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  Home > Stroker Kits by VPE > Chevrolet - LS Series > LS - 4.125 Base Bore > Flat Top >

B_Vigilante Engine Kit_Chevrolet LS 428_6.125 Rod_Flat_-2.7cc_Internal_15d Head_24 Tooth
VPE Vigilante Engine Kit

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Available Part Numbers/Oversize

9131-17032-000 - 4.125
9131-17032-005 - 4.130
9131-17032-010 - 4.135
9131-17032-030 - 4.155


Stroker Kits - Done Right

VPE Vigilante Engine Kits are available in various displacements and are suitable for stock or aftermarket blocks, consisting of 4340 Steel H-Beam Connecting Rods, a 4340 Forged Steel Crankshaft and Probe SRS Series 2618-t6 Forged Pistons. Most feature Nitride Steel Top/Napier Second Ring Sets. They are perfectly suited for stock replacement applications, or they can be set up with boost or increased compression for high performance street or street and strip combinations.

The longest rod feasible is utilized in each instance, which gains the maximum piston to counterweight and rod bolt to camshaft clearance possible, as well as decreased piston weight.

Altered stroke and/or compression ratios are not legal for use in emissions controlled vehicles.

Vigilante Engine Kit

  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods
  • Probe SRS Series 2618-t61 Forged Pistons
  • Reduced Tension High-Performance Ring Sets
  • ARP 8740 Cap Screws
  • Balancing is available upon request
  • Components rated at 700+ Horsepower


If you can't find the kit you're looking for please contact us at [email protected] and we'll be happy to assist you in designing a kit that exactly suits your preferences.

Please allow 4 to 6 weeks for piston manufacture

www.P65Warnings.ca.gov

Item# Item Name Price Qty Add
9131-17032-000 428 Vigilante Engine Kit_4.125 (000)
$3,050.00
9131-17032-005 429 Vigilante Engine Kit_4.130 (030)
$3,050.00
9131-17032-010 430 Vigilante Engine Kit_4.135 (040)
$3,050.00
9131-17032-030 434 Vigilante Engine Kit_4.155 (040)
$3,050.00
Check the items you wish to purchase, then click


Technical Specs:
Item Code 9131-17032
Vendor NameVPE
Product TypeEngine Kit
Product SeriesVigilante
Engine Displacement428
Engine FamilyLS Series V-8
BlockFactory or Aftermarket
Block Height9.240
Base Bore4.125
Piston ManufacturerProbe Industries
Valve ReliefsAll 15d Heads
Piston Material2618-t61
Piston StyleFlat Top
Piston Net Volume-2.7
Compression Height1.105
Pin Diameter.927
Pin Type.150 Wall x 2.300 Long
Pin Material5115 Steel
Ring TypeNitride Steel Top _ Napier Second
Ring Width1.5 - 1.5 - 3.0
Gas PortsNo
Gas Port TypeN/A
Crankshaft VendorScat Enterprises
Crankshaft Material4340 Forged Steel
Crankshaft Stroke4.000
Center CounterweightYes
Reluctor Wheel24
Main Journal2.559
Rod Journal2.100
Rear Main Seal1 Piece
Engine BearingsKing XP Series
BalanceInternal
Rough Bob Weight1,800
BalancedNo
Rod VendorMolnar
Rod TypeH-Beam
Rod Length6.125
Pin EndFloating
Rod Material4340 Forged Steel
Rod BoltARP 8740 Cap Screw
Notes:




Compression Ratio:

 Cylinder Head Volume
Part Number Net cc 64cc 68cc 70cc
9131-17032-000 -2.7 12.24 11.69 11.43
9131-17032-005 -2.7 12.26 11.71 11.46
9131-17032-010 -2.7 12.29 11.74 11.48
9131-17032-030 -2.7 12.39 11.84 11.58
Computed with .010 deck and .040 x 4.200 gasket

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Stroker Kits by VPE > Chevrolet - LS Series > LS - 4.125 Base Bore > Flat Top