History of the Stovebolt 6 Engine

horsepower | casting codes | head-bolt patterns | side/valve covers

1954Advance-Design.com

1929-1962
Chevrolet L-6 (straight/in-line 6) Overhead Valve Engines

the Stovebolt Six - the Cast-Iron Wonder
valve covers, side cover,
oil fillers

information was obtained from Shop Manuals


First Generation 1929-1936

Low-Pressure Oil (internal lubrication) System

Year
Truck
& Pass


- valve cover
- oil filler
- side cover
Truck
-valve cover
- oil filler
- side cover
Truck
- valve cover
- oil filler
- side cover
1929
194 c.i.





1930
194 c.i.





1931
194 c.i.





1932
194 c.i.





1933
194 c.i.





1934
194 c.i.



207 c.i.

1935
194 c.i.

181 c.i.

207 c.i.

1936
194 c.i.

181 c.i.

207 c.i.


Second Generation 1937-1953

Low-Pressure Oil (internal lubrication) System

Year
Truck
& Pass
- valve cover
- oil filler
- side cover
Truck
- valve cover
- oil filler
- side cover
Pass
- valve cover
- oil filler
- side cover
1937
216 c.i.
- 2 bolts in top
- flat cap on road draft tube
- block and head (over lifter/push-rods AND spark plugs)




1938
216 c.i.
same as 1937 216 c.i.




1939
216 c.i.
same as 1937 216 c.i.




1940
216 c.i.
same as 1937 216 c.i.




1941
216 c.i.
same as 1937 216 c.i.
235 c.i.
same as 1937 216 c.i.


1942
216 c.i.
same as 1937 216 c.i.
235 c.i.
same as 1937 216 c.i.


1943
216 c.i.
same as 1937 216 c.i.
235 c.i.
same as 1937 216 c.i.


1944
216 c.i.
same as 1937 216 c.i.
235 c.i.
same as 1937 216 c.i.


1945
216 c.i.
same as 1937 216 c.i.
235 c.i.
same as 1937 216 c.i.


1946
216 c.i.
same as 1937 216 c.i.
235 c.i.
same as 1937 216 c.i.


1947
216 c.i.
same as 1937 216 c.i.
235 c.i.
same as 1937 216 c.i.


1948
216 c.i.
same as 1937 216 c.i.
235 c.i.
same as 1937 216 c.i.


1949
216 c.i.
same as 1937 216 c.i.
235 c.i.
same as 1937 216 c.i.


1950
216 c.i.
same as 1937 216 c.i.
235 c.i.
- 2 bolts in top
- flat cap on road draft tube
- block (over lifter/push-rods)
235 c.i.
- 2 bolts in top
- flat cap on road draft tube
- block (over lifter/push-rods)
1951
216 c.i.
same as 1937 216 c.i.
235 c.i.
- 2 bolts in top
- flat cap on road draft tube
- block (over lifter/push-rods)
235 c.i.
- 2 bolts in top
- flat cap on road draft tube
- block (over lifter/push-rods)
1952
216 c.i.
same as 1937 216 c.i.
235 c.i.
- 2 bolts in top
- flat cap on road draft tube
- block (over lifter/push-rods)
235 c.i.
- 2 bolts in top
- flat cap on road draft tube
- block (over lifter/push-rods)
1953
216 c.i.
same as 1937 216 c.i.
235 c.i.
- 2 bolts in top
- flat cap on road draft tube
- block (over lifter/push-rods)
235 c.i.
- 2 bolts in top
- flat cap on road draft tube
- block (over lifter/push-rods)

note: All 1950-1962 235/261 engines used the same same short side cover (on the block, over the lifters and push rods, but not over the spark plugs).


Third Generation 1954-1962
High-Pressure Oil System (internal lubrication)

Year
Pass
- valve cover
- oil filler
- side cover
Truck
- valve cover
- oil filler
- side cover
Truck
- valve cover
- oil filler
- side cover
1954
235 c.i.
- ?????? 4 screws on edge;
vents/slits in cover
- flat filler cap in front of valve cover
-block (over lifter/push-rods)
235 c.i.
- 4 screws on edge
vents/slits in cover
- flat filler cap in front of valve cover
-block (over lifter/push-rods)
261 c.i.
- 4 screws on edge; PCV fitting
- flat filler cap in front of valve cover
- block (over lifter/push-rods)
1955
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
261 c.i.
- 4 screws on edge; PCV fitting
- flat filler cap in front of valve cover
- block (over lifter/push-rods)
1956
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
261 c.i.
- 4 screws on edge; PCV fitting
- flat filler cap
- block (over lifter/push-rods)
1957
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
261 c.i.
- 4 screws on edge; PCV fitting
- flat filler cap in front of valve cover
- block (over lifter/push-rods)
1958
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
261 c.i.
- 4 screws on edge; PCV fitting
- flat filler cap in front of valve cover
- block (over lifter/push-rods)
1959
235 c.i.
- 4 screws on edge
- vented filler cap in middle of valve cover
- block (over lifter/push-rods)
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
261 c.i.
- 4 screws on edge; PCV fitting
- flat filler cap in front of valve cover
- block (over lifter/push-rods)
1960
235 c.i.
- 4 screws on edge
- vented filler cap in middle of valve
- block (over lifter/push-rods)
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
261 c.i.
- 4 screws on edge; PCV fitting
- flat filler cap in front of valve cover
- block (over lifter/push-rods)
1961

- 4 screws on edge
- vented filler cap in middle of valve
- block (over lifter/push-rods)
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
261 c.i.
- 4 screws on edge; PCV fitting
- flat filler cap in front of valve cover
- block (over lifter/push-rods)

1962


- 4 screws on edge
- vented filler cap in middle of valve
- block (over lifter/push-rods)
235 c.i.
- 4 screws on edge
- vented filler cap in front of valve cover
- block (over lifter/push-rods)
261 c.i.
- 4 screws on edge; PCV fitting
- flat filler cap in front of valve cover
- block (over lifter/push-rods)

History of the Stovebolt 6 Engine

horsepower | casting codes | head-bolt patterns | side/valve covers

1954Advance-Design.com

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