Head and Cam with 100k on the block?
Head and Cam with 100k on the block? Would an aggressive head/cam set up (say MS4 and PRC215s) destroy a stock bottom end with about 100K? Anyone have any success running larger similar set ups on stock bottom ends with around the same mileage?
well, you are going to be replacing a lot of moving parts up top so it should be safer there. I would say no. You should be fine. Just know that you might want to replace the rod bolts. Only thing that could destroy it really fast is an issue with PTV. Thats a tight combo, and TSP will set it up properly valve wise if you are getting the heads through them.
yeah, that was the plan. I'm just beginning to think that the motor wouldn't handle all of that with a tired bottom end. But I had planned to replace it after a while anyway... I just need it to last a little while though 
Trending Topics
yeah just make sure you replace all the gaskets on the parts that you are removing. and make sure to get at least a stock ls6 oil pump along with the new o-ring, as well as an ls2 timing chain. other then that you should be set.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
Ha - I've got you all beat! 
438,000 Km 1999 5.3
cam, rod bolts, bowl blend, head milling (.050) 918's, victor jr, 7500 rpm limit, and went off road racing it! Held together just fine. thing still has 45 lbs hot oil pressure, same as when we started!
Just do a compression test before to make sure everything is good to start. And check a rod bearing or two when you do the rod bolts, but I can't see anything being wrong unless you have bad oil pressure.
438,000 Km 1999 5.3
cam, rod bolts, bowl blend, head milling (.050) 918's, victor jr, 7500 rpm limit, and went off road racing it! Held together just fine. thing still has 45 lbs hot oil pressure, same as when we started!
Just do a compression test before to make sure everything is good to start. And check a rod bearing or two when you do the rod bolts, but I can't see anything being wrong unless you have bad oil pressure.
Ha - I've got you all beat!
438,000 Km 1999 5.3
cam, rod bolts, bowl blend, head milling (.050) 918's, victor jr, 7500 rpm limit, and went off road racing it! Held together just fine. thing still has 45 lbs hot oil pressure, same as when we started!
Just do a compression test before to make sure everything is good to start. And check a rod bearing or two when you do the rod bolts, but I can't see anything being wrong unless you have bad oil pressure.
438,000 Km 1999 5.3
cam, rod bolts, bowl blend, head milling (.050) 918's, victor jr, 7500 rpm limit, and went off road racing it! Held together just fine. thing still has 45 lbs hot oil pressure, same as when we started!
Just do a compression test before to make sure everything is good to start. And check a rod bearing or two when you do the rod bolts, but I can't see anything being wrong unless you have bad oil pressure.
Still that is a lot of miles for a modified motor. The friend who I helped build it, wanted to see how cheap we could build some hp. The engine had great oil pressure, and no piston slap on startup. We pulled the heads and dropped the pan, the rods we checked had very good bearings, same as the mains, and the only ridge at the top of the cyl's was a little bit of slightly oily carbon (I've yet to see a decent km'd truck intake that isn't covered in oil inside) and the two pistons we pulled had rings that rotated freely, without having worn out ring grooves. If it wasn't for him having the truck from his work, where he bought it from 3 years ago, I wouldn't have believed it was a high km engine.
Also, the company does highway maint. up to 2 hours away, so I'm sure LOTS of the km's were highway, and not abused like a sports car. I wouldn't blindly do what we did to every ls engine that can get to that mileage, especially if it was showing any signs of age (using oil/bad oil pressure/knock) but this one checked out ok.