Mr Gasket Performance Exhaust Gasket for Square Port 1.85"W x 1.90"H MG153 Product:Suit Big Block Chevy 1965-99 with Cast Iron, Dart & World Products He lightening holes and large radii

lightening holes and large radii on all journals

Signature Series Black Valve CoversChevrolet 262-400 '59-86 (tall)

K&N Custom Nostalgia Air Cleaner Assembly 4 x 2"Fits Neck Size 2-5/8 - KN60-0400

Both materials are nominally rated at 180

Facilitates Optimum Sealing Of Gasket Surfaces

Mr Gasket Performance Exhaust Gasket for Square Port 1.85"W x 1.90"H MG153 Product:Suit Big Block Chevy 1965-99 with Cast Iron, Dart & World Products He lightening holes and large radiiMr Gasket Performance Exhaust Gasket for Square Port 1. 85"W x 1. 90"HSuit Big Block Chevy 1965 99 with Cast Iron, Dart & World Products Heads MG153 153 Mr Gasket was the first manufacturer to incorporate slotted mounting bolt holes at the ends of each exhaust gasket. This allows the gasket to be installed without removing the header flange or exhaust manifold entirely from cylinder head, making installation faster and easier.