73- 455 rebuild questions

Discussion in 'Race 400/430/455' started by 69 GS Ragtop, Jul 14, 2013.

  1. 69 GS Ragtop

    69 GS Ragtop 69 GS Ragtop

    Im rebuilding a 73 455,
    im using seal power SLP-L2353F30 forged pistons 30 over with L2353F+30 plus moly ring set (Hastings/Perfect Circle/MAHLE) P/N L2353F-KIT
    What is the should it be bored to being they expand?
    What ring gaps should be used?

    Crank question what kind of clearences should i look for?to get optimum street use?
    Im using 67 big port 430 heads,will i need to block any water jackets or preform any mods?
     

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