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Diamond Pistons

Buick V6 - 231
Forced Induction - Dish
Piston

• Upgraded replacement type forged piston. 2618 alloy.
• Engineered for turbo applications.
• .250” undercrown thickness.
• Ratios figured “0” deck@9.510”.
• Standard 1/16” x 1/16” x 3/16” ring package.
• Top ring down = .280”.
• Premium 4130 pins included.
• Revised quench area improves performance.

Buick V6 231 - Ring Set 09023820
Part #
Bore
Stroke
Rod
C.D.
Wt
Pin
CC's
Comp Ratio
Purchase Online
40cc 44cc 48cc
21401
$618
3.820
3.830
3.840
3.400
5.960
1.850
528
.940
-29.5
9.4
9.0
8.6

 
Call 1-877-354-3812
to order your Parts Today!

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RPM Machine-Performance Auto Parts
PO Box 281
Cedar Valley, Utah 84013
We carry parts from scat, je, wiseco, ross, crower, callies, eagle, cat, eagle
Most of our rotating assemblies include forged pistons
and 4340 steelcranks

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