Education, Chevrolet LS engine mechanical roller valve train

rx dealer · 02-25-2018, 11:16 AM

The block must have the lifter bores bushed to help control the oil flow to the top of the valve train. If you don't you will flood the top end of the engine. The valve springs are critical. I went from having a "recommended" valve spring #860 open to a weaker valve spring that is #90 less. The heavy spring was making the valve to bounce after closing. I spent the extra money to put these parts on a spintron and that was my proof. Rocker shaft is a must ( Jesel / T&D ). Luke

02-25-2018, 11:16 AM	#3
rx dealer Member Join Date: Mar 2007 Location: Lake Orion, Michigan Posts: 337 Likes: 12 Liked 53 Times in 13 Posts	Re: Education, Chevrolet LS engine mechanical roller valve t The block must have the lifter bores bushed to help control the oil flow to the top of the valve train. If you don't you will flood the top end of the engine. The valve springs are critical. I went from having a "recommended" valve spring #860 open to a weaker valve spring that is #90 less. The heavy spring was making the valve to bounce after closing. I spent the extra money to put these parts on a spintron and that was my proof. Rocker shaft is a must ( Jesel / T&D ). Luke Last edited by rx dealer; 02-25-2018 at 11:18 AM.