Looking for more power out of your 6.7l? We have seen 30hp+ on 6.7l engines using these valves over OEM 1.3″ valves.
This kit includes, 24 high temp valves and 24 High quality Tucker seats
Inconel exhaust valve upgrade is recommended for engines over 1250hp
minimum bore 4.210
Recommended seat press is .0065″
works well with 103# springs to 4500 rpm or up to 60 PSI boost or drive pressure. Over 4500 rpm or 60psi we suggest 110# springs