I am looking for a HPd billet head for my sport 400 and Right now I have a Hotseat billet head on it right now But i want to have more compresion the 14 to 1 .......

Thanx Austin

 

Why don't you have the stock head or even the Hotseat head cut and re-chambered.I used my stock head (cut for 15.5:1)with a Aaen cylinder girdle with no problems.I thought about buying another head,but I was told by my engine builder that he has seen and heard from others that a stock head cut and re-chambered will out perform a billet head.jmo

 

The increased spherical cooling characteristics of the HPD head, along with the o-ring seal design, provides for superior all around cooling. Besides the convenience of the changeable domes.