$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

Summit Racing SpeedCard - learn how to get 10% back - Get Details!

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  • Bore (in.)
  • Bore (mm)
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  • Piston Ring Thickness
  • Top Ring Thickness
Diamond Pistons

BUICK Diamond Pistons Pistons

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Diamond Pistons Buick 231 Forced Induction Dish Series Pistons 21401

Diamond Pistons Buick 231 Forced Induction Dish Series Pistons 21401

Diamond Pistons Buick 231 Forced Induction Dish Series Pistons 21401

Buick 231 DS 3.820B/1.850CD

Part Number: DPP-21401

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

Diamond Pistons Buick 3800 Forced Induction Dish Series Pistons 21407

Diamond Pistons Buick 3800 Forced Induction Dish Series Pistons 21407

Diamond Pistons Buick 3800 Forced Induction Dish Series Pistons 21407

Buick 3800 DS 3.820B/1.205CD

Part Number: DPP-21407

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

Diamond Pistons Buick 3800 Forced Induction Dish Series Pistons 21408

Diamond Pistons Buick 3800 Forced Induction Dish Series Pistons 21408

Diamond Pistons Buick 3800 Forced Induction Dish Series Pistons 21408

Buick 3800 DS 3.800B/1.205CD

Part Number: DPP-21408

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

Diamond Pistons Buick 3800 Forced Induction Dish Series Pistons 21411

Diamond Pistons Buick 3800 Forced Induction Dish Series Pistons 21411

Diamond Pistons Buick 3800 Forced Induction Dish Series Pistons 21411

Buick 3800 DS 3.800B/1.205CD

Part Number: DPP-21411

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

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Summit Racing Speedcard. Synchrony Car Care.

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