The late 1967 unit has the temperature sending unit boss but is not tapped. Some replacement blocks had 2-bolt main caps 3956618. I still got it wrong the first time. Will need to change raditor to auto for cooling lines or add a aftermarket cooler in front of rad. Plugs, plug wires, distributor cap, rotor. . Block had 'high tower' distributor boss and casting date located on the side of the block until redesigned on November 17, 1969 when recast with 'short tower' distributor boss and casting date moved to bellhousing area.
Replace by 346236 mid-year 1975. Just be sure the suffix is actually what you think it is, they can be hard to read sometimes. Parts cast at the beginning of the shift would have the pointer pointing to the double-dot position as shown in the photo. Crate motor, 285hp, 64cc chamber 3911032. The Chevy 350, introduced in 1967, can still be purchased today as a replacement engine. Roller or flat tappet cam, one-piece rear seal 14094766. Bowtie, Aluminum 72cc chambers Symmetrical ports 10051129.
In all, over 90,000,000 small-blocks have been built in carbureted and fuel injected forms since 1955. V, truck crate motor, 118cc chambers 12562933. Another 1968 396 block casting number 3916323 that's much different from the example above. As new castings are released on late models keep your eyes open for the new numbers. Heater outlet boss on upper right thermostat passage. An arrow points to the beginning of the shift an another dot outside the circle indicates what time of day the cast part was made.
. Starting in 1970, the serial number is stamped either above the oil filter, somewhere on the block pad in front of the cylinder head , or on the transmission flange somewhere. Note 1970 has a 2-digit year code. The small-block engine is a series of automobile V8 engines built by the Chevrolet Division of General Motors using the same basic, and for a V8, smaller engine block. . .
Camel hump,64cc chambers,accessory holes 3927187. . Bowtie, aluminum, 45cc chambers, 1st version, symmetrical ports, 263cc intake ports, splayed valves 10185040. If you are running a website, please link to us. A lot of Chevies came with either, so usually just a set of hedders. 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.
Does not have dowel pins for locating timing chain cover. It persevered until 1978, and came from the factory in displacements ranging from 332 cubic inches up to 428 cubic inches. If… i had this problem on my 84 Chevy truck. If it… I am going to assume that you either have 5. Production from May 1967 to May 1968.
Identical to 3890462 except it has the temperature sending boss. Roller or flat tappet cam, one-piece rear seal 14093638. Over the years, every American General Motors division, except Saturn, used it and its descendants in their vehicles. Chevrolet issued technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what could have happend or not happened. Year Vehicle Application Notes 330817 400 73-76 Pass. Bowtie, siamesed, straight nodular iron main caps, 2-piece seal, 4.
It doesn't indicate what the original equipment was. . The 2-hole plenum was used for the 1968 model year and the open plenum was used on Corvette only. V8 Intake M anifold 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. A flat, slotted head indicates the first shift, the second shift has a round head in the pointer. Has spark plug shield boss.