Does anyone know what the casting numbers on R1 heads should be?
Sonny on the racing forum asked me what mine were, but he hasn't answered so I am curious if my heads are really R1.
The head casting number is: 1557570 with a number "2" below it.
It is the same on both heads.
I just noticed that the 63 Lark 259 engine and my 64 Daytona 259 both have the same casting number except they have a "3" below the number.
Leonard Shepherd
Sonny on the racing forum asked me what mine were, but he hasn't answered so I am curious if my heads are really R1.
The head casting number is: 1557570 with a number "2" below it.
It is the same on both heads.
I just noticed that the 63 Lark 259 engine and my 64 Daytona 259 both have the same casting number except they have a "3" below the number.
Leonard Shepherd
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