This box mount provides a quick-release method for mounting MSD 6420, 6425, 6430, and other ignition boxes with 7-1/2" x 3-1/2" center-to-center mounting dimensions. The kit includes an aluminum box mount, 4 quick-turn fasteners, springs, and 1/8" aluminum rivets.Spec Sheet: Allstar Spec SheetInstruction Sheet: Allstar Instruction SheetCompatibility:Fits MSD 6420, 6425, 6430, and other ignition boxes using 7-1/2" x 3-1/2" center-to-center mounting holes.FAQWhat ignition boxes does this mount fit?This mount fits MSD 6420, 6425, 6430, and other ignition boxes with 7-1/2" x 3-1/2" center-to-center mounting holes.What's included?This kit includes an aluminum box mount, 4 quick-turn fasteners, springs, and aluminum rivets.{"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "What ignition boxes does this mount fit?", "acceptedAnswer": {"@type": "Answer", "text": "This mount fits MSD 6420, 6425, 6430, and other ignition boxes with 7-1/2\" x 3-1/2\" center-to-center mounting holes."}}, {"@type": "Question", "name": "What's included?", "acceptedAnswer": {"@type": "Answer", "text": "This kit includes an aluminum box mount, 4 quick-turn fasteners, springs, and aluminum rivets."}}]}