Quote:
Originally Posted by 40 Deluxe
An advantage of the 1.6" valve is it gets the valve up higher in a seat that has been ground too deep. In effect that unshrouds the valve and gives a little more effective lift.
|
I had this problem with my 59a block with deep intake valve seats with the stock size 1.5". I contacted Old Ron for advice and he suggested I regrind the seats for the larger 1.6" Manley valves. I used my Neway hand valve seat grinding setup and the results worked out great! As Old Ron suggested the longer valve stems work out perfectly with the high lift cams - I have an original Bill Jenks 3/8's Potvin [.375 lift] in my 59a. Great advice from 40 Deluxe and Old Ron!