When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
After putting the Torquer V4, headers, Caddy lifters, and other supporting mods in the car over the winter it dynoed at 453 at 4400' elevation at about 40 degrees ambient temp. 6 weeks later I pulled the valve covers a noticed all of my valve tips were scrubbed by the rockers. I upgraded the trunnions to CHE but kept the factory rockers. I pulled the heads and sent to to TSP for their stage 2.5 porting service. When I put it back together it got ARP head bolts, Johnson 2116LSR lifters, custom length Manton stage 3 pushrods, billet rocker pedestals, TSP's roller tip rockers, Comp Cams machined valve locks, and a ported MSD Atomic intake manifold. I checked the wear pattern after about 200 miles and it looks great.
This time around at the same elevation but at about 85 degrees ambient it made 484/427 on the same dyno. I'm happy with the numbers. Next up is an RST/RXT clutch,(haven't decided yet) and TT rebuild, will be doing the rear main with upgraded seal plate, oil barbell, and any other "while I'm in there" things that make sense for my build.
I'm pretty convinced that any LS valve train with a cam that has aggressive lobe styles, high lift, or bad assed valve springs needs roller tip rocker arms. You can put all manner of trunnion upgrades on the stock rockers, but you're putting a band aid on a wound that needs a bunch of stiches. Some get away with it....lots don't.
LS2 Engine Work Complete
