Proflow Billet Oil Pressure Gauge Port Adaptor - LS Engines M16x1.5 - PFE674-LS

Proflow Billet Oil Pressure Gauge Port Adaptor – LS Engines | M16x1.5 | PFE674-LS

Run a mechanical oil pressure gauge on your LS engine without sacrificing your factory oil pressure switch. The Proflow PFE674-LS is precision-machined from billet aluminium and provides a dedicated 1/8" NPT port for your gauge line — a clean, reliable solution for any LS build or swap.

Key Features

• Billet aluminium construction for strength and long-term durability
• 1/8" NPT port for mechanical oil pressure gauge line connection
• Retains factory oil pressure switch — no functionality lost
• M16 x 1.50mm thread for direct fitment to LS block or valley cover
• Anodised finish for corrosion resistance
• Direct bolt-on installation — no modifications required

Specifications

• Part Number: PFE674-LS
• Material: Billet Aluminium
• Finish: Anodised
• Thread: M16 x 1.50mm
• Gauge Port: 1/8" NPT

Fitment

Suits GM LS-series engines including LS1, LS2, LS3, LS6, LS7, LSA and related variants. Installs into the M16 x 1.50mm oil line port on the rear of the block (LS1) or valley cover (LS2/LS3/LS6).

Applications

Chevrolet Corvette, Camaro, Holden Commodore VT–VF with LS engines, and all LS engine swap builds requiring mechanical oil pressure gauge installation.

Installation note: Use thread sealant on installation. Torque to manufacturer specifications.

Need help confirming fitment for your specific engine? Contact us — we’re here to help you get the right parts for your build.