Collection: Welch Plug Kits - Brass & Stainless Steel Core Hole Plugs

Premium Welch Plug Kits - Complete Engine Block Core Hole Sealing

Seal engine block core holes during rebuilds with our comprehensive range of welch plug kits from Aeroflow, Proflow, and leading performance brands. Featuring brass and stainless steel construction with complete kits for popular V8 engines, these expansion plugs deliver reliable sealing for street performance and motorsport applications.

GM LS Engine Welch Plug Kits

Complete kits for GM LS engine block core holes:

• LS1, LS2, LS3, LS6, LS7 engine compatibility
• Includes billet barbell plugs for rear block holes
• Brass and stainless steel plug options
• Complete kits with all required sizes
• Holden Commodore VT-VF applications

Small Block Chevrolet Welch Plug Kits

Comprehensive kits for SB Chevy engine rebuilds:

• 262, 265, 267, 283, 302, 305, 307, 327, 350, 400 engines
• Brass construction for corrosion resistance
• Complete sets include all core hole sizes
• Essential for engine block rebuilds and freshening

Ford & Holden V8 Welch Plug Kits

• Ford Windsor: 289, 302, 351W complete plug kits
• Ford Cleveland: 302, 351C, 400M applications
• Holden V8: 253 and 308 engine core hole plugs

Billet Barbell Plugs - LS Engines

Premium billet aluminium barbell plugs for LS engine rear block holes:

• Replaces factory plastic plugs with billet aluminium
• O-ring sealed for reliable leak-free performance
• Black anodised finish for corrosion resistance
• Essential for LS engine swaps and rebuilds
• Prevents coolant leaks at rear of block

Key Features:

• Brass and stainless steel construction for durability
• Complete kits include all required core hole sizes
• Precision-manufactured for proper fit and sealing
• Billet barbell plugs for LS rear block holes
• Essential for engine rebuilds and block preparation
• Prevents coolant and oil leaks from core holes

Applications:

Essential for engine rebuilds, block machining, engine swaps, and performance builds requiring proper core hole sealing. Perfect for preventing coolant and oil leaks during engine assembly and ensuring long-term reliability.

Complete Your Engine Build:

• Engine Accessories - Complete rebuild components
• Gaskets - Engine sealing solutions
• Bearings & Seals - Engine rebuild parts

Australian Stock: Fast shipping from Perth, WA. Expert technical support available.