Hi Rob. Have you ever played with over sized intake seats on a 6.7 cummins? We had a couple intakes not be as tight of an inteference fit as we normally would feel when putting them in. Sbi 1375E-1 is the replacement number for the intakes. Found a sbi 1375E + 030. Thats 0.030" bigger and we just dont know if thats too much of an oversize for comfort? As you know, the 0.020" oversized exhaust seats are done lots but didnt know if the 0.030" oversized intakes are known to work? Thank you

Well I have been thinking of this for a while. After I get moved in to the new shop in October. I should have enough money and time from you guys to do camshaft test videos. Not sure how we go about doing it yet. Question I have What brand of cams should we do. ? Colt or Hamilton?

Hi guys. Im currently getting into alot of engine machining work here at our shop and I got a question for Rob since he is the cummins guru haha. Valve seats, in a performance engine, would you recommend a different or "better" valve seat over a stock replacement one?

Can any of you guys there building an engine please look at this sheets for me and let me know if i should add something, THE COMPLETE VERSION IS IN THE CLASSROOM FOR DOWNLOAD IF YOU WOULD LIKE IT

I like it ! What you guys think ?