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Chevy Big-Block V8  |  Piston Pin Retainers
  

 
 

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Modifier      
3942423 Spirolox Retainer      
1.103" OD x .050" thick. Replacement retainer for 427ci 1969 L-88 engine.   Small Image
 
Modifier      
3964238 Spirolox Retainer      
1.103" OD x .072" thick. Use when converting special high performance and heavy-duty 454 pistons to floating pins.   Small Image
Technical Notes: This retainer is recommended for competition engines. The piston pin retainer grooves may have to be widened to fit this Spirolox.

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