PART REFERENCE SHEET

PRO 1 ALUMINUM SMALL-BLOCK CYLINDER HEADS
Port
Cham.
Int/Exh
Spring Dia.
Part #
Matl.
Vol.
Vol.
Plug
Valves
S=Single
Notes
D=Double
11510020P
Alum 215 64 AP 2.05/1.60 VJ   Bare Casting
11511122P
Alum 215 64 AP 2.05/1.60 1.437D  
11511123P
Alum 215 64 AP 2.05/1.60 1.550D  
11520020P
Alum 215 64 ST 2.05/1.60 VJ   Bare Casting
11521122P
Alum 215 64 ST 2.05/1.60 1.437D  
11521123P
Alum 215 64 ST 2.05/1.60 1.550D  
11610020P
Alum 215 72 AP 2.05/1.60 VJ   Bare Casting
11611122P
Alum 215 72 AP 2.05/1.60 1.437D  
11611123P
Alum 215 72 AP 2.05/1.60 1.550D  
11620020P
Alum 215 72 ST 2.05/1.60 VJ   Bare Casting
11621122P
Alum 215 72 ST 2.05/1.60 1.437D  
11621123P
Alum 215 72 ST 2.05/1.60 1.550D