Engine Valve Spring Set Model or Series: Pro-Alloy Mechanical Roller Number Of Coils: Dual Spring Damper Spring: No Overall Diameter: 1.550″ Inside Diameter: 0.815″ Spring Height: 1.880″ Seat Pressure: 230 lbs at 1.880″ Open Pressure: 550 lbs at 1.250″ Coil Bind: 1.080″ Spring Rate lbs. Takes for a longer spring life, even in rough racing […]
Fitment and Product Information. Howard and his wife retired in 1965 and turned the business over to his oldest son, Jerry, who ran the company until 1985. Jerry was considered one of the top engine turners of his day, and along with Don Madden, ran a series of “Howards Cams Rattler” and “Howards Cams Special” […]
Fitment and Product Information. Howard and his wife retired in 1965 and turned the business over to his oldest son, Jerry, who ran the company until 1985. Jerry was considered one of the top engine turners of his day, and along with Don Madden, ran a series of “Howards Cams Rattler” and “Howards Cams Special” […]