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Home >>
Pistons >>
Wiseco Pistons
>> Chevy >>
BB 540 & Stroker |
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(K420-K422 Series) |
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Wiseco Pistons - Chevy
Big Block 540 & Stroker
Included: Pistons, Pins & Spirolox (no rings)
Using a .043" Pro Top Ring adds top land strength. Generous valve
pockets are compatible with all but the most seriously milled cylinder
heads. Full round 2618 forgings and a newly designed skirt shape keep
piston rock to a minimum and ring seal at a max. "Off-the-shelf"
availability means they will be available to keep you going during the
racing season.
The Big Chief/Big Duke piston series is the most advanced available.
All use design features learned from dominating Pro Stock. Full round
2618 forgings and a newly designed skirt shape keep piston rock to a
minimum and ring seal at a max.
All Pistons Feature:
- Radiused Valve Pockets
- Anti Detonation Grooves with the added benefit of
keeping the top ring groove free of carbon
- Pressure groove for enhanced ring seal.
- Features Chrome Moly Pins and Spirolox
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Part # |
Bore |
Comp
HT |
Stroke |
Rod |
Avg.
WT |
Vol. |
Comp Ratio at: |
Price |
| 110cc |
114cc |
119cc |
123cc |
540 & Stroker - Dome - Nitrous -
Open Chamber - Pro Series .043 Top
(STD Tension Rings: .043bc, 1/16, 3/16) |
| K426BS |
4.500 |
1.270 |
4.250
4.250 |
6.385
6.800 |
612 |
38
Hollow |
14.5
14.5 |
13.9
13.9 |
13.2
13.2 |
12.7
12.7 |
$655 |
| K426B3 |
4.530 |
$655 |
| K426B6 |
4.560 |
$655 |
| K426B100 |
4.600 |
$655 |
| K426B110 |
4.610 |
$655 |
| K426B125 |
4.625 |
$655 |
| K427BS |
4.500 |
1.120 |
4.250
4.500
4.750 |
6.535
6.800
6.700 |
568 |
38.0
Hollow |
14.5
15.3
16.0 |
13.9
14.6
15.4 |
13.2
14.0
14.6 |
12.7
13.4
14.1 |
$655 |
| K427B3 |
4.530 |
$655 |
| K427B6 |
4.560 |
$655 |
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K427B100 |
4.600 |
$655 |
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K427B110 |
4.610 |
$655 |
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K427B125 |
4.625 |
$655 |
540 & Stroker - Dome - Nitrous Big
Chief/Big Duke/Oldsmobile 14°-18° Combo Dome -
Gas
Ported
(STD Tension Rings: .043bc, 1/16, 3/16) |
| K422B6 |
4.560 |
1.270 |
4.250
4.250 |
6.385
6.800 |
631 |
15.6
Solid |
17.0 |
15.0 |
14.3 |
14.0 |
$675 |
| K422B8 |
4.580 |
$675 |
| K422B100 |
4.600 |
$675 |
| K422B110 |
4.610 |
$675 |
| K422B125 |
4.625 |
$675 |
| K421B6 |
4.560 |
1.150 |
4.500 |
6.800 |
596 |
15.6
Solid |
18.0 |
15.8 |
15.1 |
14.8 |
$675 |
| K421B8 |
4.580 |
$675 |
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K421B100 |
4.600 |
$675 |
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K421B110 |
4.610 |
$675 |
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K421B125 |
4.625 |
$675 |
| K420B6 |
4.560 |
1.120 |
4.250
4.500
4.750 |
6.535
6.800
6.700 |
583 |
15.6
Solid |
17.0
18.0
19.0 |
15.0
15.8
16.6 |
14.3
15.1
15.9 |
14.0
14.8
15.5 |
$675 |
| K420B8 |
4.580 |
$675 |
| K420B100 |
4.600 |
$675 |
| K420B110 |
4.610 |
$675 |
| K420B125 |
4.625 |
$675 |
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Sales/Tech Line: (603) 378-0090
Email: tech@FlatlanderRacing.com
Thank You for visiting Flatlander Racing
*All prices on this site are subject to change without notice. Flatlander Racing™ disclaims responsibility for any printing or typographical errors,
and does not guarantee that all information is accurate.
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