Exterior Components› Body Panels and Components

Sun Coast Converters

Suncoast Converters Line Pressure Booster Kit - Early Style 4L60E-LB1

$69.20

SKU: S02K 4L60E-LB1

In Stock
In Stock
Ships by Jun 14
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sun Coast Converters 4L60E-LB1 is a line pressure booster kit designed for early-style GM 4L60-E, 4L65-E, and 4L70-E transmission pumps. This kit includes a stronger pressure regulator spring and a large ratio boost valve to progressively increase line pressure as driving conditions demand more. It aims to achieve shorter shifts and increased torque capacity without causing low-speed harshness.

Fitment

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Specifications

BrandSun Coast Converters
Part NumberS02K 4L60E-LB1

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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