I don’t think you can go wrong with the summit cam for the price. Worst case pull it and try another one. With out them trying your particular engine build a dyno won’t be an accurate test for you. I can assure you each of their cams has an accurate description of rpm range so you know what you’ll get. Towing a car hauler id recommend the 8718. I’ve tuned in the stage 2 truck cam as well which is a fun cam that allows a healthy mid and very strong top end but probably wouldn’t be best for a towing application. It’s a somewhat healthy cam. My setup is somewhat similar to yours with 10:5:1 compression ratio and 862 heads on 6.0. Just pull the trigger man you won’t regret it.

would seeing an overall number like say 40 horsepower make you happy? With the truck it’s a little more about useable power throughout the curve. I don’t think many companies post dyno graphs for truck cams but i could be wrong. At least I didn’t see any in my research. I compared specs and emailed a few companies with questions and even asked for a dyno graph from crane and was told that they don’t provide that info. I settled on summit for the price and all the info they posted up about it and they always seem to chime in here if anyone has questions. A few buddies and I were looking into renting a dyno for a Saturday morning sometime if we end up doing it I’ll post up the graph. Also one of their cams a friend installed I believe it was the 8701 underneath the summit sticker there was an elgin one.

Hello there. The lobes were developed by a designer of over twenty years. Valve event timing was determined by our own experienced team based on several years of data on multiple platforms on a chasssis dyno. We have employees running them to in their own vehicles.

We have two engine dynos, but Chassis dyno numbers from third parties (our customers) is what people trust and relate to anyway. The cams will do the talking for us.

Kyle brings up a good point though. These came out on Independence Day and we heavily encourage customers who've installed and ran them to leave reviews (holding the parts in their hands, power, times, driveability). It helps other customers form their own decisions.

Ok the crane camshaft with similar specs sells for 400 bucks. Summit stage 1 is 259. My experience with them as a professional mechanic and a mildly experienced tuner has been great. At nearly half the price of their competition it’s a no brainer in my opinion. Hopefully I can post dyno info soon.