Model Number Series Built Dates
& Model data 

Below are the Engines and Motors listed according to Model Number Series, along with the approximate dates that they were manufactured:

DATE

MODEL

MODEL DATA

1948 August to 1962 December

9

Cast Iron

1948 March to1963 September

14

Cast Iron

1949 August to 1956 August

6H

Cast Iron

1949 August to 1953 April

6HF

Cast Iron

1949 August to 1952 May

6HS

Cast Iron

1949 June to 1957 June

5S

Cast Iron

1949 September to 1957 July

6HSF

Cast Iron

1949 August to 1957 June

8

Cast Iron

1949 January to1957 February

23

Cast Iron

1950 March to 1957 January

5

Cast Iron

1950 March to 1957 August

8HF

Cast Iron

1952 June to 1957June

6

Cast Iron

1952 October to 1953 June

6AHS

Cast Iron

1952 August to 1953 July

6AH

Cast Iron

1953 January to 1957 July

8AHF

Cast Iron

1953 May to Ju1y 1958 July

6BH

Aluminum Casting

1953 May to 1958 July

6BHS

Aluminum Casting

1955 June to 1958 July

6B

Aluminum Casting

1955 June to 1958 July

6B

Aluminum Casting

1955 June to 1958 July

B

Aluminum Casting

1955 June to 1958 July

BH

Aluminum Casting

1957 January to1965 August

23A

Cast Iron

1958 June

60100

Kool Bore

1958 July

80300

Kool Bore

1958 July

80400

Kool Bore

1958 June to 1960 January

81700

Sleeve Bore

1958 June to1963 August

60700

Kool Bore

1958 July to1963 August

61700

Sleeve Bore

1958 June to1964 May

60500

Kool Bore

1958 July to May 1964

61500

Sleeve Bore

958 June to1964 July

80500

Kool Bore

1958 June to 1964 July

80700

Kool Bore

1958 December to 1964

80600

Kool Bore

1958 August to 1969 December

81400

Sleeve Bore

1958 August to 1969 December

81100

Sleeve Bore

1960 June

80200

Sleeve Bore

1960 May to1960 November

81600

Sleeve Bore

1958 July to 1965 July

140000

Kool Bore

1958 July to1970 January

61100

Sleeve Bore

1958 July to1970 January

61300

Sleeve Bore

1958 July to 1970 January & 1977 August

81300

Sleeve Bore

1958 July to 1971 August

60400

Kool Bore

1958 July to 1977 August

80100

Kool Bore

958 July to 1977 August to August

41000

Sleeve Bore

1959 July to June 1964

81900

Sleeve Bore

1958 September to 1965 July

343000

Sleeve Bore

1959 September to1960 September

80800

Kool Bore

1959 September to1970 January

61400

Sleeve Bore

1959 July to1964 November

80900

Kool Bore

1960 February to 1962 January

85500

Sleeve Bore

1960 May to1960 August

81800

Sleeve Bore

1960 August to1963 June

23C

Cast Iron

1960 August to1963 March

60900

Kool Bore

1960 August to1963 March

61900

Sleeve Bore

1960 March to 1969 December

81200

Sleeve Bore

1960 July to1970 January

61200

Sleeve Bore

1960 August to 1971 August

60200

Kool Bore

1960 October to 1961 January

85900

Sleeve Bore

1960 October to1961 September

84500

Kool Bore

960 December to1960 September

84700

Kool Bore

961 November to 1987 August

100200

Kool Bore

1962 January to 1977 August

100900

Kool Bore

1962 May to 1965 July

142000

Kool Bore

1963 January to1965 August

l9D

Cast Iron

1963 April to1965 August

23D

Cast Iron

1964 July to June 1965 June

82500

Kool Bore

1964 July to1965 August

82900

Kool Bore

1965 July to 1971 August

146400

Kool Bore

1965 July to 1966 August

91400

Cast Iron

1965 June to 1968 August

92500

Kool Bore/Choke-A-Matic

1965 June to 1968 August

92900

Kool Bore Choke-A-Matic

1965 August to May 1966

144000

Kool Bore

1965 August to 1966 August

145000

Sleeve Bore

1965 August to 1966 September

193400

Cast Iron

1965 August

230000

Cast Iron

1965 August

240000

Cast Iron

1966 July

130900

Kool Bore

1966 July

130200

Kool Bore

1966 July

170700

Kool Bore

1966 August

10400

Kool Bore

1966 August to 1975

200000

Cast Iron

1966 November to 1971 August

30000

Cast Iron/Synchro-Balanced

1967 October to 1969 April

171700

Kool Bore/Synchro-Balanced

1968 August

92900

Kool Bore/Automatic Choke

1968 August

92500

Kool Bore/Automatic Choke

1969 April to 1971 August

320000

Cast Iron/Synchro-Balanced

1969 June

190400

Kool Bore

1969 June

190700

Kool Bore

1971 June to 1972 August

301400

Cast Iron/Synchro-Balanced

1971 June to 1972 November

325400

Cast Iron/Synchro-Balanced

1972 September to 1977 August

302400

Cast Iron/Synchro-Balanced

1972 February

326400

Cast Iron/Synchro-Balanced

1973 October

110900

Kool Bore

1973 May to 1977 August

251400

Kool Bore/Synchro-Balanced

1973 May to 1977 August

251700

Kool Bore/Synchro-Balanced

1976 August to 1983 August

111900

Kool Bore

1976 August to Aug 1983 August

111200

Kool Bore

1977 August

252400

Kool Bore/Synchro-Balanced

1977 August

252700

Kool Bore/Synchro-Balanced

1977 November

253400

Kool Bore/Synchro-Balanced

1977 December to 1981 August

401400

Kool Bore

1977 December to 1981 August

401700

Kool Bore

1978 July

131400

Sleeve Bore I/C

1978 July

131900

Sleeve Bore I/C

1978 July

131200

Sleeve Bore I/C

1978 July to 1980 July

220400

Kool Bore

1978 July

220700

Kool Bore

1979 January to 1981 August

401430

Kool Bore

1980 April to1981 August

421700

Kool Bore

1980 May

62030

Kool Bore -Two Cycle

1980 August

94500

Automatic Choke Quiet Series

1980 August

94900

Automatic Choke Quiet Series

1980 August

113900

Kool Bore Quiet Series

1980 August to 1982 August

95500

Automatic Choke/Quiet Series

1980 August

221400

Sleeve Bore I/C

1980 August

222400

Kool Bore

1980 August

402400

Sleeve Bore I/C

1980 August

422400

Sleeve Bore I/C

1981 August

93500

Kool Bore/Automatic Choke

1981 August

112200

1981 August

402700

Sleeve Bore I/C

1981 August

422700

SleeveBore I/C

1982 August

82200

SleeveBore I/C Quiet Series

1982 August

114900

SleeveBore I/C Quiet Series

1982 August

132200

Sleeve Bore I/C Quiet Series

1982 August

132400

Sleeve Bore I/C Quiet Series

1982 August

132900

Sleeve Bore I/C Quiet Series

1983 January

171400

Sleeve Bore I/C Quiet Series

1983 August

82300

Sleeve Bore I/C Quiet Series

1983 August

82400

SleeveBore I/C Quiet Series

1983 August

112900

Sleeve Bore

1983 August to 1984 August

101120

Electric 120 Volt Moto

1983 August

193700

Sleeve Bore I/C Synchro-balanced

1983 August

192700

Sleeve Bore I/C

1984 to October

90700

Kool Bore/Max Series

1984 to October

91700

Kool Bore/Max Series

1984 October

110700

Kool Bore/Max Series

1984 October

111700

Kool Bore/Quiet Max Series

1984 October

112700

Sleeve Bore/Max Series

1982 August

253700

Sleeve Bore I/C Synchro-Balanced

1984 August

254400

Sleeve Bore I/C Synchro-Balanced

1983 August to 1984 August

748000

Electric 120-Volt Motor