P1 | CHEVROLET LS MAIN STUD KIT, GEN 3 & LSX, NOT FOR LT1, 12PT NUTS, E190 SERIES, BLACK OXIDE FINISH

P1 Chevrolet LS Main Stud Kit – Gen 3 & LSX (Not for LT1), 12pt Nuts, E190 Series, Black Oxide
PN# K003-M03E

The P1 Chevrolet LS Main Stud Kit for Gen 3 and LSX engine platforms is engineered to deliver superior bottom-end strength, stability, and precision for high-performance and high-boost LS builds. Designed specifically for traditional Gen 3 and LSX blocks (not compatible with LT1 engines), this kit replaces factory main bolts with significantly stronger and more reliable E190-series studs.

Crafted from our premium E190 material — rated at 190,000 psi ultimate tensile strength — these studs maintain thread integrity, resist stretch under extreme loading, and help keep main caps perfectly aligned during high horsepower, high RPM, and endurance racing conditions. The included 12-point nuts and hardened washers ensure consistent torque values and even clamping across all main cap surfaces.

Finished in durable black oxide, this kit provides both corrosion protection and a clean professional appearance, making it the ideal upgrade for LS street builds, boosted applications, and all-out race engines requiring dependable bottom-end security.

Key Features:

• Designed for Gen 3 & LSX platforms (not for LT1 engines)

• E190 Series material with 190,000 psi UTS for exceptional strength

• Improves main cap stability and alignment under extreme loads

• Ideal for boosted, nitrous, high-RPM, and endurance race engines

• Includes 12-point nuts and hardened washers for consistent torque and clamping

• Black oxide finish for corrosion resistance and long-term durability

• Direct, high-strength replacement for OEM main fasteners