Thread: NOS 428 fitted block
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  #19  
Old 12-17-2022, 11:27 AM
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Sirrotica Sirrotica is offline
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Quote:
Originally Posted by Half-Inch Stud View Post
Hmmm, Pontiac 350 slugs are bulletproof, while the 428-455 upper ring land are wine glass sensitive to detonation under load.
Not quite, I've broken factory 350 pistons, 389, 400, 428, and 455, pistons.

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