PART REFERENCE SHEET

PRO 1 275 BIG BLOCK CYLINDER HEADS
Port
Cham.
Int/Exh
Spring Dia.
Part #
Matl.
Vol.
Vol.
Valves
S=Single
Notes
cc
cc
D=Double
19000010
Alum 275 121   2.250/1.880 VJ   Bare
19000070
Alum 275 121   2.190/1.880 VJ   Bare
19000111
Alum 275 121   2.250/1.880 1.550S  
19000112
Alum 275 121   2.250/1.880 1.550D  
19000116
Alum 275 121   2.250/1.880 1.625D  
19000171
Alum 275 121   2.190/1.880 1.550S  
19000172
Alum 275 121   2.190/1.880 1.550D