Big Cam
Thread Starter
Racer
Joined: Apr 2006
Posts: 294
Likes: 1
From: Nacogdoches Texas
Big Cam
I have a question for those with large aftermarket cams in their LS2s. How often do you guys change your valve springs? I currently have Comp Cams custom grind cam from LG Motorsports (G5x3/114) together with Comp Cams pushrods, 921 dual valve springs, and trunion upgrade kit. Heads were reworked with new intake and exhaust valves, ARP head bolts, new lifters and lifter trays, oil pump, timing chain, and ATI balancer with new crank bolt. My car is a daily driver, and I currently have 15 - 20,000 miles on all the parts above.
Pro
Joined: Feb 2017
Posts: 610
Likes: 79
From: Fallbrook SanDiego county
Snatched from LS1 tech.... could be correct or NOT
234 / 242 with 605 615 lift on a 112 or 114
I wouldn't say the lift part of the equation is big! but that's a healthy amount of duration. Opening & closing rates could be pretty aggressive & cause stress on the whole valve train including the springs. I would give LG a call & ask them. It's important to have the correct lift spring but also a spring that's got enough seat pressure as well
234 / 242 with 605 615 lift on a 112 or 114
I wouldn't say the lift part of the equation is big! but that's a healthy amount of duration. Opening & closing rates could be pretty aggressive & cause stress on the whole valve train including the springs. I would give LG a call & ask them. It's important to have the correct lift spring but also a spring that's got enough seat pressure as well
Drifting
Joined: Apr 2005
Posts: 1,911
Likes: 450
From: Central NJ
I only had 252/262-630 lift on my 441, that was with 116 LSA-mid 9's on motor.
Had great street manners but also had alot more cubes.
Had great street manners but also had alot more cubes.
Last edited by tektrans; Feb 20, 2023 at 12:19 PM. Reason: add info
