Jones Head - Racers Only

[Erik Jones]

Originally Posted by Jeff Dona SS3269

Do these heads come with the seats and guides installed from the manufacturer or is this done at your shop Eric? Jeff Dona ss 3269

Jeff

The castings are delivered to me in raw form. I machine the cylinder head to meet exactly what i sent to NHRA. There are 3 machining operations that cover the 3 cylinder heads i submitted, 283 thru 327 (small seat dia), 327 thru 400 (large seat dia) and LT1 (large seat,center bolt cover and water holes).

I will be posting a picture later of the valve bowl with seats installed to show how moving the seat and guide location would require welding just like it does on the 4 other replacement castings.