PAC Racing 1300 Series Valve Spring Dual Spring 663 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD Maglock Holley EFI Intake Manifold -

Holley EFI Intake Manifold - Square Bore - Single Plane - Rectangle Port - Aluminum - Natural - GM LS-Series 300-129

Wrap features a 25% overlap based on the nominal size listed

Big Block Chevy / Brodix / Dart Merlin ll Heads

BAKFlip MX4Pickup trucks have come a long way

It’s comparable dimensionally to a Muncie

PAC Racing 1300 Series Valve Spring Dual Spring 663 lb/in Spring Rate 1.150" Coil Bind - 1.550" OD Maglock Holley EFI Intake Manifold -Product Description: Valve Spring 1300 Series Dual Spring Damper 663 lb in Spring Rate 1. 150 in Coil Bind 1. 550 in OD Set of 16 PAC Racing Springs is part of the Race Winning Brands Family. With more than 100 years of spring manufacturing experience. We understand the demands of racing and provide a commitment to all of our customers to provide the best service possible. We continue to expand products and offer expanded onsite technical services at