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You are here: Home > Stroker Kits > Chevrolet - LS Series > LS - 3.780 Base Bore
325 and 328 cubic inch LS stroker kits are based on the 3.780 bore LM7 Aluminum or LR4_LY2 iron engine blocks and a 3.622, or 4.000 stroke crankshaft. They are a perfect replacement for the 5.3L if you want the increased power and torque you get from a larger engine. Aftermarket cylinder heads and larger camshafts are a good addition to complement the increased capacity. Custom combinations are also available for specialized applications.




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Available Combinations for the Chevrolet LS 3.780 base bore are 325, and 328 in the conventional 3.780 bore block. Crankshafts are 4340 Forged Steel. Crankshaft models are 1 Piece Rear Main Seal and Standard or Full Center Counterweighted versions. As always Custom Combinations are no problem.

Vigilante - 4340 Forged Steel Crankshaft, 4340 Forged Steel H-Beam Rods, Probe SRS Series Forged Pistons. Designed for Street or Street and Strip performance applications.

Vindicator - 4340 Forged Steel Crankshaft, 4340 Forged Steel H-Beam Rods (w/ARP-2000), Probe PRS Series Forged Pistons. Designed for very serious Street or all out Strip applications.

Vanquisher - 4340 Billet Steel Crankshaft, Premium Connecting Rods (w/ARP-2000), Probe PRS Series Forged Pistons. Designed for very serious Street or all out Strip applications. All components are Made in the USA.
more info
Dish Top
Available Combinations for the Chevrolet LS 3.780 base bore are 325, and 328 in the conventional 3.780 bore block. Crankshafts are 4340 Forged Steel. Crankshaft models are 1 Piece Rear Main Seal and Standard or Full Center Counterweighted versions. As always Custom Combinations are no problem.

Vigilante - 4340 Forged Steel Crankshaft, 4340 Forged Steel H-Beam Rods, Probe SRS Series Forged Pistons. Designed for Street or Street and Strip performance applications.

Vindicator - 4340 Forged Steel Crankshaft, 4340 Forged Steel H-Beam Rods (w/ARP-2000), Probe PRS Series Forged Pistons. Designed for very serious Street or all out Strip applications.

Vanquisher - 4340 Billet Steel Crankshaft, Premium Connecting Rods (w/ARP-2000), Probe PRS Series Forged Pistons. Designed for very serious Street or all out Strip applications. All components are Made in the USA.
more info