These Stainless steel valves and seats are perfect for converting a stock Briggs Animal, LO 206 or World Formula head to a Big Valve Head. They have the same dimensions as the stock valves except for the head size. The intake valve has a 1.250" head and a 1/4" valve stem and the keeper groove is in the proper location to give you the correct valve spring pressure. The exhaust valve head is 1.125" with a 1/4" valve stem. The valve face is ground at a 45 degree angle.
The intake seat measures 1.327" Od with a 1.125" Id and they are .200" tall. The exhaust seat measures 1.207" Od with a 1.00" Id and they are .200" tall
The valve seats are matched to the valve sizes for best performance.
The kit includes 1 Intake valve and seat and 1 exhaust valve and seat..