Performance Springs Holden LS1 Single Beehive Valve Springs – PS BH503

Performance Springs PS BH503 Single Beehive Valve Springs are designed for Holden LS1 engines.

These performance single beehive valve springs are designed to provide reliable valve train control for Holden LS1 applications, with a maximum specified valve lift of 0.500". Performance Valve Springs describes the PS BH503 as equivalent to OEM springs while providing a performance-oriented replacement solution.

The PS BH503 has a fitted height of 1.800" (45.7 mm), with 90 lb of spring pressure at 1.800" and 240 lb at 1.250" (31.7 mm). Coil bind is specified at 1.170" (29.7 mm).

Product Specifications:

• Engine Model: LS1
• Spring Type: Single Beehive
• Maximum Valve Lift: 0.500"
• Fitted Height: 1.800" (45.7 mm)
• Pressure @ 1.800": 90 lb
• Pressure @ 1.250": 240 lb
• Coil Bind: 1.170" (29.7 mm)
• Top ID: 0.665" (16.9 mm)
• Base ID: 0.900" (23.8 mm)
• Top OD: 1.035" (26.3 mm)
• Base OD: 1.295" (33.2 mm)

What's Included:

• 16 × Performance Springs PS BH503 Single Beehive Valve Springs

Performance Valve Springs specifies that a Holden LS1 requires 16 × PS BH503 springs.

Important: Always verify valve lift, fitted height, spring dimensions, pressures, coil bind clearance, retainer compatibility and application suitability before installation. Performance Valve Springs states that valve spring pressure specifications have an approximate ±8% tolerance. The installer is responsible for checking and rechecking all dimensions, pressures, applications and specifications before, during and after installation.