This time on SPPTV the S15 Needs a new radiator, so naturally a huge camshaft spec'd for race cars is also swapped in! Finally the S15 gets some personality. If you don't know, the S15 is a 5.3 LS swapped minitruck with front air ride and some other custom features. The LS15 as it was originally called was the first LS swap me or any of my friends had done. This truck was the prototype for the Sh!thorse and all the other LS swaps that we have done in the years since.

The problem with doing a cam swap on an LS engine is basically that in order to remove the lifters, you must remove the cylinder heads. There is a lot more involved but that's what it comes down to. The lifters must stay up and out of the way while the old cam is removed and the new one slid in. I read on the internet that a good way to do this is with wood dowels through the oil galleries in the front of the engine block. The wood dowels jam against the lifters and act as a guard against the lifters falling down and blocking the cam, or worse falling into the bottom end of your engine. The wooden dowels and this whole operation is a bit risky, but does save a lot of time. Worst case scenario if something goes wrong is removing the head or a head.

Video to follow going in depth into the Summit Pro LS 8704 cam. In my opinion it is the greatest thing ever and transformed the S15 from a fuel efficient, modern, composed cruiser, to a fuel stinking, rowdy but still reliable "race truck".

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