Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
M61 Tether
You save the cost of buying thicker more expensive bearings
Provides power like a single-plane and throttle response like a dual-plane
OUTER SHELL Coated in silicone to insulate and hold up under extreme conditions
2019 GMC Sierra 1500 Limited 78
Edelbrock Pontiac Performer D-Port Head - 87cc - Assembled H753C2454 M61 TetherCylinder Head Specifications: Combustion chamber volume: (A) 65cc 72cc 87cc; Intake runner volume: 204cc; Exhaust runner volume: 145cc; Intake valve diameter: 2. 11"; Valve stem diameter: 11 32"; Exhaust valve diameter: 1. 66"; Valve guides: Manganese bronze; Deck thickness: 5 8"; Valve spring diameter: 1. 46"; 120lbs. @ 1. 800" Inst. Height; Valve spring maximum lift: . 550"; 1. 150" Coil Bind; Rocker stud: 7 16"; Guideplate: Hardened steel; Pushrod