PART REFERENCE SHEET

PRO 1 ALUMINUM 275 BIG BLOCK MARINE CYLINDER HEADS
Port
Cham.
Valves
Spring Dia.
Part #
Matl.
Vol.
Vol.
S/S Intake
H=Hydraulic
Notes
cc
cc
Inconel Exh.
Roller
19000010M
Alum 275 121   2.250/1.880 VJ   Bare Marine
19000070M
Alum 275 121   2.190/1.880 VJ   Bare Marine
19000172M
Alum 275 121   2.190/1.880 Inc 1.550H  
19000112M
Alum 275 121   2.250/1.880 Inc 1.550H