stock heads

[txtec]

what is the most h.p. trq. youve seen or would expect to see out of untouched 06 dyna heads?? i am at 89h.p. 95trq with 10.25 comp.204 cams. i am wondering if more cam woul make much differance whith stock heads.

[Mike]

They are kind of all over the map due to casting differences but we typicaly see 92-95 max from a good set of stock heads. Your close at 89 and your compression could stand a little more cam. See our dyno library of 211 kits on this site to get a feel of what adding cam would do. These are stock heads, 10.25 comp and 211 cams. As you add cam duration and overlap to get these numbers, you may start to see a tq dip develope around 2.5k. The stock 06L heads can take the lift of the 251 cams and this is the route I would suggest. The dyno charts should look similar to the 211 kits but slightly better overall due to the increased lift (similar timing to the 211's).