 | 325, 350 | Cast i | Heater nipple boss drilled and tapped on right thermostat passage.
3963569 | 1970 | 402 454 |
375 450 |
Aluminum with Holley 4-bbl. Low rise intake. Riveted oil splash shield. |
3955287 | 1970 1971 |
402,
454 402, 454 |
330,
350, 360 300, 365 |
Cast iron with Rochester 4-bbl. Low rise intake. No oil splash shield. |
3965577 | 1970 | 350 | 300 | Cast iron with Rochester 4-bbl. Oil splash shield. |
3973465 | 1971 | 307 | 200 | Cast iron with Rochester 2-bbl. Heater outlet boss on upper right thermostat passage. Oil splash shield. |
3973467 | 1971 | 350 | 245 | Cast iron with Rochester 2-bbl. Heater outlet boss on upper right thermostat passage. Oil tube boss eliminated. Oil splash shield. |
3973469 | 1971 | 350 | 270 | Cast iron with Rochester 4-bbl. Heater outlet boss on upper right thermostat passage. Oil splash shield. |
6262936 | 1972 | 307 | 130 | Cast iron with Rochester 2-bbl. Heater outlet boss on upper right thermostat passage. Oil tube boss eliminated. Oil splash shield. Intake runners have numbers cast for their port. |
6263751 | 1972 | 350 | 175 | Cast iron with Rochester 4-bbl. Heater outlet boss on upper right thermostat passage. Oil tube boss eliminated. Oil splash shield. Intake runners have numbers cast for their port. |
6263752 | 1972 | 350 | 165 | Cast iron with Rochester 2-bbl. Heater outlet boss on upper right thermostat passage. Oil tube boss eliminated. Oil splash shield. Two accessory bosses between #5 and #5 runners. |
6263753 | 1972 | 402, 454 | 240, 270 | Cast iron with Rochester 4-bbl. Intake runners have numbers cast for their port. No oil splash shield. |
Always seems to be exceptions to the rules. This casting #3955287
intake has numbered runners and oil splash shield - neither of which
it was supposed to have.